survey board exam

If θ is the vertical angle of an inclined sight, δ is the angle of tilt of the staff, the error A. E = 1 - cos (θ ± δ)/cos θ B. E = 1 - sin (θ ± δ)/sin θ C. E = 1 - tan (θ ± δ)/tan θ D. none of these.

E = 1 - cos (θ ± δ)/cos θ

If the sight distance (S) is equal to the length of the vertical-curve (2l) joining two grades g1% and - g2%, the height of the apex will be A. ((S-I)/400)(g1 - g2) B. (g1 - g2)/400 C. ((g1 - g2)s2)/1600l D. none of these.

(g1 - g2)/400

A dumpy level was set up at the midpoint between two pegs A and B, 50 m apart and the staff readings at A and B were 1.22 and 1.06. With the level set up a A, the readings at A and B were 1.55 and 1.37. The collimation error per 100 m length of sight is A. 0.02 m inclined upwards B. 0.04 m inclined downwards C. 0.04 m inclined upward D. none of these.

0.04 m inclined downwards

Probable systematic error in precise levelling as recommended by International Geodetic Association should not exceed (where k is in kilometers.) A. ± 0.1 k mm B. ± 0.2 k mm C. ± 0.1 k D. 0.2 k mm.

0.2 k mm.

A dumpy level is set up with its eye-piece vertically over a peg A. The height from the top of peg A to the centre of the eye-piece is 1.540 m and the reading on peg B is 0.705 m. The level is then setup over B. The height of the eye-piece above peg B is 1.490 m and a reading on A is 2.195 m. The difference in level between A and B is A. 2.900 m B. 3.030 m C. 0.770 m D. 0.785 m E. 1.770 m.

0.770 m

If f1 and f2 are the distances from the optical centre of a convex lens of focal length f to conjugate two points P1 and P2 respectively, the following relationship holds good A. f = f1 + f2 B. f = (f1 + f2) C. 1/f = 1/f1 + 1/f2 D. none of these.

1/f = 1/f1 + 1/f2

Diopter is the power of a lens having a focal length of A. 25 cm B. 50 cm C. 75 cm D. 100 cm E. 125 cm

100 cm

The radius of curvature of the arc of the bubble tube is generally kept A. 10 m B. 25 m C. 50 m D. 100 m

100 m

The bearings of the lines AB and BC are 146° 30' and 68° 30'. The included angle ABC is A. 102° B. 78° C. 45° D. none of these.

102°

The desired sensitivity of a bubble tube with 2 mm divisions is 30". The radius of the bubble tube should be A. 13.75 m B. 3.44 m C. 1375 m D. none of these.

13.75 m

If S is the length of a subchord and R is the radius of simple curve, the angle of deflection between its tangent and sub-chord, in minutes, is equal to A. 573 S/R B. 573 R/S C. 171.9 S/R D. 1718.9 R/S E. 1718.9 S/R.

1718.9 S/R.

If the rate of gain of radial acceleration is 0.3 m per sec3 and full centrifugal ratio is developed. On the curve the ratio of the length of the transition curve of same radius on road and railway, is A. 2.828 B. 3.828 C. 1.828 D. 0.828.

2.828

Metric chains are generally available in A. 10 m and 20 m length B. 15 m and 20 m length C. 20 m and 30 m length D. 25 m and 100 m length

20 m and 30 m length

If θ is the slope of the ground and l is the measured distance, the correction is A. 2l sin2 θ/2 B. 2l cos2 θ/2 C. 2l tan2 θ/2 D. 2l cot2 θ/2.

2l sin2 θ/2

The angle between two plane mirrors of optical square, is A. 20° B. 30° C. 45° D. 60° E. 90°.

45°

If the radius of a simple curve is R, the length of the chord for calculating offsets by the method of chords produced, should not exceed. A. R/10 B. R/15 C. R/20 D. R/25.

R/20

If the angular measurements of a traverse are more precise than its linear measurements, balancing of the traverse, is done by A. Bowditch's rule B. Transit rule C. Empirical rule D. all of the above.

Transit rule

The area of a plane triangle ABC, having its base AC and perpendicular height h, is A. 1/2 bh B. 1/2 ba sin C C. 1/2 bc sin A D. √S(S - a)(S - b)(S - c) where S is (a+b+c)/2 E. all the above

all the above

A back sight A. is always taken on a point of known elevation or can be computed B. is added to the known level to obtain the instrument height C. taken on an inverted staff is treated as negative D. all the above.

all the above.

For a closed traverse the omitted measurements may be calculated A. length of one side only B. bearing of one side only C. both length and bearing of one side D. length or bearing of adjacent side E. all the above.

all the above.

In optical reading instruments A. the vertical circle is usually continuous from 0° to 359° B. the readings increase when the telescope is elevated in the face left position C. the readings decrease when the telescope is elevated in the face right position D. all the above.

all the above.

Pick up the correct specification of Ramsden eyepiece from the following : A. it consists of two equal piano convex lenses B. the curved surfaces of plano-convex lenses face each other C. the two lenses are separated by a distance equal to 2/3 of the focal length of either lens. D. the distance between the diaphragm and the front lens of the eyepiece is kept equal to 1/4 th of the focal length of a lens so that rays from a point on the diaphragm enter the eye as a parallel beam E. all the above.

all the above.

Pick up the correct statement from the following : A. in astronomical telescope, the rays from the object after refraction at the objective are brought to a focus before entering the eyepiece to produce a real inverted image in front of the eye piece B. in Galileo's telescope, the rays from the object get refracted at the objective and are intercepted by the eyepiece before a real image is formed C. a line passing through the optical centre of the objective traversing through the eyepiece, is called line of sight D. the line of sight which passes through the intersection of cross-lines marked on a diaphragm fixed in front of the eyepiece in a plane at right-angles to the axis, is called the line of collimation E. all the above.

all the above.

Pick up the correct statement from the following : A. the length of the brass handle is included in the length of chain B. the handles are on swivel joints to prevent twisting of the chain C. the fifth tag from either end of the chain is numbered 5 D. the length of the Gunter's chain is 66 ft. E. all the above.

all the above.

Pick up the correct statement from the following : A. the power of a lens is the reciprocal of its focal length B. the unit of power of the lens is diopter C. the power of two or more thin lenses in contact is the power of the combination of the lenses D. all the above.

all the above.

Pick up the correct statement from the following : A. the tangent screw enables to give small movement under conditions of smooth and positive control B. standing on the tripod is the levelling head or trib arch C. the levelling screws are used to tilt the instrument so that its rotation axis is truly vertical D. all the above.

all the above.

Pick up the correct statement from the following: A. the theodolite in which telescope can be rotated in vertical plane is called a transit B. when the vertical circle is to the left of the telescope during observation, it is called to be in left face C. when the vertical circle is to the right of the telescope during observation, it is called to be in right face D. all the above.

all the above.

The branch of surveying in which both horizontal and vertical positions of a point, are determined by making instrumental observations, is known A. tacheometry B. tachemetry C. telemetry D. all the above.

all the above.

Setting out a curve by two theodolite method, involves A. linear measurements only B. angular measurements only C. both linear and angular measurements D. none of these.

angular measurements only

A relatively fixed point of known elevation above datum, is called A. bench mark B. datum point C. reduced level D. reference point.

bench mark

In levelling operation A. when the instrument is being shifted, the staff must not be moved B. when the staff is being carried forward, the instrument must remain stationary C. both (a) and (b) D. neither (a) nor (b).

both (a) and (b)

For the construction of highway (or railway) A. longitudinal sections are required B. cross sections are required C. both longitudinal and cross sections are required D. none of these.

both longitudinal and cross sections are required

The most reliable method of plotting a theodolite traverse, is A. by consecutive co-ordinates of each station B. by independent co-ordinates of each station C. by plotting included angles and scaling off each traverse leg D. by the tangent method of plotting.

by independent co-ordinates of each station

An ideal transition curve is A. cubic parabola B. cubic spiral C. clothoid spiral D. true spiral.

clothoid spiral

The best method of interpolation of contours, is by A. estimation B. graphical means C. computation D. all of these.

computation

If a 30 m chain diverges through a perpendicular distance d from its correct alignment, the error in length, is A. d2/60 m B. d2/30 m C. d2/40 m D. d/30 m E. d/20 m

d2/60 m

Orientation of a plane table by solving two point problem is only adopted when A. saving of time is a main factor B. better accuracy is a main factor C. given points are inaccessible D. none of these.

given points are inaccessible

The limiting length of an offset does not depend upon A. accuracy of the work B. method of setting out perpendiculars C. scale of plotting D. indefinite features to be surveyed.

indefinite features to be surveyed

Plotting of inaccessible points on a plane table, is done by A. intersection B. traversing C. radiation D. none of these.

intersection

If arithmetic sum of latitudes of a closed traverse is ∑Lat and closing error in latitude is dx, the correction for a side whose latitude is l, as given by Transit Rule, is A. l x dx/∑Lat B. l x ∑Lat/dx C. ∑Lat x dx/l D. none of these.

l x dx/∑Lat

A tape of length l and weight W kg/m is suspended at its ends with a pull of P kg, the sag correction is A. l3w2/24p2 B. l2w3/24p2 C. l2w2/24p3 D. lw2/24p

l3w2/24p2

When the bubble of the level tube of a level, remains central A. line of sight is horizontal B. axis of the telescope is horizontal C. line of collimation is horizontal D. geometrical axis of the telescope is horizontal.

line of sight is horizontal

In chain surveying field work is limited to A. linear measurements only B. angular measurements only C. both linear and angular measurements D. all the above.

linear measurements only

One of the Lehmann's rules of plane tabling, is A. location of the instrument station is always distant from each of the three rays from the known points in proportion to their distances B. when looking in the direction of each of the given points, the instrument station will be on the right side of one and left side of the other ray C. when the instrument station is outside the circumscribing circle its location is always on the opposite side of the ray to the most distant point as the inter-section of the other two rays D. none of these.

location of the instrument station is always distant from each of the three rays from the known points in proportion to their distances

If the area calculated form the plan plotted with measurements by an erroneous chain, accurate area of the plan is A. measure area x length of chain use/nominal chain length B. measure area x nominal chain length/length of chain use C. measure area x (nominal chain length/length of chain use)2 D. measure area x (length of chain use/nominal chain length)2 E. none of the above

measure area x (length of chain use/nominal chain length)2

One of the tacheometric constants is additive, the other constant, is A. subtractive constant B. multiplying constant C. dividing constant D. indicative constant.

multiplying constant

For setting out a simple curve, using two theodolites. A. offsets from tangents are required B. offsets from chord produced are required C. offsets from long chord are required D. deflection angles from Rankine's formula are required E. none of these.

none of these.

Two hill tops A and B 20 km apart are intervened by a third top C. If the top most contour of the three hill tops are of the same value, state whether the line of sight AB A. passes clear of hill top C B. passes below the hill top C C. grazes the hill top C D. none of these.

passes below the hill top C

Pick up the method of surveying in which field observations and plotting proceed simultaneously from the following A. chain surveying B. compass surveying C. plan table surveying D. tacheometric surveying.

plan table surveying

Measuring with a 30 m chain, 0.01 m too short, introduces A. positive compensating error B. negative compensating error C. positive cumulative error D. negative cumulative error.

positive cumulative error

Pick up the correct statement from the following : A. the eyepiece plays no part in defining the line of sight B. the diaphragm plays no part in defining the line of sight C. the optical centre of the objective plays no part in defining the line of sight D. none of these.

the eyepiece plays no part in defining the line of sight

True meridians are generally preferred to magnetic meridians because A. these converge to a point B. these change due to change in time C. these remain constant. D. None of these.

these remain constant.

In chain surveying tie lines are primarily provided A. to check the accuracy of the survey B. to take offsets for detail survey C. to avoid long offsets from chain lines D. to increase the number of chain lines.

to avoid long offsets from chain lines

The difference of level between a point below the plane of sight and one above, is the sum of two staff readings and an error would be produced equal to A. the distance between the zero of gradient and the foot of the staff B. twice the distance between the zero of graduation and the foot of the staff C. thrice the distance between the zero of graduation and the foot of the staff D. none of the above.

twice the distance between the zero of graduation and the foot of the staff

Centering error of a theodolite produces an error A. in all angles equally B. which does not vary with the direction or pointing C. which varies with the direction of pointing and inversely with the length of sight D. none of these.

which varies with the direction of pointing and inversely with the length of sight

Let angular value of one graduation of a tube of length x be φ seconds and R be the radius of its internal curved surface, then A. φ = X/206265 R B. φ = R/206265 X C. φ = 206265/X.R D. φ = X.R/206265

φ = X/206265 R

At upper culmination, the pole star moves A. Eastward B. Westward C. Northward D. Southward

Westward

The main plate of a transit is divided into 1080 equal divisions. 60 divisions of the vernier coincide exactly with 59 divisions of the main plate. The transit can read angles accurate upto A. 5" B. 10" C. 15" D. 20" E. 30"

20"

Number of subdivisions per metre length of a levelling staff is A. 100 B. 200 C. 500 D. 1000

200

The plane at right angle to the zenith-nadir line and passing through the centre of the earth, is called A. Rational horizon B. True horizon C. Celestial horizon D. All the above

All the above

The lens equation 1/f = 1/f1 + 1/f2 is applicable A. when the thickness of the lens is small B. only to conjugate distances along the principal axis C. the computed quantities are accurate enough for geometrical optics of simple distances D. all the above.

all the above.

The total change in level along the line is equal to total back sights A. minus total fore sights B. the total rises minus total falls C. the reduced level of last point minus reduced level of the first point D. all the above.

all the above.

If α is the angle between the polar ray and the tangent at the point of commencement of a lemniscate curve, the equation of the curve, is A. l = k√sin α B. l = k√sin 2α C. l = k√sin 3α D. l = k√tan 2α E. l = k√cos 2α

l = k√sin 2α

Correction per chain length of 100 links along a slope having a rise of 1 unit in n horizontal units, is A. 100/n*2 B. 100 n*2 C. 100/n*3 D. 100/n

100/n*2

Pick up the correct statement from the following: A. Ursa Minor's remains always north of pole star B. Polar star remains always north of Polaris C. Polaris remains always north of Ursa Minor's D. Ursa Minor's pole star and Polaris are the names of the same star

Ursa Minor's pole star and Polaris are the names of the same star

The angular distance of a heavenly body from the equator, measured along its meridian, is called A. Declination B. Altitude C. Zenith distance D. Co-latitude

Declination

A star may culminate at zenith if its declination is A. Greater than the longitude of the place B. Less than the latitude of the place C. Equal to the latitude of the place D. None of these

Equal to the latitude of the place

For plane ground the scale of a vertical photograph will be same as that of a tiled photograph along the photo parallel through A. Isocenter B. Plumb point C. Principal point D. None of these

Isocenter

The point on the photograph where bisector between the vertical line through optical centre of the camera lens and the plate perpendicular meets, is known as A. Principal point B. Isocenter C. Plumb point D. Perspective centre

Isocenter

Circumpolar stars A. Rotate round the North Pole B. Rotate round the celestial pole C. Remain always above the horizon D. Are seldom seen near the pole star

Remain always above the horizon

If the whole circle bearing of a line is 180°, its reduced bearing is A. S 0° E B. S 0° W C. S D. N.

S

In levelling operation, A. The first sight on any change point is a back sight B. The second sight on any change point is a fore sight C. The line commences with a fore sight and closes with a back sight D. The line commences with a back sight and closes with a foresight.

The line commences with a back sight and closes with a foresight.

Bowditch rule is applied to A. an open traverse for graphical adjustment B. a closed traverse for adjustment of closing error C. determine the effect of local attraction D. none of the above

a closed traverse for adjustment of closing error

There are two stations A and B. Which of the following statements is correct : A. the fore bearing of AB is AB B. the back bearing of AB is BA C. the fore and back bearings of AB differ by 180° D. all the above.

all the above.

Planimeter is used for measuring A. volume B. area C. contour gradient D. slope angle E. none of these

area

Two contour lines, having the same elevation A. cannot cross each other B. can cross each other C. cannot unite together D. can unite together.

can unite together.

With usual notations, the expression V*2/gR represents A. centrifugal force B. centrifugal ratio C. super elevation D. radial acceleration.

centrifugal ratio

The longitudinal section of the surface of bubble tube is A. straight B. circular C. parabolic D. elliptic.

circular

Determining the difference in elevation between two points on the surface of the earth, is known as A. levelling B. simple levelling C. differential levelling D. longitudinal levelling.

differential levelling

Which of the following angles can be set out with the help of French cross staff? A. 45° only B. 90° only C. either 45° or 90° D. any angle

either 45° or 90°

Profile levelling is usually done for determining A. contours of an area B. capacity of a reservoir C. elevations along a straight line D. boundaries of property

elevations along a straight line

Pantagraph is used for A. measuring distances B. measuring areas C. enlarging or reducing plans D. setting out right angles

enlarging or reducing plans

The scale of a tilted photograph of focal length f, taken from an altitude H, along the plate parallel through plumb point, is A. f/H sec θ B. f sec θ/H C. f/H D. f/H cos ½θ

f sec θ/H

Closed contours, with higher value inwards, represent a A. depression B. hillock C. plain surface D. none of the above

hillock

The operation of revolving a plane table about its vertical axis so that all lines on the sheet become parallel to corresponding lines on the ground, is known A. levelling B. centering C. orientation D. setting.

orientation

If 50 m point of a 100 m tape is 50 cm off line, and 50 m sections are straight, an error is generated equal to A. 1/10000 B. 1/15000 C. 1/20000 D. 1/25000.

