Ag Technology - Module 8, Ag Technology - Module 7, Module Five - Ag Tech, Module 4 - AG Tech, Ag Tech - Module 3, Module 2 - Ag tech - Measures and Horsepower, and Simple Machines, Ag Technology Quiz 1, Ag Technology Mastery Quiz 2, Module 6 - Ag te...
A designation of T4N, R3E would be located between 18-24 miles North of the baseline and 12-18 miles East of the guide meridian
true
A quarter-section is 160 acres and measures 1/2 mile on each side
true
A simple beam can support more load if the load is uniform rather than being a point load
true
According to table 24-1, a 2 x 4 placed on its edge has a greater section modulus than a 2x8 placed in a flat position
true
According to table 24-1, the section modulus of a 2x6 placed on edge is more than twice that of a 2 x 4 placed on edge
true
An output cylinder that has 5 times the area of the input cyliner can lift 5 times the force applied to the input cylinder
true
Equipment used in variable rate applications replaces mechanical drives with equipment that is hydraulic or electrical driven
true
In checking for accuracy, the difference between the totals of the BS and FS columns should equal the difference between the beginning and ending elevations
true
Lumber has a higher section modulus when placed on an edge position rather than in a flat position
true
On a rod, the numbers in red indicate feet and the numbers in black are inches or tenths of a foot
true
On any belt drive, a larger pulley will rotate slower than than a smaller pulley
true
Output cylinders with larger surface areas will move less distance than those with smaller surface areas.
true
Pascal's Law says that force is equal to pressure times the area
true
The metes and bounds land description system uses objects and neighbors as points of reference
true
To run a shaft a speed ratio of 5:1 is needed. That means one sprocket will have 5 times as many teeth as the other
true
Torque is greater when the pulley size is larger
true
Two gears in direct contact will rotate in opposite directions
true
Using Real Time Kinematic (RTK) correction for accuracy requires a base station be located in the field
true
When the circuit is closed in differential leveling, the ending elevation should be the same as the beginning elevation
true
A temporary point upon which foresight and backsight readings are taken to continue the line of survey is called a:
turning point
Sections in a township are numbered beginning with #1 in the:
upper-right hand corner
With Precision Technology in Agriculture, accuracy refers to _______________.
how close the receiver is to the true location
Meridians are:
lines in the rectangular system that run parallel North and South
Which is a false statement?
most agricultural applications today use regular GPS for location
Maps associated with VRA subdivide fields into zones or areas that are ______ in size.
not - 5-10acres any of the above
Which operation would require high accuracy (RTK):
not - all require rt yeild mappping
The elevation of a new turning point is determined by:
the height of instrument minus the foresight on the turning point
A rod "target" is used when:
the sight distance is greater than 250 feet
An East-West row of townships is known as a:
tier
Why must closing corners be used in the rectangular survey system?
to adjust for convergence of meridians as they approach the North pole
A tract of land described as the S1/2 of NE1/4 of SW1/4 would contain how many acres?
20
What is the maximum point load a simple beam made of 2 x 6 material can hold (on edge) if the allowable fiber stress is 1100 lbs per square inch and the beam is 12 foot long?
231
What is the maximum uniform load of a simple beam made of 2x8 #2 pine (on edge) that is 8 foot long?
903
When calibrating equipment, what is the percent error that is acceptable?
1-2%
How many acres would be included in a tract of land described as NE1/4 NW1/4 SE1/4?
10 acres
After completing a profile leveling exercise, the totals of the backsights equals 10.5 feet. The total of the foresights should equal:
10.5
Two gears in a transmission mesh together. Gear 1 rotates at 400 RPM and has 15 teeth. Gear two has 60 teeth. At what speed does it rotate?
100 RPM
In profile and differential leveling, it is common to use an assumed benchmark reading of:
100 feet
A power source has 30 teeth and rotates at 400 RPM. It drives a a gear with 10 teeth. How fast does the gear rotate?
1200 RPM
What is the maximum uniform load for a 2 x 6 cantilever beam made of #2 southern pine (on edge) if the beam is 8 foot long?
130
A shaft needs a speed ratio of 4:1. If the larger gear has 60 teeth, how many teeth will the smaller gear need?
15
An electric motor operates at 1000 RPM and has a pulley with a 4 inch diameter. A shop fan connected to the motor needs to rotate at 250 RPM. What size pulley should be placed on the shop fan so it will operate at the correct speed?
16 inch
An electric motor operates at 1000 RPM and has a pulley with a 4 inch diameter. A shop fan connected to the motor needs to rotate at 250 RPM. What size pulley should be placed on the shop fan so it will operate at the correct speed?