1/20000

If the image of a triangulation station of R.L. 500 m is 4 cm from the principal point of a vertical photo taken from an altitude of 2000 m, above datum, the height displacement will be A. 2 mm B. 4 mm C. 6 mm D. 10 mm

10 mm

Correction per chain length of 100 links along a slope of α radians, is A. 100 α^2 B. 100 α C. 100 α^3 D. 100 α^-1.

100 α

The relief displacement of a building 72 m high on photograph is 7.2 mm and its top appears 10 cm away from principal point. The flying height of the camera, is A. 500 m B. 1000 m C. 1500 m D. 2000 m

1000 m

ABCD is a regular parallelogram plot of land whose angle BAD is 60°. If the bearing of the line AB is 30°, the bearing of CD, is A. 90° B. 120° C. 210° D. 270°

210°

The reduced level of a floor is 99.995 m, the staff reading on the floor is 1.505 m. If the inverted staff reading against the roof is 1.795 m, the floor level below the slab, is A. 3.290 m B. 3.300 m C. 3.275 m D. 2.790 m

3.300 m

The slope correction for a length of 30 m along a gradient of 1 in 20, is A. 3.75 cm B. 0.375 cm C. 37.5 cm D. 2.75 cm.

3.75 cm

The bearing of lines OA and OB are 16° 10' and 332° 18', the value of the included angle BOA is A. 316° 10' B. 158° 28' C. 348° 08' D. 43° 52'

43° 52'

A lemniscate curve will not be transitional throughout, if its deflection angle, is A. 45° B. 60° C. 90° D. 120° E. 180°

45°

If the equatorial distance between two meridians is 100 km, their distance at 60° latitude will be A. 1000 km B. 800 km C. 600 km D. 500 km

500 km

The back staff reading on a B.M. of R.L. 500.000 m is 2.685 m. If foresight reading on a point is 1.345 m, the reduced level of the point, is A. 502.685 m B. 501.345 m C. 501.340 m D. 504.030 m E. 502.585 m.

501.340 m

The Polaris remains below horizon at A. 10° N B. 50° N Latitude C. Equator D. 5° S latitude

5° S latitude

To obtain photographs of an area of 1000 m average elevation, on scale 1 : 30,000, with a camera of 30 cm focal length, the flying height is A. 4000 m B. 5000 m C. 6000 m D. 7000 m

6000 m

The value of geocentric parallax to be added to the observed altitude of sun is A. 9" cos α B. 9" sin α C. 9" tan α D. 9" cot α

9" cos α

The meridian of a place is A. a great circle passing through the place and the poles B. a great circle whose plane is perpendicular to the axis of rotation and it also passes through the place C. a semi-circle which passes through the place and is terminated at the poles D. an arc of the great circle which passes through the place and is perpendicular to the equator.

A semi-circle which passes through the place and is terminated at the poles

Polaris is usually observed for the determination of the azimuth when it is A. At culmination B. At elongation C. Neither at culmination nor at elongation D. Either at culmination or at elongation

At elongation

The smaller horizontal angle between the true meridian and a survey line, is known A. Declination B. Bearing C. Azimuth D. Dip

Azimuth

If L is the specified length of a tape, L1 its actual length and S the measured distance, then, the true distance is given by the formula, A. (L1/L) x S B. (L/L1) x S C. (L-L1/L) x S D. (L1/L)*2 x S

(L1/L) x S

If R is the radius of the main curve, θ the angle of deflection, S the shift and L the length of the transition curve, then, total tangent length of the curve, is A. (R - S) tan θ/2 - L/2 B. (R + S) tan θ/2 - L/2 C. (R + S) tan θ/2 + L/2 D. (R - S) tan θ/2 + L/2 E. (R - S) cos θ/2 + L/2

(R + S) tan θ/2 + L/2

The graduations in prismatic compass i) are inverted ii) are upright iii) run clockwise having 0° at south iv) run clockwise having 0° at north The correct answer is A. (i) and (iii) B. (i) and (iv) C. (ii) and (iii) D. (ii) and (iv)

(i) and (iii)

The angle between the observer's meridian and declination circle of a heavenly body, is known as A. Hour angle B. Azimuth C. Right ascension D. Declination

Hour angle

The station pointer is generally used in A. Triangulation surveying B. Astronomical surveying C. Hydrographical surveying D. Photogrammetric surveying

Hydrographical surveying

At eastern elongation, the pole star moves A. Eastward B. Westward C. Northward D. Southward

Northward

The position of the sun when its north declination is maximum is known as A. Vernal equinox B. Autumnal equinox C. Summer solstice D. Winter solstice

Summer solstice

Rotation of the camera at exposure about its vertical axis, is known as A. Swing B. Tilt C. Tip D. None of these

Swing

During levelling if back sight is more than foresight A. The forward staff is at lower point B. The back staff is at lower point C. The difference in level, cannot be ascertained. D. none of these.

The back staff is at lower point

Pick up the correct statement from the following : A. The horizontal angle between magnetic meridian and true meridian at a place is called magnetic declination or variance of the compass B. the imaginary lines which pass through points at which the magnetic declinations are equal at a given time are called isogonic lines C. the isogonic lines through places at which the declination is zero are termed agonic lines D. all the above.

all the above.

The maximum error in radial line assumption, is A. h/H f tan θ B. h/H f² tan θ C. h/H f² sin θ D. h/H f cos θ

h/H f tan θ

If a tripod settles in the interval that elapses between taking a back sight reading and the following foresight reading, then the elevation of turning point will A. increase B. decrease C. not change D. either 'A' or 'B'

increase

Theodolite is an instrument used for A. tightening the capstan-headed nuts of level tube B. measurement of horizontal angles only C. measurement of vertical angles only D. measurement of both horizontal and vertical angles

measurement of both horizontal and vertical angles

Subtense bar is an instrument used for A. levelling B. measurement of horizontal distances in plane areas C. measurement of horizontal distances in undulated areas D. measurement of angles

measurement of horizontal distances in undulated areas

The formula for the horizontal distances for inclined sights, on staff held normalis f/i s cos θ + (f + d) cos θ ± h sin θ A. minus sign is used for angle of depression B. plus sign is used for angle of depression C. minus sign is used for angle of elevation D. non of these.

minus sign is used for angle of depression

Direct method of contouring is A. a quick method B. adopted for large surveys only C. most accurate method D. suitable for hilly terrains

most accurate method

Normal tension is that pull which A. is used at the time of standardising the tape B. neutralizes the effect due to pull and sag C. makes the correction due to sag equal to zero D. makes the correction due to pull equal to zero

neutralizes the effect due to pull and sag

Accuracy of 'fix' by two point problem, is A. bad B. good C. not reliable D. unique.

not reliable

In a constant level tube, size of the bubble remains constant because upper wall is A. of relatively larger radius B. of relatively smaller radius C. flat D. convex downwards.

of relatively larger radius

The 'fix' of a plane table station with three known points, is bad if the plane table station lies A. in the great triangle B. outside the great triangle C. on the circumference of the circumscribing circle D. none of these.

on the circumference of the circumscribing circle

The method of finding out the difference in elevation between two points for eliminating the effect of curvature and refraction, is A. reciprocal levelling B. precise levelling C. differential levelling D. flying levelling

reciprocal levelling

In reciprocal levelling, the error which is not completely eliminated, is due to A. earth's curvature B. non-adjustment of line of collimation C. refraction D. non-adjustment of the bubble tube.

refraction

The process of determining the locations of the instrument station by drawing re sectors from the locations of the known stations is called A. radiation B. intersection C. resection D. traversing

resection

While viewing through a level telescope and moving the eye slightly, a relative movement occurs between the image of the levelling staff and the cross hairs. The instrument is A. correctly focussed B. not correctly focussed C. said to have parallax D. free from parallax.

said to have parallax

The staff intercept will be A. greater farther off the staff is held B. smaller, farther off the staff is held C. smaller, nearer the staff is held D. same, wherever the staff is held.

smaller, farther off the staff is held

The zero of the graduated circle of a prismatic compass is located at A. north end B. east end C. south end D. west end.

south end

A lens or combination of lenses in which the following defect is completely eliminated is called aplanatic A. spherical aberration B. chromatic aberration C. coma D. astigmatism.

spherical aberration

The chord of a curve less than peg interval, is known as A. small chord B. sub-chord C. normal chord D. short chord.

sub-chord

Size of a theodolite is specified by A. the length of telescope B. the diameter of vertical circle C. the diameter of lower plate D. the diameter of upper plate

the diameter of lower plate

A traverse deflection angle is A. less than 90° B. more than 90° but less than 180° C. the difference between the included angle and 180° D. the difference between 360° and the included angle.

the difference between the included angle and 180°

For a line AB A. the forebearing of AB and back bearing of AB differ by 180° B. the forebearing of AB and back bearing of BA differ by 180° C. both (A) and (B) are correct D. none is correct

the forebearing of AB and back bearing of AB differ by 180°

The tangent to the liquid surface in a level tube, is parallel to the axis of the level tube at A. every point of the bubble B. either end of the bubble C. the mid-point of the bubble D. no where.

the mid-point of the bubble

Tacheometric formula for horizontal distances using horizontal sights can also suitable be employed for inclined sights through θ by multiplying A. the constants by sin2 θ B. the constants by cos2 θ C. the constants by cos θ D. the constants by sin θ E. the multiplying constant by cos2 θ and additive constant by cos θ.

the multiplying constant by cos2 θ and additive constant by cos θ.

On a diagonal scale, it is possible to read up to A. one dimension B. two dimensions C. three dimensions D. four dimensions.

three dimensions

Locating the position of a plane table station with reference to three known points, is known as A. intersection method B. radiation method C. resection method D. three point problem.

three point problem.

To avoid large centering error with very short legs, observations are generally made A. to chain pins B. by using optical system for centering the theodolite C. to a target fixed on theodolite tripod on which theodolite may be fitted easily D. all the above.

to a target fixed on theodolite tripod on which theodolite may be fitted easily

Subtense tacheometry is generally preferred to if ground is A. flat B. undulating C. mountaineous D. deserts.

undulating

It is more difficult to obtain good results while measuringhorizontal distance by stepping A. up-hill B. down-hill C. in low undulations D. in plane areas.

up-hill

Magnetic bearing of a survey line at any place A. remains constant B. changes systematically C. varies differently in different months of the year D. is always greater than true bearing.

varies differently in different months of the year

Which of the following statements is incorrect ? A. Error due to refraction may not be completely eliminated by reciprocal levelling. B. Tilting levels are commonly used for precision work. C. The last reading of levelling is always a foresight. D. All of the above statements are incorrect.

All of the above statements are incorrect.

The main object of the astronomer to obtain A. Astronomical latitude B. Astronomical longitude C. Astronomical bearing D. All of these

All of these

Pick up the correct statement from the following: A. Sidereal time at any instant is equal to the hour angle of the first point of Aries B. Local sidereal time of any place is equal to the right ascension of its meridian C. Sidereal time is equal to the right ascension of a star at its upper transit D. All the above

All the above

Pick up the correct statement from the following: A. The star's movement is apparent due to the actual steady rotation of the earth about its axis B. The stars move round in circular concentrated parts C. The centre of the circular paths of stars is the celestial pole D. All the above

All the above

Places having same latitude A. Lie on the parallel of the latitude B. Are equidistant from the nearer pole C. Are equidistant from both the poles D. All the above

All the above

The correction applied to the measured base of length 'L' is A. Tension = (P - Ps)L/AE B. Sag = L³w²/24P² where w is the weight of tape/m C. Slope = (h²/2L) + (h⁴/8L³) where h is height difference of end supports D. All the above

All the above

The difference in longitude of two places expressed in time is equal to the difference in their A. Sidereal time B. Apparent solar time C. Mean solar time D. All the above

All the above

The following points form a pair of homologous points: A. Photo principal point and ground principal point B. Photo isocenter and ground isocenter C. Photo plumb point and ground plumb point D. All the above

All the above

The position of a heavenly body on the celestial sphere can be completely specified by A. Its altitude and azimuth B. Its declination and hour angle C. Its declination and right ascension D. All the above

All the above

Pick up the correct statement from the following : A. Box sextant is used for the measurement of horizontal angles B. Cross staff is used for setting out right angles C. Gradiometer is used for setting out any required gradient D. Line ranger is used for locating intermediate stations on a survey line E. All the above.

All the above.

In field astronomy, the quantities observed are entirely A. Lengths B. Angles C. Heights D. All of these

Angles

If the true bearing of a line AB is 269° 30′, then the azimuth of the line AB is

Answer: Option C

The ratio of the radius and apex distance of a curve deflecting through Δ°, is A. (sec Δ/2 -1) B. (1 - sec Δ/2) C. (cos Δ/2 -1) D. (tan Δ/2 -1)

(sec Δ/2 -1)

The correction for parallax, is A. - 8".8 cos α B. + .8" sin α C. + 8".8 cos α D. - 8".8 cos α

+ 8".8 cos α

A level when set up 25 m from peg A and 50 m from peg B reads 2.847 on a staff held on A and 3.462 on a staff held on B, keeping bubble at its centre while reading. If the reduced levels of A and B are 283.665 m and 284.295 m respectively, the collimation error per 100 m is A. 0.015 m B. 0.030 m C. 0.045 m D. 0.060 m

0.060 m

Limiting gradient for locating the base line on evenly-sloping ground, is A. 1 in 12 B. 1 in 10 C. 1 in 8 D. 1 in 6

1 in 12

The permissible error in chaining for measurement with chain on rough or hilly ground is A. 1 in 100 B. 1 in 250 C. 1 in 500 D. 1 in 1000

1 in 250

Correction per chain length of 100 links along a slope of α° is A. 1.5α^2/100 B. 1.5α/100 C. 1.5α^3/100 D. 1.5α^3.

1.5α^2/100

Perpendicularity of an offset may be judged by eye, if the length of the offset is A. 5 m B. 10 m C. 15 m D. 20 m.

15 m

For a curve of radius 100 m and normal chord 10 m, the Rankine's deflection angle, is A. 0°25'.95 B. 0°35'.95 C. 1°25'.53 D. 1°35'.95 E. 2°51'.53.

2°51'.53.

If h is the difference in level between end points separated by l, then the slope correction is h2/2l+h4/8l3. The second term may be neglected if the value of h in a 20 m distance is less than A. 1/2 m B. 1 m C. 2 m D. 3 m

3

While measuring with a metallic tape of 30 m length pull should be applied A. 1 kg B. 2 kg C. 3 kg D. 4 kg

3 kg

The correction to be applied to each 30 metre chain length along θ° slope, is A. 30 (sec θ - 1) m B. 30 (sin θ - 1) m C. 30 (cos θ - 1) m D. 30 (tan θ - 1) m E. 30 (cot θ - 1) m.

30 (sec θ - 1) m

Two concave lenses of 60 cm focal length are cemented on either side of a convex lens of 15 cm focal length. The focal length of the combination is A. 10 cm B. 20 cm C. 30 cm D. 40 cm

30 cm

For indirect ranging, number of ranging rods required, is A. 1 B. 2 C. 3 D. 4 E. 5

4

In precision theodolite traverse if included angles are read twice and the mean reading accepted using both verniers having a least count of 30". Assuming the instrument to be in perfect adjustment, linear measurements correct to 6 mm per 30 metre tape duly corrected for temperature, slope and sag, the angular error of closure not to exceed (where n is the number of traverse legs) A. 50" √n B. 30" √n C. 60" √n.

50" √n

The normal longitudinal overlap is generally kept A. 50 % B. 60 % C. 70 % D. 75 %

60 %

If L is in kilometres, the curvature correction is A. 58.2 L2 mm B. 64.8 L2 mm C. 74.8 L2 mm D. 78.4 L2 mm.

78.4 L2 mm.

With standard meridian as 82° 30' E the standard time at longitude 90° E is 8 h 30 m. The local mean time at the place will be A. 7 h 00 m B. 7 h 30 m C. 8 h 00 m D. 9 h 00 m

9 h 00 m

If + 0.8% grade meets - 0.7% grade and the rate of change of grade for 30 m distance is 0.05, the length of the vertical curve will be A. 600 m B. 700 m C. 800 m D. 900 m E. 1000 m

900 L = (g1-g2)/r. = {(0.8)-(-0.7)}/0.05. = 30* 30 = 900.

The angle of intersection of a contour and a ridge line, is A. 30° B. 45° C. 60° D. 90°

90°.

The bearing of line AB is 152° 30' and angle ABC measured clockwise is 124° 28'. The bearing of BC is A. 27° 52' B. 96° 58' C. 148° 08' D. 186° 58'

96° 58'

If the R.L. of a B.M. is 100.00 m, the back- sight is 1.215 m and the foresight is 1.870 m, the R.L. of the forward station is A. 99.345 m B. 100.345 m C. 100.655 m D. 101.870 m

99.345 m

The minimum range for sliding the focusing lens in the internal focusing telescope for focusing at all distances beyond 4 m is A. 5 mm B. 10 mm C. 15 mm D. 20 mm

20 mm

A sewer is laid from a manhole A to a manhole B, 250 m away along a gradient of 1 in 125. If the reduced level of the invert at A is 205.75 m and the height of the boning rod is 3 m, the reduced level of the sight rail at B, is A. 208.75 m B. 202.75 m C. 206.75 m D. 211.75 m

206.75. 205.75 - 1*250/125 = 206.75 m.

The magnetic bearing of a line is 32° and the magnetic declination is 10° 15' W. The true bearing is A. 21° 45' B. 42° 15' C. 42° 15' W D. 21° 45' W

21° 45'

The time interval between successive transits of the moon, is A. 24 hours 10 minutes B. 20 hours 25 minutes C. 24 hours 50 minutes D. 23 hours 50 minutes

24 hours 50 minutes

Keeping the instrument height as 1.5 m, length of staff 4 m, the slope of the ground as 1 in 10, the sight on the down-slope, must be less than A. 30 m B. 25 m C. 20 m D. 15 m

25 m

The bearing of C from A is N 30° E and from B, 50 metres east of A, is N 60° W. The departure of C from A is A. 50 m B. 50 √3 m C. 25 √3 m D. 25 m

25 m

The curvature of the earth's surface, is taken into account only if the extent of survey is more than A. 100 sq km B. 160 sq km C. 200 sq km D. 260 sq km.

260 sq km.

The reduced bearing of a line is N 87° W. Its whole circle bearing is A. 87° B. 273° C. 93° D. 3°

273°

Offsets are measured with an accuracy of 1 in 40. If the point on the paper from both sources of error (due to angular and measurement errors) is not to exceed 0.05 cm on a scale of 1 cm = 20 m, the maximum length of offset should be limited to A. 14.14 B. 28.28 m C. 200 m D. none of these.

28.28 m

The moon rotates round the earth once in every A. 29 days B. 29.35 days C. 29.53 days D. 30 days

29.35 days

If two points differing by 1° of latitude and of the same longitude is 110 km apart on the earth, then two astronomical positions on the moon is about A. 10 km B. 25 km C. 30 km D. 50 km

30 km

If the radius of a simple curve is 600 m, the maximum length of the chord for calculating offsets, is taken A. 10 m B. 15 m C. 20 m D. 25 m E. 30 m.

30 m.

A Nautical mile is A. One minute arc of the great circle passing through two points B. One minute arc of the longitude C. 1855.109 m D. All the above

All the above

A star in northern sphere is said to transit A. When its altitude is maximum B. When its azimuth is 180° C. When it is in south D. All the above

All the above

A star is said to elongate A. When the star momentarily moves vertically B. When the angle at the star of the spherical triangle is 90° C. When the star D. All the above

All the above

Accidental errors A. Do not follow any definite mathematical law B. Cannot be removed by applying corrections to the observed values C. Are generally small D. All the above

All the above

For mapping any country A. Geodetic triangulation of greatest possible sides and accuracy is carried out B. Primary triangles are broken down into secondary triangles of somewhat lesser accuracy C. Secondary triangles are further broken into third and fourth order triangles, the points of which are used for detail surveys D. All the above

All the above

Homologous point is A. Photo principal point B. Ground principal point C. Ground isocenter D. All the above

All the above

If the distance between the projectors is altered by a movement along X-axis of one projector, A. The length of the air base is increased B. The scale of the model is altered C. y-parallax is not affected D. All the above

All the above

The great circle whose plane is perpendicular to the axis of rotation of the earth, is called A. Equator B. Terrestrial equator C. 0° latitude D. All the above

All the above

The altitude of a circumpolar star is maximum when it is A. At east elongation B. At upper culmination C. At west elongation D. At lower culmination

At upper culmination

The relation between the air base (B), photographic base (b), flying height (H) and the focal length (f) of a vertical photograph, is A. B = bH/f B. B =f/bH C. B = b/fH D. B = H/bf

B = bH/f

Prismatic compass is considered more accurate than a surveyor's compass, because A. it is provided with a better magnetic needle B. it is provided with a sliding glass in the object vane C. its graduations are in whole circle bearings D. it is provided with a prism to facilitate reading of its graduated circle E. both (c) and (d).

it is provided with a prism to facilitate reading of its graduated circle

In the prismatic compass A. the magnetic needle moves with the box B. the line of the sight does not move with the box C. the magnetic needle and graduated circle do not move with the box D. the graduated circle is fixed to the box and the magnetic needle always remains in the N-S direction

the magnetic needle and graduated circle do not move with the box

Removal of parallax, may be achieved by focussing A. the objective B. the eye-piece C. the objective and the eye-piece D. none of these.

the objective and the eye-piece

While rotating the theodolite in the horizontal plane, the bubble of the bubble tube takes up the same position in its tube, it indicates A. the rotation axis is vertical B. the trummion axis is horizontal C. the line of collimation is perpendicular to vertical axis D. none of the above

the rotation axis is vertical

The number of horizontal cross wires in a stadia diaphragm is A. one B. two C. three D. four

three

The apparent error on reversal is A. equal to the actual error B. twice the actual error C. thrice the actual error D. none of these.

twice the actual error

The least count of a vernier scale is A. sum of the smallest divisions of main and vernier scales B. value of one division of the primary scale divided by total number of divisions of vernier scale C. value of one division of vernier scale divided by total number of divisions of primary scale D. none of these.

value of one division of the primary scale divided by total number of divisions of vernier scale

Parallax bar measures A. Parallax B. Height C. Parallax difference D. Height difference

Parallax difference

The parallax equation Δp = BmΔh/H - h is applicable to entire overlap of the photographs only if parallax is measured A. Normal to base line B. Parallel to base line C. Both (A) and (B) D. Neither (A) nor (B)

Parallel to base line

A plate parallel is the line on the plane of the negative A. Parallel to the principal line B. Perpendicular to the principal line C. Along the bisector of the angle between the principal line and a perpendicular line through principal plane D. None of these

Perpendicular to the principal line

The point where vertical line passing through the perspective centre intersects the plane of the photograph, is known as A. Photo plumb point B. Plumb point C. Nadir point D. Isocenter

Photo plumb point

The station where observations are not made, but the angles at the station are used in triangulation series, is known as A. Satellite station B. Subsidiary station C. Pivot station D. Main station

Pivot station

The station which is selected close to the main triangulation station, to avoid intervening obstruction, is not known as A. Satellite station B. Eccentric station C. False station D. Pivot station

Pivot station

The chord of a curve less than peg interval, is known as A. Small chord B. Sub-chord C. Normal chord D. Short chord

Sub-chord

For which of the following permanent adjustments of theodolite, the spire test is used ? A. adjustment of plate levels B. adjustment of line of sight C. adjustment of horizontal axis D. adjustment of altitude bubble and vertical index frame

adjustment of horizontal axis

Three point problem can be solved by A. Tracing paper method B. Bessels method C. Lehman's method D. all of the above

all of the above

Mistakes which may produce a very serious effect upon the final results arise due to A. in attention B. in experience C. carelessness D. all of these.

all of these.

The additional lines which are measured to show the correctness of the chain surveying are called: A. check clines B. proof lines C. tie lines D. all of these.

all of these.

The rise and fall method of reduction of levels, provides a check on A. back sights B. fore sights C. intermediate sights D. all of these.

all of these.

In horizontal angles, the error due to imperfect levelling of the plate bubble is A. large when sights are nearly level B. large for long sights C. less for steeply inclined sights D. large for steeply inclined sights.

large for steeply inclined sights.

Straight, parallel and widely spaced contours represent A. a steep surface B. a flat surface C. an inclined plane surface D. curved surface.

an inclined plane surface

If i is the stadia distance, f is the focal length and d is the distance between the objective and vertical axis of the techeometer, the multiplying constant, is A. f/i B. i/f C. (f + d) D. f/d.

f/i

The following sights are taken on a "turning point" A. foresight only B. backsight only C. foresight and backsight D. foresight and intermediate sight

foresight and backsight

Perpendicular offset from a tangent to the junction of a transition curve and circular curve is equal to A. shift B. twice the shift C. thrice the shift D. four times the shift.

four times the shift.

The prismatic compass and surveyor's compass A. give whole circle bearing (WCB) of a line and quadrantal bearing (QB) of a line respectively B. both give QB of a line and WCB of a line C. both give QB of a line D. both give WCB of a line

give whole circle bearing (WCB) of a line and quadrantal bearing (QB) of a line respectively

Reduced bearing of a line is an angle between A. north line and given line measured clockwise B. north line and given line measured anticlockwise C. east or west and the given line D. given line and the part of the meridian whether N end or S end, lying adjacent to it.

given line and the part of the meridian whether N end or S end, lying adjacent to it.

Bergchrund is a topograhical feature in A. plains B. water bodies C. hills D. glaciated region

glaciated region

Diurnal variation of magnetic declination is A. greater at equator than nearer the poles B. less at equator than nearer the poles C. less in summer than in winter D. same at all latitudes and during different months..

less at equator than nearer the poles

The line normal to the plumb line is known as A. horizontal line B. level line C. datum line D. vertical line.

level line

In a spherical triangle ABC, right angled at C, sin b equals A. sin a cos A B. cos a sin A C. tan a cot A D. cot A tan a

tan a cot A

At lower culmination, the pole star moves A. Eastward B. Westward C. Northward D. Southward

Eastward

Correct distance obtained by an erroneous chain is: A. Erroneous chain length/correct chain length x Observer distance B. correct chain length/Erroneous chain length x Observer distance C. correct chain length/Observer distance x Erroneous chain length D. none of these.

Erroneous chain length/correct chain length x Observer distance

The great circle which passes through the zenith, nadir and the poles, is known as A. Meridian B. Vertical circle C. Prime vertical D. None of these

Meridian

Latitude of a place is the angular distance from A. Greenwich to the place B. Equator to the poles C. Equator to the nearer pole D. None of these

None of these

The equation which is obtained by multiplying each equation by the coefficient of its unknowns and by adding the equations thus formed, is known as A. Observation equation B. Conditional equation C. Normal equation D. None of these

Normal equation

The Trapezoidal rule of volumes V of an embankment divided into a number of sections equidistant D, is given by A. V = [(A1 + An)/2+A2 + A3 + ... + An - 1] B. V = [(A1 + An)/4+A2 + A3 + ... + An - 1] C. V = [A1 + An + 2(A2 + A4 + ... + An - 1) + 4(A3 + A5 + ... + An - 2)] D. V = [A1 + An + 4(A2 + A4 + ... + An - 1) + 4(A3 + A5 + ... + An - 2)].

V = [(A1 + An)/2+A2 + A3 + ... + An - 1]

Contour lines of different elevations can unite to form one line, only in the case of A. a vertical cliff B. a saddle C. a water shed line D. a hill top.

a vertical cliff

The allowable length of an offset depends upon the A. degree of accuracy required B. method of setting out the perpendiculars and nature of ground C. scale of plotting D. all of the above

all of the above

For high sensivity of the bubble tube A. a liquid of low viscosity is used B. a liquid of low surface tension is used C. the bubble space should be long D. the bubble tube should not be too narrow E. all the above.

all the above.

Geodetic surveying is undertaken A. for production of accurate maps of wide areas B. for developing the science of geodesy C. making use of most accurate instruments and methods of observation D. for determination of accurate positions on the earth's surface of system of control points E. all the above.

all the above.

Pick up the correct statement from the following : A. If the slope of the curve of a mass diagram in the direction of increasing abscissa is downward, it indicates an embankment B. The vertical distance between a maximum ordinate and the next forward maximum ordinate represents the whole volume of the embankment C. The vertical distance between a minimum ordinate and the next forward maximum ordinate represents the whole volume of a cutting D. The area enclosed by a loop of the curve and balancing line, measures the haul in that direction. E. all the above.

all the above.

Pick up the correct statement from the following : A. if the image of the object does not fall on the plane of the cross-lines, parallax exists B. parallax has nothing to do with the eyepiece C. the eyepiece is adjusted for clear vision of the cross hairs D. all the above.

all the above.

Pick up the correct statement from the following : A. spherical aberration may be reduced by diminishing the aperture B. spherical aberration may be minimised by replacing the single lens by a combination of the lenses. C. in telescope objectives, a combination of convex lens and concave lens is used. D. in eyepieces, two plano-convex lenses placed at a certain distance apart are used E. all the above.

all the above.

Pick up the correct statement from the following : A. the apparent error on reversal is twice the actual error B. the correction may be made equal to half the observed discrepancy. C. the good results may be obtained from a defective instrument by reversing and taking the mean of two erroneous results D. all the above.

all the above.

Resolving power of a telescope depends on A. the diameter of the aperture B. the pupil aperture of the eye C. the diameter of the object glass D. all the above.

all the above.

The correction for sag is A. always additive B. always subtractive C. always zero D. sometimes additive and sometimes subtractive

always subtractive

In chain surveying, perpendiculars to the chain line, are set out by A. a theodolite B. a prismatic compass C. a level D. an optical square

an optical square

The direction of steepest slope on a contour, is A. along the contour B. at an angle of 45° to the contour C. at right angles to the contour D. none of these.

at right angles to the contour

For true difference in elevations between two points A and B, the level must be set up A. at any point between A and B B. at the exact mid point of A and B C. near the point A D. near the point B.

at the exact mid point of A and B

The smaller horizontal angle between the true meridian and a survey line, is known A. declination B. bearing C. azimuth D. dip.

azimuth

The first reading from a level station is A. foresight B. intermediate sight C. back-sight D. any sight.

back-sight

The operation of making the algebraic sum of latitudes and departures of a closed traverse, each equal to zero, is known A. balancing the sights B. balancing the departures C. balancing the latitudes D. balancing the traverse.

balancing the traverse.

In levelling operation A. if second reading is more than first, it represents a rise B. if first reading is more than second, it represents a rise C. if first reading is less than second, it represents a fall D. if second reading is less than first, it represents a fall E. both (b) and (c).

both (b) and (c).

If altitude bubble is provided both on index frame as well as on telescope of a theodolite, then the instrument is levelled with reference to i) altitude bubble on index frame ii) altitude bubble on index frame if it is to be used as a level iii) altitude bubble on telescope iv) altitude bubble on telescope if it is to be used as a level The correct answer is A. only (i) B. both (i) and (iv) C. only (iii) D. both (ii) and (iii)

both (i) and (iv)

The sensitiveness of a level tube decreases if A. radius of curvature of its inner surface is increased B. diameter of the tube is increased C. length of the vapour bubble is increased D. both viscosity and surface tension are increased.

both viscosity and surface tension are increased.

The representation of general topography of a very flat terrain is possible only A. by drawing contours at large interval B. by drawing contours at small interval C. by giving spot levels at large interval D. by giving spot levels to salient features at close interval.

by giving spot levels to salient features at close interval.

A metallic tape is made of A. steel B. invar C. linen D. cloth and wires

cloth and wires

The constant vertical distance between two adjacent contours, is called A. horizontal interval B. horizontal equivalent C. vertical equivalent D. contour interval E. contour gradient.

contour interval

The boundary of water of a still lake, represents A. level surface B. horizontal surface C. contour line D. a concave surface.

contour line

An imaginary line joining the points of equal elevation on the surface of the earth, represents A. contour surface B. contour gradient C. contour line D. level line E. none of these.

contour linej

True meridian of different places A. converge from the south pole to the north pole B. converge from the north pole to the south pole C. converge from the equator to the poles D. run parallel to each other.

converge from the equator to the poles

If 'δ' is the declination of the star and 'φ' is the latitude of the observer then the hour angle of the star at elongation is given by A. sin H = tan φ . cot δ B. cos H = tan φ . cot δ C. tan H = tan φ . cot δ D. None of these

cos H = tan φ . cot δ

The latitude of a traverse leg is obtained by multiplying its length by A. tangent of its reduced bearing B. sign of its reduced bearing C. cosine of its reduced bearing D. cosecant of its reduced bearing.

cosine of its reduced bearing

A uniform slope was measured by the method of stepping. If the difference in level between two points is 1.8 m and the slope distance between them is 15 m, the error is approximately equal to A. cumulative, + 0.11 m B. compensating, ± 0.11 m C. cumulative, - 0.11 m D. none of these

cumulative, + 0.11 m

In geodetic surveys higher accuracy is achieved, if A. curvature of the earth surface is ignored B. curvature of the earth surface is taken into account C. angles between the curved lines are treated as plane angles D. none of these.

curvature of the earth surface is taken into account

If the horizontal distance between the staff point and the point of observation is d, then the error due to curvature of earth is proportional to A. d B. 1/d C. d2 D. 1/d2

d2

The distance between steps for measuring down hill to obtain better accuracy A. decreases with decrease of slope B. increases with increase of slope C. decreases with increase of slope D. decreases with decrease of weight of the chain.

decreases with increase of slope

The angle between the prolongation of the preceding line and the forward line of a traverse is called A. deflection angle B. included angle C. direct angle D. none of the above

deflection angle

Rankine's deflection angle in minutes is obtained by multiplying the length of the chord by A. degree of the curve B. square of the degree of the curve C. inverse of the degree of the curve D. none of these.

degree of the curve

If D is the degree of the curve of radius R, the exact length of its specified chord, is A. radius of the curve x sine of half the degree B. diameter of the curve x sine of half the degree C. diameter of the curve x cosine of half the degree D. diameter of the curve x tangent of half the degree.

diameter of the curve x sine of half the degree

The vertical angle between longitudinal axis of a freely suspended magnetic needle and a horizontal line at its pivot, is known A. declination B. azimuth C. dip D. bearing.

dip

The construction of optical square is based, on the principle of optical A. reflection B. refraction C. double refraction D. double reflection.

double reflection.

The difference of levels between two stations A and B is to be determined. For best results, the instrument station should be A. equidistant from A and B B. closer to the higher station C. closer to the lower station D. as far as possible from the line AB

equidistant from A and B

Which one of the following mistakes/errors may be cumulative + or - : A. bad ranging B. bad straightening C. erroneous length of chain D. sag.

erroneous length of chain

Which of the following errors is not eliminated by the method of repetition of horizontal angle measurement ? A. error due to eccentricity of verniers B. error due to displacement of station signals C. error due to wrong adjustment of line of collimation and trunnion axis D. error due to inaccurate graduation

error due to displacement of station signals

Which of the following errors can be eliminated by taking mean of bot face observations ? A. error due to imperfect graduations B. error due to eccentricity of verniers C. error due to imperfect adjustment of plate levels D. error due to line of collimation not being perpendicular to horizontal axis

error due to line of collimation not being perpendicular to horizontal axis

Ranging in chain survey means A. looking at an isolated point not on the line B. establishing an intermediate point on the line C. determining the distance between end points D. determining the offset distance E. none of these

establishing an intermediate point on the line

Ranging is an operation of A. reconnaissance B. judging the distance C. determination of slope D. establishing intermediate points between terminals.

establishing intermediate points between terminals.

Deviation of the actual road gradient from the proposed contou'r gradient up hill side, involves A. embankment on the centre line B. excavation on the centre line C. earth work on the centre line D. none of these.

excavation on the centre line

The scale of a vertical photograph of focal length 'f' taken from height of 'H' metres above M.S.L., at a point of reduced level 'h', is A. f/H B. f/(H + h) C. f/(H - h) D. (H - h)/f

f/(H - h)

H' is the flying height above mean ground level and 'f' is the principal distance of a vertical photograph. The mean scale of the photographs is A. H. f B. H/f C. f/H D. H + f

f/H

The scale of a tilted photograph of focal length f taken from an altitude H, along the plate parallel through principal point is A. f/H sec θ B. f sec θ/H C. f/H D. f/H cos ½θ

f/H sec θ

The product of the distances of plumb point and horizon point of a vertical photograph from its principal point, is A. f2 B. 2f2 C. 3f2 D. ½f

f2

The rate of change of parallax dp/dh with respect to change in h, may be expressed as A. fB/(H - h) B. fB/(H - h)² C. fB/(H + h) D. fB/(H + h)²

fB/(H - h)²

The systematic errors which persist and have regular effects in the performance of a survey operation, are due to A. carelessness B. faulty instrument C. inattention D. none of these.

faulty instrument

In the double application of principle of reversion, the apparent error is A. equal to true error B. half the true error C. two times the true error D. four times the true error

four times the true error

The main principle of surveying is to work A. from part to the whole B. from whole to the part C. from higher level to the lower level D. from lower level to higher level.

from whole to the part

The accuracy of measurement in chain surveying, does not depend upon A. length of the offset B. scale of the plotting C. importance of the features D. general layout of the chain lines.

general layout of the chain lines.

Surveys which are carried out to provide a national grid of control for preparation of accurate maps of large areas, are known A. plane surveys B. geodetic surveys C. geographical surveys D. topographical surveys.

geodetic surveys

The surface of zero elevation around the earth, which is slightly irregular and curved, is known as A. mean sea level B. geoid surface C. level surface D. horizontal surface.

geoid surface

Intersection method of detailed plotting is most suitable for A. forests B. urban areas C. hilly areas D. plains

hilly areas

The diaphragm of a stadia theodolite is fitted with two additional A. horizontal hairs B. vertical hairs C. horizontal and two vertical hairs D. none of these.

horizontal hairs

If the plane table is not horizontal in a direction at right angles to the alidade, the line of sight is parallel to the fiducial edge only for A. horizontal sights B. inclined sights upward C. inclined sight downward D. none of these.

horizontal sights

If v, t and f/H are the ground speed of the aircraft, the shutter speed of the camera and the scale of the photograph respectively, then the amount of image displacement A. i = v. t. H/f B. i = v. f/t. H C. i = v. t. (f/H) D. i = t. H/v. f

i = v. t. (f/H)

Cross hairs in surveying telescopes, are fitted A. in the objective glass B. at the centre of the telescope C. at the optical centre of the eye piece D. in front of the eye piece.

in front of the eye piece.

The sensitivity of a bubble tube can be increased by A. increasing the diameter of the tube B. decreasing the length of bubble C. increasing the viscosity of liquid D. decreasing the radius of curvature of tube

increasing the diameter of the tube

The line of collimation method of reduction of levels, does not provide a check on A. intermediate sights B. fore sights C. back sights D. reduced levels.

intermediate sights

The power of a lens A. is reciprocal of its focal length B. is positive if it is a convex lens C. is negative if it is a concave lens D. is measured in diopter.

is measured in diopter.

The intercept of a staff A. is maximum if the staff is held truly normal to the line of sight. B. is minimum if the staff is held truly normal to the line of sight. C. decreases if the staff is tilted away from normal D. increases if the staff is tilted towards normal

is minimum if the staff is held truly normal to the line of sight.

For accurate work, the steel band should always be used in preference to chain because the steel band A. is lighter than chain B. is easier to handle C. is practically inextensible and is not liable to kinks when in use D. can be easily repaired in the field

is practically inextensible and is not liable to kinks when in use

Imaginary line passing through points having equal magnetic declination is termed as A. isogon B. agonic line C. isoclinic line D. none of these.

isogon

If the chain line which runs along N-S direction is horizontal and the ground in E-W direction is sloping A. it is possible to set offsets correctly on east side B. it is possible to set offsets correctly on east side C. it is not possible to set offsets correctly on west side D. it is possible to set offsets correctly on both sides.

it is possible to set offsets correctly on both sides.

Hydrographic surveys deal with the mapping of A. large water bodies B. heavenly bodies C. mountaineous region D. canal system E. movement of clouds.

large water bodies

The orthographical projection of a traverse leg upon the reference meridian, is known as A. departure of leg B. latitude to the leg C. co-ordinate of the leg D. bearing of the leg.

latitude to the leg

In an adjusted level, when the bubble is central, the axis of the bubble tube becomes parallel to A. line of sight B. line of collimation C. axis of the telescope D. None of these.

line of sight

Which of the following is not used in measuring perpendicular offsets ? A. line ranger B. steel tape C. optical square D. cross staff

line ranger

It θ is the probable error of an observed bearing of a line of length l, the error over the whole length of the traverse of n lines of length l is A. l√n B. θ/l√n C. θ 3√n D. (1/3)θ √n

l√n

The horizontal angle between true meridian and magnetic meridian, is known A. bearing B. magnetic declination C. dip D. convergence.

magnetic declination

The ratio of the angles subtended at the eye, by the virtual image and the object, is known as telescope's A. resolving power B. brightness C. field of view D. magnification.

magnification

A clinometer is used for A. measuring angle of slope B. correcting line of collimation C. setting out right angles D. defining natural features.

measuring angle of slope

For preparation of a contour plan for a route survey A. method of squares is used B. method of trace contour is used C. method of cross profile is used D. indirect method of contouring is used.

method of cross profile is used

Which of the following methods of offsets involves less measurement on the ground? A. method of perpendicular offsets B. method of oblique offsets C. method of ties D. all involve equal measurement on the ground

method of perpendicular offsets

Horizontal distances obtained tacheometerically are corrected for A. slope correction B. temperature correction C. refraction and curvature correction D. all the above.

refraction and curvature correction

You have to observe an included angle with better accuracy than what is achievable by a vernier, you will prefer the method of A. repetition B. reiteration C. double observations D. exactness.

repetition

Location of contour gradient for a high way is best set out from A. ridge down the hill B. saddle down the hill C. bottom to the ridge D. bottom to the saddle.

saddle down the hill

In a precision traverse, included angles are measured by setting the vernier A. to read zero exactly on back station B. to read 5° exactly on back station C. some where near zero and reading both verniers on back station D. all the above.

some where near zero and reading both verniers on back station

Benchmark is established by A. hypsometry B. barometric levelling C. spirit levelling D. trigonometrical levelling

spirit levelling

If the length of a chain is found to be short on testing, it can be adjusted by A. straightening the links B. removing one or more small circular rings C. closing the joints of the rings if opened out D. all of the above

straightening the links

The process of turning the telescope about the vertical axis in horizontal plane is known as A. transiting B. reversing C. plunging D. swinging

swinging

Under ordinary conditions, the precision of a theodolite traverse is affected by A. systematic angular errors B. accidental linear errors C. systematic linear errors D. accidental angular errors.

systematic linear errors

The method generally preferred to for contouring an undulating area, is A. chain surveying B. plane table surveying C. tacheometrical surveying D. compass surveying.

tacheometrical surveying

Check lines (or proof lines) in Chain Surveying, are essentially required A. to plot the chain lines B. to plot the offsets C. to indicate the accuracy of the survey work D. to increase the out-turn

to indicate the accuracy of the survey work

Surveys which are carried out to depict mountains, rivers, water bodies, wooded areas and other cultural details, are known as A. cadastral surveys B. city surveys C. topographical surveys D. guide map surveys E. plane surveys.

topographical surveys

The co-ordinate of a point measured perpendicular to the parallel, is called A. total latitude B. meridian distance C. total departure D. consecutive co-ordinate.

total latitude

Overturning of vehicles on a curve can be avoided by using A. compound curve B. vertical curve C. reverse curve D. transition curve

transition curve

The distance between terminal points computed from a subsidiary traverse run between them, is generally known, as A. traverse leg B. a base C. traverse base D. all the above.

traverse base

A bearing of a line is also known as A. magnetic bearing B. true bearing C. azimuth D. reduced bearing

true bearing

Ramsden eye-piece consists of A. two convex lenses short distance apart B. two concave lenses short distance apart C. one convex lens and one concave lens short distance apart D. two plano-convex lenses short distance apart, with the convex surfaces facing each other.

two plano-convex lenses short distance apart, with the convex surfaces facing each other.

To orient a plane table at a point with two inaccessible points, the method generally adopted, is A. intersection B. resection C. radiation D. two point problem.

two point problem.

While working on a plane table, the correct rule is : A. Draw continuous lines from all instrument stations B. Draw short rays sufficient to contain the points sought C. Intersection should be obtained by actually drawing second rays D. Take maximum number of sights as possible from each station to distant objects.

Draw short rays sufficient to contain the points sought

The distance between the point of intersection of an up grade + g1% and downgrade g2% and the highest point of the vertical curve of length L, is A. L(g1 - g2)/400 B. L(g1 + g2)/400 C. L(g1 + g2)/800 D. L(g1 - g2)/800

L(g1 - g2)/800

After fixing the plane table to the tripod, the main operations which are needed at each plane table station are (i) Levelling (ii) Orientation (iii) Centering The correct sequence of these operations is A. (i), (ii), (iii) B. (i), (iii), (ii) C. (iii), (i), (ii) D. (ii), (iii), (i)

(i), (iii), (ii)

For a tacheometer the additive and multi-plying constants are respectively A. 0 and 100 B. 100 and 0 C. 0 and 0 D. 100 and 100

0 and 100

The sag of 50 m tape weighing 4 kg under 5 kg tension is roughly A. 0.043 m B. 0.053 m C. 0.063 m D. 0.073 m E. 0.083 m

0.083

Assuming human normal vision distance 25 cm, smallest measurable angle 20", and intraocular distance 6.5 cm, the smallest depth to be discerned is A. 0.1 mm B. 0.5 mm C. 1.00 mm D. 1.1 mm

0.1 mm

The scale of the photography taken from a height of 300 m, with a camera of focal length 15 cm, is A. 1 : 10,000 B. 1 : 15,000 C. 1 : 20,000 D. 1 : 30,000

1 : 20,000

23 cm × 23 cm photographs are taken from a flying height with a camera of focal length of 3600 m and 15.23 cm respectively. A parallax difference of 0.01 mm represents A. 1 m B. 2 m C. 4 m D. 8 m

1 m

The solar tidal force divided by lunar tidal force is A. 1/3 B. 1/2 C. 3/4 D. 5/4

1/2

The probable error of the adjusted bearing at the middle is A. 1/2 r√n B. 1/3 r√n C. 1/4 r√n D. 1/5 r√n

1/2 r√n

Stadia techeometry was discovered by James Watt in the year. A. 1670 B. 1770 C. 1870 D. 1900.

1770

The sum of the interior angles of a geometrical figure laid on the surface of the earth differs from that of the corresponding plane figure only to the extent of one second for every A. 100 sq. km of area B. 150 sq. km of area C. 200 sq. km of area D. none of these.

200 sq. km of area

If Δ is the angle of deflection of a simple curve of radius R, the length of its long chord, is A. R cos Δ/2 B. 2R cos Δ/2 C. R sin Δ/2 D. 2R sin Δ/2

2R sin Δ/2

If the length of a chain line along a slope of θ° is l, the required slope correction is A. 2l cos2 θ/2 B. 2l sin2 θ/2 C. l tan2 θ/2 D. l cos2 θ/2.

2l sin2 θ/2

In a lemniscate curve the ratio of the angle between the tangent at the end of the polar ray and the straight, and the angle between the polar ray and the straight, is A. 2 B. 3 C. 4 D. 5 E. 3/2

3/2

Invar tapes used for measuring base lines, is made of nickel-iron alloy containing nickel A. 24 % B. 36 % C. 40 % D. 60 %

36 %

The altitudes of a circumpolar star at culminations are 70° and 10°, both culminations being north of zenith. The latitude of the place, is A. 80° B. 70° C. 60° D. 40°

40°

The staff reading at a distance of 80 m from a level with the bubble at its centre is 1.31 m. When the bubble is moved by 5 divisions out of the centre, the reading is 1.39 m. The angular value of the one division of the bubble, is A. 28.8 secs B. 41.25 secs C. 14.52 secs D. 25.05 E. none of these

41.25 secs

Keeping the instrument height as 1 1/2 m, length of staff 4 m, the up gradient of the ground 1 in 10, the sight on the up slope must be less than A. 25 cm B. 20 m C. 45 m D. 10 m

45 m

The radius of a simple circular curve is 300 m and length of its specified chord is 30 m. The degree of the curve is A. 5.73° B. 5.37° C. 3.57° D. 3.75°.

5.73° R = 1718.9/D. R: Radius of curve. D: Degree of curve. D = 1718.9/R. D = 5.73°.

In a telescope the object glass of focal length 14 cm, is located at 20 cm from the diaphragm. The focussing lens is midway between them when a staff 16.50 m away is focussed. The focal length of the focussing lens, is A. 5.24 cm B. 6.24 cm C. 7.24 cm D. 8.24 cm

7.24 cm I/f = 1/ f1 + 1/f2. = 1/14 +1/16.50. 1/f = 0.314. F = 7.24.

The displacement of the pictured position of a point of h elevation on a vertical photograph taken with a camera of 30 cm focal length, from an altitude of 3000 m, is A. 4.4 mm B. 5.5 mm C. 6.5 mm D. 7.5 mm

7.5 mm

The bearing of AB is 190° and that of CB is 260° 30'. The included angle ABC, is A. 80° 30' B. 99° 30' C. 70° 30' D. none of these

70° 30'

The flying height of the camera is 1,000 m above mean ground level, the distance of the top of a building from a nadir point is 10 cm and the relief displacement of building is 7.2 mm. The height of the building, is A. 52 m B. 62 m C. 72 m D. 82 m

72 m

If the intercept on a vertical staff is ob-served as 0.75 m from a tacheometer, the horizontal distance between tacheometer and staff station is A. 7.5 m B. 25 m C. 50 m D. 75 m

75 m

ABCD is a rectangular plot of land. If the bearing of the side AB is 75°, the bearing of DC is A. 75° B. 255° C. 105° D. 285°

75°

To set out a parallel from a given inccessible point to a given line AB, the following observations and made Distance AB and angle PAM = a and angle PBA = b are measured where Mis a point on the line BA produced. The perpendicular to the desired parallel line from A and B are : A. AB/(cot b- cot a) B. AB/(cos b- cos a) C. AB/(cot a- cot b) D. AB/(cot a- cos b)

AB/(cot b- cot a)

α, β are the horizontal angles measured at the ends of a base line AB to a hill top whose angle of elevation from station A is θ°. The height of the hill top above the trunnion axis of the theodolite station, is A. ABsinβtanθ/sin[180°-(α+β)] B. ABsinθtanα/sin[180°-(α+θ)] C. ABsinθtanβ/sin[180°-(α+β)] D. ABsinαtanθ/sin[180°-(α+β)]

ABsinαtanθ/sin[180°-(α+β)]

The properties of autogenous curve for automobiles are given by A. true spiral B. cubic parabola C. Bernoulli's Lemniscate D. clothoid spiral.

Bernoulli's Lemniscate

According to Napier's Rules of circular parts for a right angled triangle, sine of middle part equals the product of A. Tangents of two adjacent parts B. Sines of two adjacent parts C. Cosines of two adjacent parts D. Both (A) and (B) above

Both (A) and (B) above

The sun's declination remains north between A. March 21 to June 21 B. June 21 to September 21 C. September 21 to December 21 D. Both (A) and (B) of above

Both (A) and (B) of above

Longitude of a place is the angular distance between the meridian of the place and A. The standard meridian B. The International Date Line C. That of Greenwich D. Both (A) and (C) of above

Both (A) and (C) of above

The point at which sun's declination changes from north to south, is known as A. First point of Aeries B. First point of Libra C. Vernal Equinox D. Both (B) and (C) of the above

Both (B) and (C) of the above

Triangulation surveys are carried out for providing A. Planimetric control B. Height control C. Both planimetric and height control D. None of these

Both planimetric and height control

Pick up the correct statement from the following. The difference between the longitudes of the places is obtained. A. By subtracting their longitudes if places are in the same hemisphere B. By adding their longitudes if places are in the different hemispheres C. By subtracting the sum of their longitudes exceeding 180° from 360° if places are in different hemispheres D. All the above

By subtracting the sum of their longitudes exceeding 180° from 360° if places are in different hemispheres

Pick up the incorrect statement from the following: A. Correction for refraction is always negative B. Correction for parallax is always positive C. Correction for semi-diameter is always negative D. Correction for dip is always negative

Correction for semi-diameter is always negative

Homologous points are A. Opposite corners of a photograph B. Nodal points of the camera lens C. Corresponding points on the ground and photograph D. Plumb points of stereo pair of photographs

Corresponding points on the ground and photograph

The great circle along which the sun appears to trace on the celestial sphere with earth as centre during the year, is called A. Equator B. Celestial equator C. Ecliptic D. None of these

Ecliptic

G.M.T. corresponding to given mean time, equals A. L.M.T. - East longitude in time B. L.M.T. + East longitude in time C. L.M.T. - West longitude in time D. None of these

L.M.T. - East longitude in time

Pick up the incorrect statement from the following. High oblique photographs A. May have tilt up to 30° B. May include the image of the horizon C. May not include the image of the horizon D. None of these

None of these

Pick up the correct statement from the following: A. One degree of longitude has greatest value at the equator B. One degree of longitude has greatest value at the poles C. One degree of longitude has the same value everywhere D. One degree of latitude decreases from the equator to the poles

One degree of longitude has greatest value at the equator

If S is the sum of three angles of a spherical triangle, the spherical excess equals A. S - 90° B. S - 180° C. S - 270° D. S - 360°

S - 180°

The rise and fall method of levelling provides a complete check on A. backsight B. intermediate sight C. foresight D. all of the above

all of the above

Which of the following introduces an error of about 1 in 1000 if 20 m chain is used A. length of chain 20 mm wrong B. one end of the chain 0.9 m off the line C. one end of chain 0.9 m higher than the other D. middle of the chain 0.45 m off the line E. all the above.

all the above.

While surveying a plot of land by plane tabling, the field observations A. and plotting proceed simultaneously B. and plotting do not proceed simultaneously C. and recorded in field books to be plotted later D. all the above.

and plotting proceed simultaneously

Angles to a given pivot station observed from a number of traverse stations when plotted, the lines to the pivot station intersect at a common point A. angular measurements are correct and not the linear measurements B. linear measurements are correct and not the angular measurements C. angular and linear measurements are correct and not the plotting of traverse D. angular and linear measurements and also plotting of the traverse are correct.

angular and linear measurements and also plotting of the traverse are correct.

For taking offsets with an optical square on the right hand side of the chain line, it is held A. by right hand upside down B. by left hand upright C. by right hand upright D. by left hand up side down.

by left hand upright

In quadrantal bearing system, back bearing of a line may be obtained from its forward bearing, by A. adding 180°, if the given bearing is less than 180° B. subtracting 180°, if the given bearing, is more than 180° C. changing the cardinal points, i.e. substituting N for S and E for W and vice-versa D. none of these.

changing the cardinal points, i.e. substituting N for S and E for W and vice-versa

In an internal focussing type of telescope, the lens provided is A. concave B. convex C. plano-convex D. plano-concave

concave

An internal focussing type surveying telescope, may be focussed by the movement of A. objective glass of the telescope B. convex-lens in the telescope C. concave lens in the telescope D. plano-convex lens in the telescope.

concave lens in the telescopes for you

An imaginary line lying throughout on the surface of the earth and preserving a constant inclination to the horizontal, is called A. contour line B. contour gradient C. level line D. line of gentle scope.

contour gradient

Horizontal distances obtained by thermometric observations A. require slope correction B. require tension correction C. require slope and tension corrections D. do not require slope and tension corrections

do not require slope and tension corrections

The chaining on sloping ground is A. easier along the falling gradient B. easier along the up gradient C. equally convenient along falling as well as up gradient D. all the above.

easier along the falling gradient

The theodolites used for making tacheometric observations by optical wedge system, are A. provided with stadia hairs in front of eye piece B. not provided with stadia hairs at all C. fitted with a glass wedge inside the telescope D. fitted with a glass wedge in front of telescope.

fitted with a glass wedge in front of telescope.

α and β are the angles subtended by a point of elevation h at their air station with respective plumb points. Photo scale and focal length of the lens being 'S' and 'f' respectively. Parallax displacement of the point due to relief, is A. h tan α/S B. h tan β/S C. h (tan α + tan β)/S D. h (tan α - tan β)/S

h (tan α + tan β)/S

The real image of an object formed by the objective, must lie A. in the plane of cross hairs B. at the centre of the telescope C. at the optical centre of the eye-piece D. anywhere inside the telescope.

in the plane of cross hairs

If the staff is not held vertical at a level¬ling station, the reduced level calculated from the observation would be A. true R.L. B. more than true R.L. C. less than true R.L. D. none of the above

less than true R.L.

The 'fix' of a plane table from three known points, is good, if A. middle station is nearest B. middle station is farthest C. either the right or left station is nearest D. none of these.

middle station is nearest

In case of reduction of levels by the height of instrument method, A. ∑ B.S. - ∑ F.S. = difference in R.L.S of the first station and last station B. ∑ (R.L. + I + F.S.) - first R.L = ∑ (H.I. + No. of R.L.s.) C. both (a) and (b) above D. neither (a) nor (b).

neither (a) nor (b).

The length of a chain is measured from A. centre of one handle to centre of other handle B. outside of one handle to outside of other handle C. outside of one handle to inside of other handle D. inside of one handle to inside of other handle

outside of one handle to outside of other handle

An ideal vertical curve to join two gradients, is A. circular B. parabolic C. elliptical D. hyperbolic E. none of these.

parabolic

The type of surveying which requires least office work is A. tacheomefry B. trigonometrical levelling C. plane table surveying D. theodolite surveying

plane table surveying

The area of any irregular figure of the plotted map is measured with A. pentagraph B. sextant C. clinometer D. planimeter E. optical square

planimeter

The instrument used for accurate centering in plane table survey is A. spirit level B. alidade C. plumbing fork D. trough compass

plumbing fork

The rise and fall method A. is less accurate than height of instrument method B. is not suitable for levelling with tilting levels C. provides a check on the reduction of intermediate point levels D. quicker and less tedious for large number of intermediate sights

provides a check on the reduction of intermediate point levels

The resection by two point problem as compared to three point problem A. gives more accurate problem B. takes less time C. requires more labour D. none of the above

requires more labour

The length of a traverse leg may be obtained by multiplying the latitude and A. secant of its reduced bearing B. sine of its reduced bearing C. cosine of its reduced bearing D. tangent of its reduced bearing.

secant of its reduced bearing

In a spherical triangle ABC right angled at C, sin b equals to A. sin c sin B B. cos c cos B C. tan c tan B D. sin c cos B

sin c sin B

Accurate measurement of deflection angles with a transit not properly adjusted may be made by A. setting the vernier A at zero at back station and then plunging the telescope B. setting the vernier A at zero at back station and turning the instrument to the forward station C. taking two back sights one with the telescope normal and the other with telescope inverted D. none of these.

taking two back sights one with the telescope normal and the other with telescope inverted

Systematic errors are those errors A. which cannot be recognised B. whose character is understood C. whose effects are cumulative and can be eliminated D. none of these.

whose effects are cumulative and can be eliminated

The maximum tolerance in a 20 m chain is A. ±2 mm B. ±3 mm C. ±5 mm D. ±8 mm

±2 mm

If Δ is the angle of deflection of the curve, T1 and T2 are its points of tangencies, the angle between the tangent at T1 and long chord T1 T2 will be A. Δ/4 B. Δ/3 C. Δ/2 D. Δ E. 2 Δ.

Δ/2

A lemniscate curve between the tangents will be transitional throughout if the polar deflection angle of its apex, is A. Δ/2 B. Δ/3 C. Δ/4 D. Δ/6

Δ/6

If L is the perimeter of a closed traverse, ΔD is the closing error in departure, the correction for the departure of a traverse side of length l, according to Bowditch rule, is A. ΔD x L/l B. ΔD x R/L C. L x l/ΔD D. ΔD x l/L

ΔD x l/L

If θ and δ be the latitude of a place and declination of a star respectively, the upper culmination of the star will be north of zenith if its zenith distance, is A. δ - θ B. θ - δ C. θ + δ D. (θ + δ)/2

δ - θ

If θ and δ be the latitude of an observer and declination of a heavenly body respectively, the upper culmination of the body will be south of zenith if its zenith distance, is A. δ - θ B. θ - δ C. θ + δ D. ½ (θ - δ)

θ - δ

A lemniscate curve between the tangents will be transitional throughout if the polar deflection angle of its apex, is A. △/2 B. △/3 C. △/4 D. △/5 E. △/6

△/6

In the cross-section method of indirect contouring, the spacing of cross-sections depends upon i) contour interval ii) scale of plan iii) characteristics of ground The correct answer is A. only (i) B. (i) and (ii) C. (ii) and (iii) D. (i), (ii) and (iii)

(i), (ii) and (iii)

The methods used for locating the plane table stations are i) radiation ii) traversing iii) intersection iv) resection The correct answer is A. (i) and (ii) B. (iii) and (iv) C. (ii) and (iv) D. (i) and (iii)

(ii) and (iv)

If the reduced bearing of a line AB is N60°W and length is 100 m, then the latitude and departure respectively of the line AB will be A. +50 m, +86.6 m B. +86.6 m, -50 m C. +50 m, -86.6 m D. +70.7 m, -50 m

+86.6 m, -50 m

A standard steel tape of length 30 m and cross-section 15 x 1.0 mm was standardised at 25°C and at 30 kg pull. While measuring a base line at the same temperature, the pull applied was 40 kg. If the modulus of elasticity of steel tape is 2.2 x 106 kg/cm2, the correction to be applied is A. - 0.000909 m B. + 0.0909 m C. 0.000909 m D. none of these

- 0.000909 m

The slope correction for a 3° slope for a length of 100 m, is A. -0.11 m B. -0.12 m C. -1.87 m D. -0.137 m

-0.137 m

The nearest star is so far away from the earth that the directions to it from two diametrically opposite points on the earth differs less than A. 0.01 second B. 0.001 second C. 0.0001 second D. None of these

0.0001 second

While setting a plane table at a station it was found that the error in centering was 30 cm away from the ray of length 40 m drawn from the station. If the scale of the plan is 1 cm = 2 cm, the displacement of the end of the ray in plan from the true position will be A. 0.02 cm B. 0.15 cm C. 02 cm D. 0.1 cm

0.15 cm

If the focal length of the object glass is 25 cm and the distance from object glass to the trunnion axis is 15 cm, the additive constant is A. 0.1 B. 0.4 C. 0.6 D. 1.33

0.4

The net ground area of a vertical photograph 20 cm × 20 cm on scale 1 : 10,000 having overlaps 60% and 30%, is A. 0.50 sq km B. 0.56 sq km C. 0.60 sq km D. 0.64 sq km

0.64 sq km

The nautical mile is the length of A. 1 minute of latitude B. 1 minute of longitude C. 1 degree of latitude D. 1 degree of longitude

1 minute of longitude

The operation of resection involves the following steps 1. rough orientation of the plane table 2. the three lines form a triangle of error 3. drawing lines back through the three control points 4. select a point in the triangle of error such that each ray is equally rotated either clockwise or anti clockwise 5. the points obtained by three rays is the correct location. The correct sequence is A. 1, 3, 2, 4, 5 B. 1, 2, 3, 4, 5 C. 1, 4, 3, 2, 5 D. 1, 4, 2, 3, 5

1, 3, 2, 4, 5

A dumpy level was set up at mid-point between pegs A and B, 80 m apart and the staff readings were 1.32 and 1.56. When the level was set up at a point 10 m from A on BA produced, the staff readings obtained at A and B were 1.11 and 1.39. The correct staff reading from this set up at S should be A. 1.435 B. 1.345 C. 1.425 D. none of these.

1.345

Accuracy of elevation of various points obtained from contour map is limited to A. 1/2 of the contour interval B. 1/4 th of the contour interval C. 1/3 rd of the contour interval D. 1/5 th of the contour interval.

1/2 of the contour interval

The 10 mm markings on a levelling staff placed at 20 m are separated by A. 1/1000 radian B. 1/1500 radian C. 1/2000 radian D. 1/2500 radian.

1/2000 radian

The difference in the lengths of an arc and its subtended chord on the earth surface for a distance of 18.2 km, is only A. 1 cm B. 5 cm C. 10 cm D. 100 cm

10 cm

Staff readings on pegs x and y from X station are 1.755 m and 2.850 m, and from station Y on staff head at Y and X are 0.655 m and 1.560 m. If reduced level of X is 105.5 m, the reduced level of Y is A. 104.0 m B. 104.5 m C. 105.0 m D. 105.5 m

104.5 m

The difference of height of two points whose parallax difference is 0.8 mm on a pair of stereo pair taken from a height 'H' is 100 m. If mean photo base is 95.2 mm, the flying height is A. 8,000 m B. 10,000 m C. 12,000 m D. 14,000 m

12,000 m

If the long chord and tangent length of a circular curve of radius R are equal the angle of deflection, is A. 30° B. 60° C. 90° D. 120° E. 150°.

120°

If the magnetic bearing of the sun at a place at noon in southern hemisphere is 167°, the magnetic declination at that place is A. 77° N B. 23° S C. 13° E D. 13° W

13° E

The method of surveying by triangulation was first introduced by the Dutchman Snell in A. 1600 B. 1615 C. 1630 D. 1650

1615

Longitudes are measured from 0° to A. 180° eastward B. 180° westward C. 180° east or westward D. 360° eastward

180° east or westward

International Date Line is located along A. Standard meridian B. Greenwich meridian C. Equator D. 180° longitude

180° longitude

The bearings of two traverse legs AB and BC are N52° 45' E and N34° 30' E respectively. The deflection angle is A. 18° 15' E B. 18° 15' N C. 18° 15' W D. 18° 15' R E. 18° 15' L

18° 15' L

The ratio of the linear displacement at the end of a line, subtended by an arc of one second to the length of the line, is A. 1:206 300 B. 1:3440 C. 1:57 D. 1:100.

1:206 300

The Polaris describes a small circle round the pole whose radius is approximately A. 1° B. 2° C. 3° D. 4°

1°

If the length of a transition curve to be introduced between a straight and a circular curve of radius 500 m is 90 m, the maximum deflection angle to locate its junction point, is A. 1°43' 08" B. 1°43' 18" C. 1°43' 28" D. 1°43' 38"

1°43' 18" The Maximum deflection angle of transition curve (in minutes)= (573.25*L^2)/(R*L). Therefore = (573.25*90*90)/(500*90). Answer = 103.18 minutes. Convert to degrees = 1° 43' 18". (1°= 60' ,1'= 60").

The ratio of the length of long chord and the tangent length of a circular curve of radius R deflecting through angle Δ, is A. sin Δ/2 B. cos Δ/2 C. tan Δ/2 D. 2 sin Δ/2 E. 2 cos Δ/2

2 cos Δ/2

Permanent adjustments of a level are A. 2 in number B. 3 in number C. 4 in number D. 6 in number

2 in number

The suitable contour interval for a map with scale 1 : 10000 is A. 2 m B. 5 m C. 10 m D. 20 m

2 m

If the length of a transition curve to be introduced between a straight and a circular curve of radius 500 m is 90 m, the maximum perpendicular offset for the transition curve, is A. 0.70 m B. 1.70 m C. 2.70 m D. 3.70 m E. 4.70 m

2.70

While measuring the distance between two points along upgrade with the help of a 20 m chain, the forward end of the chain is shifted forward through a distance A. 20 (sin θ - 1) B. 20 (cos θ - 1) C. 20 (sec θ - 1) D. 20 (cosec θ - 1).

20 (sec θ - 1)

A well conditioned triangle has no angle less than A. 20° B. 30° C. 45° D. 60°

30°

For a well-conditioned triangle, no angle should be less than A. 20° B. 30° C. 45° D. 60°

30°

If a star whose declination is 60° N culminates at zenith, its altitude at the lower culmination, is A. 10° B. 20° C. 30° D. 40°

30°

If deflection angles are measured in a closed traverse, the difference between the sum of the right-hand and that of the left hand angles should be equal to A. 0° B. 90° C. 180° D. 360°

360°

In a tropical year, the numbers of sidereal days are A. 365 B. 365.2224 C. 365.2422 D. 366.2422

366.2422

If the general ground level of any area is 10% of the flying height, the principal points may be used as the centers of radial directions for small scale mapping even in tilted photograph up to A. 1° B. 2° C. 3° D. 4°

3°

If 16 flight lines are run perpendicular to an area 30 km wide, their spacings on a photographical map on scale 1 : 50,000 , will be A. 1 cm B. 2 cm C. 3 cm D. 4 cm

4 cm

The angle of intersection of the two plane mirrors of an optical square is A. 30° B. 45° C. 60° D. 90°

45°

Number of links per metre length of a chain are A. 2 B. 5 C. 8 D. 10 E. 20

5

The longitudes of two places at latitude 60° N are 93° E and 97° W. Their departure is A. 5100 nautical miles B. 5700 nautical miles C. 120 nautical miles D. 500 nautical miles

5700 nautical miles

If α is the observed altitude, the refraction correction in seconds, is A. 58" cot α B. 58" tan α C. 58 sin α D. 58 cos α

58" cot α

During chaining along a straight line, the . leader of the party has 4 arrows in his hand while the follower has 6. Distance of the follower from the starting point is A. 4 chains B. 6 chains C. 120 m D. 180m

6 chains

the size of the plane-table is A. 750 mm × 900 mm B. 600 mm × 750 mm C. 450 mm × 600 mm D. 300 mm × 450 mm

600 mm × 750 mm

The altitudes of a circumpolar star at culminations are 70° and 10°, both culminations being north of zenith. The declination of the star, is A. 80° B. 70° C. 60° D. 50°

60°

The average eye base is assumed as A. 58 mm B. 60 mm C. 62 mm D. 64 mm

64 mm

The combined effect of curvature and refraction over a distance L kilometres is A. 67.2 L2 mm B. 76.3 L2 mm C. 64.5 L2 mm D. none of these.

67.2 L2 mm

If α, H, A and δ be the altitude, hour angle, azimuth and declination of a circumpolar star at its elongation, in latitude λ, the following relation holds good A. cos H = tan λ/tan δ B. sin α = sin λ/sin δ C. sin A = cos δ/cos λ D. All the above

All the above

In a truly vertical photograph, A. Principal point coincides the isocenter B. Iso-centre coincides the plumb point C. Plumb point coincides the principal point D. All the above

All the above

In triangulation surveys A. The area is divided into triangular figures B. Control stations are located from which detailed surveys are carried out C. Sides are not measured excepting the base line D. All the above

All the above

On vertical photographs, height displacement is A. Positive for points above datum B. Negative for points below datum C. Zero for points vertically below the air station D. All the above

All the above

Pick up the correct statement for horizontal photographs. A. Parallel lines do not appear parallel in central projection B. The two sides of a road meet at the vanishing point C. The lines parallel to the negative plane are projected as parallel lines D. All the above

All the above

Pick up the correct statement from the following: A. Aerial photographs may be either vertical or oblique B. Vertical photographs are taken with the axis of camera pointing vertically downward C. Vertical photographs are used for most accurate maps D. All the above

All the above

Pick up the correct statement from the following: A. Centre of the celestial sphere is taken as the position of the observer B. Centre of the celestial sphere is taken as the centre of the earth C. Stars move and maintain their relative positions D. All the above

All the above

Pick up the correct statement from the following: A. If the applied tension to the tape is more than the standard, the tension correction is positive B. If the applied tension to the tape is less than the standard, the tension correction is negative C. If the temperature during measurement is greater than the standard temperature, the temperature correction is positive D. All the above

All the above

Pick up the correct statement from the following: A. North end of the polar axis is known as North Pole B. South end of the polar axis is known as South Pole C. Point where polar axis when produced northward intersects the celestial sphere, is known as north celestial pole D. All the above

All the above

Pick up the correct statement from the following: A. Refraction correction is zero when the celestial body is in the zenith B. Refraction correction is 33' when the celestial body is on the horizon C. Refraction correction of celestial bodies depends upon their altitudes D. All the above

All the above

Pick up the correct statement from the following: A. The angle between the plane of the negative and the horizontal plane containing perspective axis is the tilt of the photograph B. The direction of maximum tilt is defined by the photo principal line C. The principal plane is truly vertical plane which contains perspective centre as well as principal point and plumb point D. All the above

All the above

Pick up the correct statement from the following: A. The horizontal direction of the pole is called astronomical north B. The angle between the direction of true north and the direction of a survey line is called astronomical bearing C. The astronomical bearing is generally called azimuth D. All the above

All the above

Pick up the correct statement from the following: A. The measured stereoscopic base of photographs is obtained by dividing the air base in metres by the mean scale of the photograph B. The difference between the absolute parallax of two points depends upon the difference in their elevations C. The line joining the principal point of a photograph and the transferred principal point of the adjoining photograph, is called stereoscopic base D. All the above

All the above

Pick up the correct statement from the following: A. The plane passing through the perspective centre of a stereo pair and a ground point, is known as basal plane B. Each pair of image points on stereo pair have their own basal plane C. Relative orientation means reconstructing the basal plane D. All the above

All the above

Pick up the correct statement from the following: A. The principal point coincides with plumb point on a true vertical photograph B. The top of a hill appears on a truly vertical photograph at greater distance than its bottom from the principal point C. The top of a hill is represented on a vertical photograph at larger scale than the area of a nearby valley D. All the above

All the above

Pick up the correct statement from the following: A. The sun's right ascension increases for 0 h to 24 h when it returns to the First point of Aries C. The minimum declination of the sun is zero' on 22nd September D. All the above

All the above

Pick up the correct statement from the following: A. The vertical plane containing the zenith, the station of observation and the celestial pole is the observer's meridian plane B. The angle between the direction of star in vertical plane and the direction of the star in horizontal plane is called the altitude of the star C. The complement of the altitude of star is called the zenith distance of the star D. All the above

All the above

Sidereal day A. Is the period of time taken by the earth in making a complete rotation with reference to stars B. Is slightly shorter than an ordinary solar day C. Is divided into the conventional hours, minutes and seconds D. All the above

All the above

Systematic errors A. Always follow some definite mathematical law B. Can be removed by applying corrections to the observed values C. Are also known as cumulative errors D. All the above

All the above

The First Point of Aeries A. Is the point in the celestial sphere where zero meridian crosses the celestial equator B. Is usually denoted by the Greek letter ? C. Is located near the very conspicuous rectangle of stars in the constellations of Pegasus and Andromeda D. All the above

All the above

The difference of parallax for a given difference in elevation is independent of A. Focal length of the camera B. Overall size of the photo graphs C. Percentage of overlap D. All the above

All the above

The height displacement on a vertical photograph A. Increases as the horizontal distance increases from the principal point B. Increases as the ground elevation increases C. Decreases as the flying height increases D. All the above

All the above

The hour angle of the heavenly body for Greenwich meridian equals the hour angle of the body for any other meridian + longitude: A. Mean sun B. True sun C. Vernal equinox D. All the above

All the above

The latitude of the observer's position, is A. Elevation of the elevated pole B. Declination of the observer's zenith C. Angular distance along the observer's meridian between equator and the observer D. All the above

All the above

The necessary geometrical condition for triangulation adjustment is: A. The sum of the angles around a station should be 360° B. The sum of the three angles of a plane triangle should be 180° C. The sum of the eight angles of a braced quadrilateral should be 360° D. All the above

All the above

The negative sign is assigned to A. Reduction to mean sea level B. Correction for horizontal alignment C. Correction for slope D. All the above

All the above

The parallax of a point on the photograph is due to A. Ground elevation B. Flying height C. Length of air base D. All the above

All the above

The prime vertical passes through A. The east point of the horizon B. The west point of the horizon C. The zenith point of the observer D. All the above

All the above

The principal plane contains A. Nadir point B. Iso-centre C. Principal point D. All the above

All the above

The slotted template method A. Is prepared, by graphical method B. Is suitable for large areas with less control C. Is rapid and accurate D. All the above

All the above

The stereo plotting instruments are generally manufactured on the principle of A. Optical projection B. Optical mechanism projection C. Mechanical projection D. All the above

All the above

The true and mean suns occupy the same meridian at the same time on A. April 15 B. June 14 C. September 1 D. All the above

All the above

There are two stations A and B. Which of the following statements is correct? A. The fore bearing of AB is AB B. The back bearing of AB is BA C. The fore and back bearings of AB differ by 180° D. All the above

All the above

Triangulation surveys are carried out for locating A. Control points for surveys of large areas B. Control points for photogrammetric surveys C. Engineering works, i.e. terminal points of long tunnels, bridge abutments, etc. D. All the above

All the above

While making astronomical observations, the observer is mainly concerned with A. The direction of the vertical, the axis of rotation of the instrument B. The direction of the poles of the celestial sphere C. The direction of the star from the instrument D. All the above

All the above

Pick up the correct statement from the following : A. A level surface is perpendicular at all points to the direction of gravity B. A level line lies in level surface C. A horizontal surface is normal to the direction of gravity at only one point D. A horizontal line is tangential to the level surface E. All the above.

All the above.

Pick up the correct statement from the following : A. The directions of plumb lines suspended at different points in a survey are not strictly parallel B. In surveys of small extent, the effect of curvature may be ignored and the level surface of the earth is assumed as horizontal C. In surveys of large extent, the effect of curvature of the earth must be considered D. All the above.

All the above.

For locating a distant object visible from two transit stations, the method usually preferred to, is A. Angles and distances from transit stations B. Angles from two transit stations C. distance from two transit stations D. Angle from one transit station and distance from the other.

Angles from two transit stations

The angle between the axis of earth and the vertical at the station of observation is called A. Astronomical latitude B. Astronomical co-latitude C. Co-declination of star D. Declination of star

Astronomical co-latitude

Polaris is usually observed for the determination of the latitude when it is A. At culmination B. At elongation C. Neither at culmination nor at elongation D. Either at culmination or at elongation

At culmination

If the altitudes of a star at its upper and lower transits are 60° 30' and 19° 30' respectively, the latitude of the place, is A. 30° B. 35° C. 30° D. 45°

C. 30°

Latitude of the observer's position is equal to altitude of A. North pole B. Pole star C. Celestial pole D. All the above

Celestial pole

Perspective centre relates to A. Parallel projection B. Orthogonal projection C. Central projection D. None of these

Central projection

Pick up the incorrect statement from the following. The angular distance of heavenly bodies on observer's meridian measured from the pole, is A. Co-declination B. Co-altitude C. Co-latitude D. Polar distance

Co-declination

The angle between the direction of star and the direction of earth's axis of rotation is called A. Co-declination B. Co-latitude C. Declination D. Latitude

Co-declination

Select the correct statement. A. Contour interval on any map is kept constant. B. Direct method of contouring is cheap¬er than indirect method. C. Inter-visibility of points on a contour map cannot be ascertained. D. Slope of a hill cannot be determined with the help of contours.

Contour interval on any map is kept constant.

If h1 and h2 are the differences in level between ground and the formation levels, m is the slope of the sloping sides. D is the distance between the cross sections then, prismoidal correction for a level section is A. D/2m(h1 - h2) B. D/3m(h1 - h2) C. D/6m(h1 - h2)2 D. D/6m(h1 - h2)3 E. D/6m(h1 + h2)2

D/6m(h1 - h2)2

The declination and right ascension of the sun becomes 23° 27' S and 270° respectively on A. March 21 B. June 21 C. September 21 D. December 22

December 22

The most convenient co-ordinate system for specifying the relative positions of heavenly bodies on the celestial sphere, is A. Altitude and azimuth system B. Declination and hour angle system C. Declination and right ascension system D. Declination and altitude system

Declination and right ascension system

For any star to be a circumpolar star, its A. Declination must be 0° B. Declination must be 90° C. Distance from the pole must be less than the latitude of the observer D. Hour angle must be 180°

Distance from the pole must be less than the latitude of the observer

Right ascension of a heavenly body is its equatorial angular distance measured A. Westward from the first point of Libra B. Eastward from the first point of Aeries C. Westward from the first point of Aeries D. Eastward from the first point of Libra

Eastward from the first point of Aeries

The latitude of a place was obtained by subtracting the zenith distance of a star from its declination, the observed star was between A. Horizon and equator B. Equator and zenith C. Zenith and pole D. Pole and horizon

Equator and zenith

An angles of 45° with a chain line may be set out with A. optical square B. open cross staff C. Fench cross staff D. prismatic square.

Fench cross staff

The sidereal day is the time interval between two successive upper transits of A. Mean sun B. First point of Aries C. First point of Libra D. The polar star

First point of Aries

Back bearing of a line is equal to A. Fore bearing ± 90° B. Fore bearing ± 180° C. Fore bearing ± 360° D. Fore bearing ± 270°

Fore bearing ± 180°

Equation of time which is the difference between apparent solar time and mean solar time at any instant, vanishes during one year A. Once B. Twice C. Thrice D. Four times

Four times

At the first point of Aeries, the sun moves A. Northward B. Southward C. From south to north of the equator D. From north to south of the equator

From south to north of the equator

The point where a vertical line through the optical centre of the camera lens intersects the ground, is known as A. Ground principal point B. Ground plumb point C. Iso-centre D. Perspective centre

Ground plumb point

If V is the speed of a locomotive in km per hour, g is the acceleration due to gravity, G is the distance between running faces of the rails and R is the radius of the circular curve, the required super elevation is A. gv*2/GR B. Rg/Gv*2 C. GR/gv*2 D. Gv*2/gR

Gv*2/gR

To have greatest coverage of the area, the type of photography used, is A. High oblique B. Low oblique C. Vertical D. None of these

High oblique

The altitude of a heavenly body is its angular distance, measured on the vertical circle passing through the body, above A. Equator B. Horizon C. Pole D. None of these

Horizon

The latitude of a place was obtained by subtracting the declination of a star from its zenith distance, the observed star was between A. Horizon and equator B. Zenith and pole C. Equator and zenith D. Pole and horizon

Horizon and equator

For orientation of a plane table with three points A, B and C, Bessel's drill is A. Align b through a and draw a ray towards c, align a through b and draw a ray towards c, finally align c through the point of intersection of the previously drawn rays B. Align c through a and draw a ray towards b, align a through c and draw a ray towards b, finally align b through the point of intersection of the previously drawn rays C. Align c through b and draw a ray towards a, align b through c and draw a ray towards a, finally align a, through the point of intersection of the previously, drawn rays D. In the first two steps any two of the points may be used and a ray drawn towards the third point, which is sighted through the point of intersection of previously drawn rays in the final step.

In the first two steps any two of the points may be used and a ray drawn towards the third point, which is sighted through the point of intersection of previously drawn rays in the final step.

Pick up the incorrect statement from the following: A. In truly vertical photographs without relief angles are true at the plumb point B. In tilted photographs without relief, angles are true at the iso-centre C. In tilled photographs with relief, angles are true at the principal point D. None of these

In tilled photographs with relief, angles are true at the principal point

The line of collimation method of reduction of levels, does not provide a check on A. intermediate sights B. fore sights C. back sights D. reduced levels.

Intermediate sights

Contour interval is A. Inversely proportional to the scale of the map B. Directly proportional to the flatness of ground C. Larger for accurate works D. Larger if the time available is more

Inversely proportional to the scale of the map

The want of correspondence in stereo-photographs A. Is a good property B. Is a function of tilt C. Is not affected by the change of flying height between photographs D. Is minimum when θ is 3°

Is a function of tilt

The principal line is the line joining the principal point and A. Nadir B. Isocenter C. Perspective centre D. None of these

Isocenter

The declination and right ascension of the sun becomes 23° 27' N and 90° respectively on A. March 21 B. June 21 C. September 21 D. December 22

June 21

In observations of equal precision, the most probable values of the observed quantities are those that render the sum of the squares of the residual errors a minimum, is the fundamental principle of A. Gauss' Mid Latitude formula B. D'Alembert's method C. Legendre's method D. Least square method

Least square method

The shortest distance between two places measured along the surface of the earth, is A. Length of the equator between their longitudes B. Length of the parallel between their longitudes C. Length of the arc of the great circle passing through them D. None of these

Length of the arc of the great circle passing through them

Pick up the incorrect statement from the following: A. Latitudes north of the equator are taken as positive B. Latitudes south of the equator are taken as negative C. Longitudes east of Greenwich are taken as negative D. Longitudes west of Greenwich are taken as positive

Longitudes east of Greenwich are taken as negative

The distance between the minor control point and the principal point should be equal to A. Base line of the left photograph of stereo pair B. Base line of the right photograph of stereo pair C. Sum of the base lines of stereo pair D. Mean of the base lines of the stereo pair

Mean of the base lines of the stereo pair

Which of the following methods of theodolite traversing is suitable for locating the details which are far away from transit stations? A. Measuring angle and distance from one transit station B. Measuring angles to the point from at least two stations C. Measuring angle at one station and distance from other D. Measuring distance from two points on traverse line

Measuring angles to the point from at least two stations

The whole circle bearing of a line is 290°. Its reduced bearing is A. N 20° E B. N 20° W C. N 70° W D. S 70° E

N 70° W

In the quadrantal bearing system, a whole circle bearing of 293° 30′ can be expressed as A. W23°30'N B. N66°30'W C. S113°30'N D. N23°30'W

N66°30'W

The point on the celestial sphere vertically below the observer's position, is called A. Zenith B. Celestial point C. Nadir D. Pole

Nadir

In a tropical year, the numbers of sidereal days are A. One less than mean solar days B. One more than mean solar days C. Equal to mean solar days D. None of these

One more than mean solar days

The distance between the projection centre and the photograph, is called A. Principal distance B. Principal line C. Isocentric distance D. Focal length

Principal distance

The foot of the perpendicular on the picture plane through the optical centre of the camera lens, is known as A. Isocenter B. Principal point C. Perspective centre D. Plumb line

Principal point

The orthogonal projection of the perspective centre on a tilted photograph, is called A. Nadir B. Isocenter C. Principal point D. Plumb point

Principal point

If Δ is the angle of deflection of a simple curve of radius R, the distance between the mid-point of the curve and long chord, is A. R(1 - sin Δ/2) B. R(1 + sin Δ/2) C. R(1 + cos Δ/2) D. R(1 - cos Δ/2)

R(1 - cos Δ/2)

If whole circle bearing of a line is 120°, its reduced bearing is A. S 20° E B. S 60° E C. N 120° E D. N 60° E.

S 60° E

If in a closed traverse, the sum of the north latitudes is more than the sum of the south latitudes and also the sum of west departures is more than the sum of the east departures, the bearing of the closing line is in the A. NE quadrant B. SE quadrant C. NW quadrant D. SW quadrant

SE quadrant

The circle in which a plane tangent to the earth's surface at the point of observation, intersects the celestial sphere, is called A. Visible horizon B. Sensible horizon C. Celestial horizon D. True horizon

Sensible horizon

Pick up the incorrect statement from the following: A. Apparent solar time is measured from the lower transit of the true sun B. Mean solar time is measured from the lower transit of the mean sun C. Sidereal time is measured from the lower transit of the first point of Aries D. Sidereal time is measured from the upper transit of the first point of Aries

Sidereal time is measured from the upper transit of the first point of Aries

Spring tides are caused when A. Sun and moon are in line with earth B. Solar tidal force acts opposite to lunar tidal force C. Solar tidal force and lunar tidal force both coincide D. None of these

Solar tidal force and lunar tidal force both coincide

The zenith is the point on the celestial sphere A. East of observer B. West of observer C. North of observer D. South of observer

South of observer

At western elongation, the pole star moves A. Eastward B. Westward C. Northward D. Southward

Southward

Stellar astronomy deals with A. Plane surveying B. Geodetic surveying C. Star observations D. Planet observations

Star observations

Pick up the incorrect statement from the following. In a spherical triangle A. Every angle is less than two right angles B. Sum of the three angles is equal to two right angles C. Sum of the three angles less than six right angles and greater than two right angles D. Sum of any two sides is greater than the third

Sum of the three angles is equal to two right angles

which of the following methods of contouring is most suitable for a hilly terrain? A. Direct method B. Square method C. Cross-sections method D. Tachometric method

Tachometric method

Select the incorrect statement. A. The true meridians at different places are parallel to each other. B. The true meridian at any place is not variable. C. The true meridians converge to a point in northern and southern hemispheres. D. The maps prepared by national survey departments of any country are based on true meridians.

The true meridians at different places are parallel to each other.

Contour interval is A. The vertical distance between two consecutive contours B. The horizontal distance between two consecutive contours C. The vertical distance between two points on same contour D. The horizontal distance between two points on same contour

The vertical distance between two consecutive contours

For adjusting a quadrilateral whose both the diagonals are observed, the equations of conditions involved, are A. Two angle equations and two side equations B. One angle equation and three side equations C. Three angle equations and one side equation D. None of these

Three angle equations and one side equation

Rotation of the camera at exposure about horizontal axis normal to the line of flight, is known as A. Swing B. Tilt C. Tip D. None of these

Tip

To avoid large centering error with very short legs, observations are generally made A. To chain pins B. By using optical system for centering the theodolite C. To a target fixed on theodolite tripod on which theodolite may be fitted easily D. All the above

To a target fixed on theodolite tripod on which theodolite may be fitted easily

Check lines (or proof lines) in Chain Surveying, are essentially required A. To plot the chain lines B. To plot the offsets C. To indicate the accuracy of the survey work D. To increase the out-turn

To indicate the accuracy of the survey work

Select the correct statement. A. A contour is not necessarily a closed curve. B. A contour represents a ridge line if the concave side of lower value con¬tour lies towards the higher value contour. C. Two contours of different elevations do not cross each other except in case of an overhanging cliff. D. All of the above statements are correct.

Two contours of different elevations do not cross each other except in case of an overhanging cliff.

The coverage is least if photography is A. High oblique B. Low oblique C. Vertical D. None of these

Vertical

Different grades are joined together by a A. Compound curve B. Transition curve C. Reverse curve D. Vertical curve

Vertical curve

If the whole circle bearing of a line is 270°, its reduced bearing is A. N 90° W B. S 90° W C. W 90° D. 90° W.

W 90°

Which one of the following statements is correct ? A. when the axes of rotation of the graduated circle and the verniers are not coincident, the instrument possesses eccentricity B. the mean of the readings of the two verniers gives correct reading free from the eccentricity C. one vernier may be used if the readings of two verniers differ by a constant D. all the above.

all the above

A theodolite is said to be in perfect adjustment if A. rotation axis is vertical to the transit axis B. transit axis is perpendicular to line of collimation C. line of collimation sweeps out a vertical plane while the telescope is elevated or depressed D. all the above.

all the above.

Flint glass A. has slightly the greater refracting power than crown glass B. has roughly double refracting power than that of crown C. and crown glass proportions yield the required focal length and neutralise the dispersion produced by the convex lens at the emergence from the concave D. all the above.

all the above.

If the declination of the needle is 10° W A. each of the whole circle reckoning has to be micros by 10° B. in the quadrantal method, the correction is positive in the 1st and 3rd quadrants C. in the quadrantal method, the corrections is negative in 2nd and 4th quadrants D. all the above.

all the above.

In a perfect prismatic compass A. magnetic axis and geometric axis of the needle coincide B. ends of the needle and pivot are in same vertical and horizontal planes C. pivot is vertically over the centre of the graduated circle D. needle is always kept sensitive E. all the above.

all the above.

In a theodolite A. the telescope axis is perpendicular to transit axis B. the axis of rotation is perpendicular to transit axis C. the telescope axis, the transit axis and the rotation axis pass through the centre of theodolite D. all the above.

all the above.

In an internal focusing telescope A. the objective is at a fixed distance from the diaphragm B. the focusing is done by the sliding of a divergent lens. C. the focusing divergent lens is situated at about the middle of the tube D. all the above.

all the above.

Pick up the correct statement from the following A. 1 second of arc corresponds to a displacement ratio of 1:206, 300 B. 1 degree of arc corresponds to a displacement ratio of 1:57 C. the angular errors tend to propagate themselves along a traverse as the square root of the number of stations D. the errors arising from the linear measures tend to be roughly proportional to the lengths of the lines E. all the above.

all the above.

Pick up the correct statement from the following A. the contour lines having the same elevation cannot unite and continue as one line B. a contour can not end abruptly, but must ultimately close itself not necessarily within the limits of map. C. the direction of steepest slope at a point on a contour is at right angles to the contour D. all the above.

all the above.

Pick up the correct statement from the following : A. a refracting telescope consists optically of two lenses B. the principal axes of both the lenses coincide the optical axis of the telescope C. the lens nearer the object to be viewed is convex and is called objective D. the lens nearer the eye is called eyepiece E. all the above.

all the above.

Pick up the correct statement from the following : A. an observation or the resulting reading with the level on a levelling staff is called sight B. a back sight is the first sight taken after setting up the instrument in any position C. the first sight on each change point is a fore sight D. the second sight on each change point is a back sight E. all the above.

all the above.

Pick up the correct statement from the following : A. in the earth's magnetic field, a magnetic needle rests in magnetic meridian B. the angle between the true meridian and the magnetic meridian is called magnetic variation C. one end of the magnetic needle supported at its centre of gravity tends to dip down towards the. nearer magnetic pole of the earth D. the magnet properly pivoted is balanced by means of riding weight movable along the needle E. all the above.

all the above.

Pick up the correct statement from the following : A. it is difficult to eliminate an error completely at first trial B. instability of the instrument makes it almost impossible to adjust it satisfactorily C. adjustment screws must be left bearing firmly but should never be forced D. all the above.

all the above.

Pick up the correct statement from the following : A. mistakes arise from inattention, inexperience or carelessness B. systematic errors persist and have regular effects in the survey performances C. accidental errors occur inspite of every precaution is taken D. all the above.

all the above.

Pick up the correct statement from the following : A. the framework which consists of a series of connected lines, the lengths and directions of which are found from measurements, is called a traverse. B. the system of a series of lines which forms a circuit which ends at the starting point, is called a closed traverse C. the traverse that starts from a point already fixed in some survey system and ends on another such point, is called a controlled traverse D. the traverse that is not controlled is called a fly traverse E. all the above.

all the above.

Pick up the correct statement from the following : A. the lines of sight while observing back sight and fore sight lie in the same horizontal plane B. the staff readings are measurements made vertically downwards from a horizontal plane C. the horizontal plane with reference to which staff readings are taken, coincides with the level surface through the telescope axis D. all the above.

all the above.

Pick up the correct statement from the following : A. to locate a gross error in bearing that may exist in controlled theodolite traverse, we may plot the traverse from each end. The traverse station having the same coordinates by each route is the one where the error lies B. to locate a gross error in bearing, in a controlled traverse, we plot the traverse and the station through which perpendicular to sector of the closing line passes is the station at which the error was made C. to locate a gross error due to taping in a controlled traverse, we plot the traverse to a convenient scale. The bearing of the closing error will be approximately the same as that of the leg in which the gross error consists D. all the above.

all the above.

Pick up the correct statement from the following : A. with both handles in his left hand, the chain man throws out the chain with his right hand and the second chain man assists him to free it from knots B. the follower of the chaining operation should be more experienced than the leader C. at the end of the tenth chain length, the two chain men meet and the ten arrows are handed over to the leader D. all the above.

all the above.

The bubble tube is nearly filled with A. alcohol or chloroform B. a liquid which is very mobile C. a liquid having low freezing point D. all the above.

all the above.

Volume of the earth work may be calculated by A. mean areas B. end areas C. Prismoidal formula D. Trapezoidal E. all the above.

all the above.

Pick up the incorrect statement from the following : A. while measuring a distance with a tape of length 100.005 m, the distance to be increasing by 0.005 m for each tape length B. an increase in temperature causes a tape to increase in length and the measured distance is too large C. the straight distance between end points of a suspended tape is reduced by an amount called the sag correction D. a 100 m tape of cross section 10 mm x 0.25 mm stretches about 10 mm under 5 kg pull.

an increase in temperature causes a tape to increase in length and the measured distance is too large

Short offsets are measured with A. an ordinary chain B. an invar tape C. a metallic tape D. a steel tape.

an ordinary chain

Contours of different elevations may cross each other only in the case of A. an over hanging cliff B. a vertical cliff C. a saddle D. an inclined plane.

an over hanging cliff

Transit rule of adjusting the consecutive coordinates of a traverse is used where A. linear and angular measurements of the traverse are of equal accuracy B. angular measurements are more accurate than linear measurements C. linear measurements are more accurate than angular measurements D. all of the above

angular measurements are more accurate than linear measurements

Tilt of the staff in stadia tacheometry increases the intercept if it is A. away from the telescope pointing down hill B. towards the telescope pointing up-hill C. away from the telescope pointing up-hill D. none of these.

away from the telescope pointing up-hill

A transit is oriented by setting its vernier A to read the back azimuth of the preceding line. A back sight on the preceding transit station taken and transit is rotated about its vertical axis. The vernier A reads A. azimuth of the forward line B. bearing of the. forward line C. back bearing of the forward line D. equal to 360°-azimuth of the forward line.

azimuth of the forward line

The angle of intersection of a curve is the angle between A. back tangent and forward tangent B. prolongation of back tangent and forward tangent C. forward tangent and long chord D. back tangent and long chord.

back tangent and forward tangent

Whole circle bearing of a line is preferred to a quadrantal bearing merely because A. bearing is not completely specified by an angle B. bearing is completely specified by an angle C. Sign of the correction of magnetic declination is different in different quadrants D. its trigonometrical values may be extracted from ordinary tables easily.

bearing is completely specified by an angle

The Huygen's telescope eye piece A. is aplanatic B. achromatic C. both (a) and (b) D. neither (a) nor (b).

both (a) and (b)

The method of reversal A. is usually directed to examine whether a certain part is truly parallel or perpendicular to another B. makes the erroneous relationship between parts evident C. both (a) and (b) D. neither (a) nor (b).

both (a) and (b)

The slope correction may be ignored if A. the slope of the ground is less than 3° B. to slope of the ground is say 1 in 19 C. both (a) and (b) D. neither (a) nor (b)

both (a) and (b)

In setting up a plane table at any station A. levelling is done first B. centering is done first C. both levelling and centering are done simultaneously D. orientation is done first.

both levelling and centering are done simultaneously

The line of sight is kept as high above ground surface as possible to minimise the error in the observed angles due to A. shimmering B. horizontal refraction C. vertical refraction D. both shimmering and horizontal refraction.

both shimmering and horizontal refraction.

The distances AC and BC are measured from two fixed points A and B whose distance AB is known. The point C is plotted by intersection. This method is generally adopted in A. chain surveying B. traverse method of surveys C. triangulation D. none of these.

chain surveying

The defect of a lens whereby rays of white light proceeding from a point get dispersed into their components and conveyed to various foci, forming a blurred and coloured image is known as A. chromatic aberration B. spherical aberration C. astigmatism D. coma.

chromatic aberration

The included angles of a theodolite traverse, are generally measured A. clockwise from the forward station B. anti-clockwise from the back station C. anti-clockwise from the forward station D. clockwise from the back station.

clockwise from the back station.

An imaginary line lying throughout the surface of ground and preserving a constant inclination to the horizontal is known as A. contour line B. horizontal equivalent C. contour interval D. contour gradient

contour gradient

If 'δ' is the declination of the Polaris and 'λ' is the latitude of the place, the azimuth of the Polaris, is A. cos δ/cos λ B. cos (90° - δ)/cos (90° - λ) C. sin (90° - δ)/sin (90° - λ) D. tan (90° + δ)/tan (90° + λ)

cos δ/cos λ

The length of a parallel of λ latitude between two meridians is equal to difference in longitudes multiplied by A. sin λ B. cos λ C. tan λ D. cot λ

cos λ

If α and β be the elevations of two objects A and B respectively, θ be the angle observed by a sextant. The correct horizontal angle is A. cos φ = (cos θ - sin α sin β)/cos α.cos β B. cos φ = (sin θ - sin α sin β)/cos α.cos β C. cos φ = (cos θ - sin α sin β)/sin α.sin β D. none of these.

cos φ = (cos θ - sin α sin β)/cos α.cos β

If d is the distance between equidistant odd ordinates, the Simpson's rule for the areas, is A. d/2 [h1 + hn + 2(h3 + h5 + ... + hn - 2) + 4(h2 + h4 + ... + hn - 1)] B. d/3 [h1 + hn + 2(h3 + h5 + ... + hn - 2) + 4(h2 + h4 + ... + hn - 1)] C. d/6 [h1 + hn x 2(h2 + h4 + ... + hn - 1) + 4(h3 + h5 + ... + hn - 2)] D. d/6 [h1 + hn + 2(h3 + h5 + ... + hn - 2) + 4(h2 + h4 + ... + hn - 1)] E. none of these.

d/3 [h1 + hn + 2(h3 + h5 + ... + hn - 2) + 4(h2 + h4 + ... + hn - 1)]

The horizontal angle between the true meridian and magnetic meridian at a place is called A. azimuth B. declination C. local attraction D. magnetic bearing

declination

With the rise of temperature, the sensitivity of a bubble tube A. decreases B. increases C. remains unaffected D. none of the above

decreases

Greater accuracy in linear measurements, is obtained by A. tacheometry B. direct chaining C. direct taping D. all the above.

direct taping

Magnetic declination at any place A. remains constant B. does not remain constant C. fluctuates D. changes abruptly.

does not remain constant

Prolongation of chain line across an obstruction in chain surveying, is done by A. making angular measurements B. drawing perpendiculars with a chain C. solution of triangles D. all the above.

drawing perpendiculars with a chain

Which of the following errors can be neutralised by setting the level midway between the two stations ? A. error due to curvature only B. error due to refraction only C. error due to both curvature and re-fraction D. none of the above

error due to both curvature and re-fraction

From the principal point the horizon point lies on the principal line at a distance of A. f tan θ B. f sin θ C. f cot θ D. f cos θ

f tan θ

If 'f' is the focal length of the camera lens and 'θ' is the angle of tilt, the distance of the plumb point from the principal point will be A. f sin θ B. f cos θ C. f tan θ D. f sec θ

f tan θ

Transition curves are introduced at either end of a circular curve, to obtain A. gradually decrease of curvature from zero at the tangent point to the specified quantity at the junction of the transition curve with main curve B. gradual increase of super-elevation from zero at the tangent point to the specified amount at the junction of the transition curve with main curve C. gradual change of gradient from zero at the tangent point to the specified amount at the junction of the transition curve with main curve D. none of these.

gradual increase of super-elevation from zero at the tangent point to the specified amount at the junction of the transition curve with main curve

In case of a direct vernier scale A. graduations increase in opposite direction in which graduations of the main scale increase B. smallest division is longer than smallest division of the main scale C. graduations increase in the same direction in which graduations of the main scale increase D. none of these.

graduations increase in the same direction in which graduations of the main scale increase

If h is the difference in height between end points of a chain of length l, the required slope correction is A. h*2/2l B. h/2l C. h*2/l D. 3 h*2/2l.

h*2/2l

From any point on the surface with a given inclination A. only one contour gradient is possible B. two contour gradients are possible C. indefinite contour gradients are possible D. all the above.

indefinite contour gradients are possible

Which of the following methods of plane table surveying is used to locate the position of an inaccessible point ? A. radiation B. intersection C. traversing D. resection

intersection

The difference between a level line and a horizontal line is that A. level line is a curved line while hori-zontal line is a straight line B. level line is normal to plumb line while horizontal line may not be normal to plumb line at the tangent point to level line C. horizontal line is normal to plumb line while level line may not be normal to the plumb line D. both are same

level line is a curved line while hori-zontal line is a straight line

The adjustment of horizontal cross hair is required particularly when the instrument is used for A. leveling B. prolonging a straight line C. measurement of horizontal angles D. all of the above

leveling

The imaginary line passing through the intersection of cross hairs and the optical centre of the objective, is known as A. line of sight B. line of collimation C. axis of the telescope D. none of these.

line of collimation

A 'level line' is a A. horizontal line B. line parallel to the mean spheriodal surface of earth C. line passing through the center of cross hairs and the center of eye piece D. line passing through the objective lens and the eye-piece of a dumpy or tilting level

line parallel to the mean spheriodal surface of earth

Grid lines are parallel to A. magnetic meridian of the central point of the grid B. line representing the central true meridian of the grid C. geographical equator D. none of these.

line representing the central true meridian of the grid

If a linear traverse follows a sharp curve round a large lake where it is difficult to have long legs, the accuracy of the traverse may be improved by A. taking short legs B. making repeated observations of angular and linear measurements C. making a subsidiary traverse to determine the length of a long leg D. all the above.

making a subsidiary traverse to determine the length of a long leg

To orient a plane table at a point P roughly south of the mid-point of two inaccessible conical hill stations A and B in the plains, a point C is selected in line with AB and table is oriented at C by bringing ab in line with AB. A ray is then drawn towards P and at P the table is oriented by back ray method. The orientation so obtained, is A. unique and correct B. incorrect C. manifold and correct D. not reliable

manifold and correct

Dumpy level is most suitable when A. the instrument is to be shifted frequently B. fly levelling is being done over long distance C. many readings are to be taken from a single setting of the instrument D. all of the above

many readings are to be taken from a single setting of the instrument

In tacheometrical observations, vertical staff holding is generally preferred to normal staffing, due to A. ease of reduction of observations B. facility of holding C. minimum effect of careless holding on the result D. none of these.

minimum effect of careless holding on the result

The cross hairs in the surveying telescope are placed A. midway between eye piece and objec-tive lens B. much closer to the eye-piece than to the objective lens C. much closer to the objective lens than to the eye piece D. anywhere between eye-piece and objective lens

much closer to the eye-piece than to the objective lens

If a tacheometer is fitted with an anal-latic lens A. additive constant is 100, multiplying constant is zero B. multiplying constant is 100, additive constant is zero C. both multiplying and additive constants are 100 D. both multiplying and additive constants are 50.

multiplying constant is 100, additive constant is zero

Which of the following errors cannot be eliminated by taking both face observations ? A. error due to horizontal axis not being perpendicular to the vertical axis B. index error i.e. error due to imperfect adjustment of the vertical circle vernier C. error due to non-parallelism of the axis of telescope level and line of collimation D. none of the above

none of the above

Which of the following is not the function of levelling head ? A. to support the main part of the instrument B. to attach the theodolite to the tripod C. to provide a means for leveling the theodolite D. none of the above

none of the above

The true meridian of a place is the line in which earth's surface is intersected by a plane through A. east and west points B. zenith and nadir points C. north and south geographical poles D. north and south magnetic poles.

north and south geographical poles

Total latitude of a point is positive if it lies A. north of the reference parallel B. south of the reference parallel C. east of the reference parallel D. west of the reference parallel.

north of the reference parallel

In a closed traverse, sum of south latitudes exceeds the sum of north latitudes and the sum of east departures exceeds the sum of west departures, then, the closing line will lie in A. north-west quadrant B. north east quadrant C. south-east quadrant D. south-west quadrant.

north-west quadrant

If the lower clamp screw is tightened and upper clamp screw is loosened, the theodolite may be rotated A. on its outer spindle with a relative motion between the vernier and graduated scale of lower plate B. on its outer spindle without a relative motion between the vernier and gra-duated scale of lower plate C. on its inner spindle with a relative motion between the vernier and the graduated scale of lower plate D. on its inner spindle without a relative motion between the vernier and the graduated scale of lower plate

on its inner spindle with a relative motion between the vernier and the graduated scale of lower plate

Simpson's rule for calculating areas states that the area enclosed by a curvilinear figure divided into an even number of strips of equal width, is equal to A. half the width of a strip, multiplied by the sum of two extreme offsets, twice the sum of remaining odd offsets, and thrice the sum of the even offsets B. one third the width of a strip, multiplied by the sum of two extreme offsets, twice the sum of remaining odd offsets and four times the sum of the even offsets C. one third the width of a strip, multiplied by the sum of two extreme offsets, four times the sum of the remaining odd offsets, and twice the sum of the even offsets D. one sixth the width of a strip, multiplied by the sum of the two extreme offsets, twice the sum of remaining odd offsets and four times the sum of the even offsets E. none of these

one third the width of a strip, multiplied by the sum of two extreme offsets, twice the sum of remaining odd offsets and four times the sum of the even offsets

Refraction correction A. completely eliminates curvature correction B. partially eliminates curvature correction C. adds to the curvature correction D. has no effect on curvature correction

partially eliminates curvature correction

The 'point of curve' of a simple circular curve, is A. point of tangency B. point of commencement C. point of intersection D. mid-point of the curve

point of commencement

Local attraction in compass surveying may exist due to A. incorrect levelling of the magnetic needle B. loss of magnetism of the needle C. friction of the needle at the pivot D. presence of magnetic substances near the instrument

presence of magnetic substances near the instrument

Agate cap is fitted with a A. cross staff B. level C. chain D. prismatic compass

prismatic compass

The magnetic meridian at any point, is the direction indicated by a freely suspended A. magnetic needle B. and properly balanced magnetic needle C. properly balanced and uninfluenced by local attractive force D. magnetic needle over an iron pivot.

properly balanced and uninfluenced by local attractive force

Height of instrument method of levelling is A. more accurate than rise and fall method B. less accurate than rise and fall method C. quicker and less tedious for large number of intermediate sights D. none of the above

quicker and less tedious for large number of intermediate sights

Detailed plotting is generally done by A. radiation B. traversing C. resection D. all of the above

radiation

Sensitiveness of a level tube is designated by A. radius of level tube B. length of level tube C. length of bubble of level tube D. none of the above

radius of level tube

Designation of a curve is made by : A. angle subtended by a chord of any length B. angle subtended by an arc of specified length C. radius of the curve D. curvature of the curve.

radius of the curve

During secular variation of magnetic meridian at different places A. range of oscillations is constant B. period of oscillation is constant C. range and period of oscillation both vary D. period of oscillation only varies.

range and period of oscillation both vary

The error due to eccentricity of inner and outer axes can be eliminated by A. reading both verniers and taking the mean of the two B. taking both face observations and taking the mean of the two C. double sighting D. taking mean of several readings distributed over different portions of the graduated circle

reading both verniers and taking the mean of the two

Which one of the following procedures for getting accurate orientation is the most distinctive feature of the art of plane tabling A. radiation B. intersection C. traversing D. resection.

resection

The two point problem and three point problem are methods of A. resection B. orientation C. traversing D. resection and orientation

resection and orientation

The ratio of the distances at which a stated length can be distinguished by the telescope and the human eye, respectively, is called A. brightness of telescope B. magnification of telescope C. resolving power of telescope D. none of these.

resolving power of telescope

If the smallest division of a vernier is longer than the smallest division of its primary scale, the vernier is known as A. direct vernier B. double vernier C. retrograde vernier D. simple vernier.

retrograde vernier

Cross staff is an instrument used for A. measuring approximate horizontal angles B. setting out right angles C. measuring bearings of the lines D. none of the above

setting out right angles

Cross-staff is used for A. setting out right angles B. measuring contour gradient C. taking levels D. measuring distances E. none of these

setting out right angles

If 'δ' is the declination of the star and 'φ' is the latitude of the observer, then the azimuth of the star at elongation is given by A. sin z = sec φ . cos δ B. cos z = sec φ . cos δ C. tan z = sec φ . cos δ D. None of these

sin z = sec φ . cos δ

The elevation of the star at elongation is obtained by A. sin α = sin φ cosec δ B. sin α = sin φ sec δ C. sin α = cos φ sec δ D. sin α = cos φ cosec δ

sin α = sin φ cosec δ

Chain surveying is well adopted for A. small areas in open ground B. small areas with crowded details C. large areas with simple details D. large areas with difficult details.

small areas in open ground

The Random errors tend to accumulate proportionally to A. numbers of operations involved B. reciprocal of operations involved C. square root of the number of operation involved D. cube root of the number of operation involved.

square root of the number of operation involved

f vertical angles of inclined sights do not exceed 10° and non-verticality of the staff remains within 1°, stadia system of tacheometric observations are made on A. staff normal B. staff vertical C. staff normal as well as vertical D. none of these.

staff normal

A series of closely spaced contour lines represents a A. steep slope B. gentle slope C. uniform slope D. plane surface

steep slope

In case of a double line river, contours are A. stopped at the banks of the river B. stopped at the edge of the river C. drawn across the water D. drawn by parabolic curves having their vertex at the centre of the water.

stopped at the edge of the river

Diaphragm of a surveying telescope is held inside A. eye-piece B. objective C. telescope tube at its mid point D. telescope at the end nearer the eye-piece E. telescope at its end nearer the objective.

telescope at the end nearer the eye-piece

The instrument which is used in plane tabling for obtaining horizontal and vertical distances directly without resorting to chaining, is known as A. Plane alidade B. telescopic alidade C. clinometer D. tacheometer.

telescopic alidade

Pick up the wrong statement from the following : A. the diaphragm is placed between the eyepiece and the objective but nearer to the former B. the diaphragm is placed between the eyepiece and the objective but nearer to the later C. the outer component of the objective is a double-convex lens of crown glass D. the inner component of the objective is a flint glass, convexo-concave E. all the above.

the diaphragm is placed between the eyepiece and the objective but nearer to the later

A telescope is said to be inverted if its A. vertical circle is to its right and the bubble of the telescope is down B. vertical circle is to its right and the bubble of the telescope is up C. vertical circle is to its left and the bubble of the telescope is down D. vertical circle is to its left and the bubble of the telescope is up

vertical circle is to its right and the bubble of the telescope is down

In direct method of contouring, the process of locating or identifying points lying on a contour is called A. ranging B. centring C. horizontal control D. vertical control

vertical control

In tangential tacheometry, an ordinary level staff is used A. leaning towards the instrument for inclined sights upward B. leaning away from the instrument for inclined sights downwards C. vertical in all cases D. none of these.

vertical in all cases

While measuring a chain line between two stations A and B intervened by a raised ground A. vision gets obstructed B. chaining gets obstructed C. both vision and chaining get obstructed D. all the above.

vision gets obstructed

. If F is the pull applied at the ends of tape in kg, l is the length of tape between end marks in metres, w is the weight of the tape in kg per metre run, then sag correction A. C = w^2l^2/24f^2 B. C = w^3l^2/24f^2 C. C = w^2l^3/24f^3 D. C = 24w^2l^3/80f^3

w^2l^2/24f^2

A negative declination shows that the magnetic meridian is to the A. eastern side of the true meridian B. western side of the true meridian C. southern side of the true meridian D. none of the above

western side of the true meridian

The approximate formula for radial or perpendicular offsets from the tangent, is A. x/2R B. x*2/2R C. x/R D. x*2/R

x*2/2R

An angle of deflection right, may be directly obtained by setting the instrument to read A. zero on back station B. 180° on back station C. 90° D. 270° on back station.

zero on back station

Probable accidental error in precise levelling as recommended by International Geodetic Association, should not exceed (where k is in kilometers.) A. ± 0.1 √k mm B. ± 0.5 √k mm C. ± 1 √k mm D. ± 2 √k mm E. ± 5 √k mm.

± 1 √k mm

When a star is between the pole and the horizon, the relationship between latitude (λ), zenith distance (z) and declination δ, is A. θ = z + δ B. θ = δ - z C. θ = 180° - (z + δ) D. θ = (z + δ) - 180°.

θ = 180° - (z + δ)

The latitude (λ) of a place and the altitude (α) of the pole are related by A. λ = α B. λ = 90° - α C. λ = α - 90° D. λ = 180° - α

λ = α

If E is the spherical excess and R the radius of the earth, the surface area of the triangle, is A. πR²E/90° B. πR²E/180° C. πR²E/270° D. πR²E/360°

πR²E/180°

If Δ is the angle of deflection of a simple curve of radius R, the length of the curve is : A. πRΔ/90° B. πRΔ/180° C. πRΔ/270° D. πRΔ/360°

πRΔ/180°

Accidental or compensating errors of length L are proportional to A. L B. √L C. 3*√L D. 1/√L.

√L

The curve composed of two arcs of different radii having their centres on the opposite side of the curve, is known A. a simple curve B. a compound curve C. a reverse curve D. a vertical curve.

a reverse curve

Closed contours of decreasing values towards their centre, represent A. a hill B. a depression C. a saddle or pass D. a river bed.

a depression