16 inch pulley
How many sections are in a township?
36
How many acres are in the tract of land that has a light blue color?
40 acres
The rate at which data is updated to the receiver for most ag equipment should be about:
5-10 hetz
A township is:
6 miles wide and 6 miles long
How many acres are contained in a section?
640
Most land in Kansas, Nebraska, Colorado, and Oklahoma was surveyed using what starting point?
6th principal meridian
What would be the section modulus (K factor) for board with a nominal measurement of 1.5 inches thick x 6 inches wide
9
Determine the Height of Instrument (HI) between TP 1 and TP 2 given the following: The elevation of TP1 is 88.3 feet, the backsight (BS) on TP1 is 5.7 feet and the foresite (FS) on TP2 is 1.4 feet
94
A rod reading taken by looking back on a known elevation is a foresight
False
A foresight is a reading taken on a known elevation
False
The biggest disadvantage of the Metes and Bounds system of land description is that tracts of land are in numerous and very small, making the process more difficult
False
According to the Appendix XI, Which material would have the highest allowable stress?
NOT - # 1 southern pine
What is the maximum point load for a 2 x 6 cantilever beam made of #2 southern pine (on edge) if the beam is 8 foot long?
NOT - 162 144
What is the maximum point load that can be supported by a 2 x 8 cantilever beam of #2 southern pine that is 8 foot long?
NOT - 180 lbs 225
How far apart are guide meridians?
NOT - 2 miles 2 townships
What is the smallest size of #2 southern pine simple beam that will support a point load of 700 lbs if the beam is 120 inches long?
NOT - 2x6
Which of the following would contain 80 acres? (more than one correct answer)
NOT - E1/2 NW1/4
Which of the following statements is true?
NOT - profile leveling does not include the use of turning points, but only uses the benchmark and foresight readings a "closing circuit" is not necessary in profile leveling with profile surveying, stations should be every 50 feet, regardless of the terrain
The section modulus for a 2 x 8 wood beam on edge is ____ the same 2 x 8 beam when used in a flat position.
NOT - the same as half as much as
In which way does a simple bean differ from a cantilever beam?
NOT -simple beams stand on edge while cantilever beams lay in a flat position
According to table 24-1, what is the section modulus for a 2 x 8 placed on edge?
NOt 2.72
Which would be the correct designation for a township that is located between 6-12 miles south of the baseline and 18-24 miles east of the principal meridian?
T2S, R4E
Which is NOT a factor in determining the load that a beam can carry?
height the load is from the ground
All of the mechanical devices used to transfer power through a machine are called:
a power train
Which statement about land measurement is correct?
a section of land is 1 mile square
GNSS:
all of the above
In what way is sensor based variable rate technology different than map based VRA?
all of the above
RTK satellite receivers:
all of the above
Which is a value or use of "as applied" maps?
all of the above
Which is true?
all of the above
Which of the following can utilize variable rate technology and equipment?
all of the above
The actual size of a 2 x 4 structural member is:
b and c above
A rod reading taken on a known elevation is called a:
backsight
The height of instrument is determined by adding what two items?
backsight and benchmark
Gear 1 has 20 teeth and rotates clockwise at 1500 RPM. Gear 2 is in direct contact with gear 1, has 30 teeth and rotates ________ at an RPM of ________.
counter-clockwise, 1000
According to Principle 2 of hydraulic systems, pressure determines the speed and amount of movement for the actuators in the system.
false
In the designation T1S, R2E, the R stands for "registered"
false
Once an instrument is set up, differential leveling will involve taking several foresight readings from the same setup point
false
Sprockets rotate slower than pulleys
false
When the driver pulley is larger than the driven pulley, the driven pulley will rotate ______ the driver.
faster than
The purpose of differential leveling is to:
find the difference in elevation between two points
Which are advantages of using sprockets and chains over pulleys and a belt drive? (more than one correct answer)
greater power can be transmitted the sprockets stay in time
The data from a yield map and a soil fertility map are used to make a __________ which is then used to tell the equipment at what rate to apply the fertilizer.
prescription map
The primary reference line for land that runs North and South is called the:
principal meridians
All of the following could result in an error in a survey, EXCEPT:
reading foresights to the nearest .01
Which method of land description divides land west of the Ohio River, using North-South and East-West lines to form an organized system of land tracts?
rectangular
Which statements are true about sections? (more than one correct answer)
sections contain 640 acres sections are numbered in a serpentine fashion beginning in the upper right-hand corner of the township
Determine the elevation of TP1 given the following: The Height of Instrument between the benchmark and TP1 is 97.0 feet and the foresight (FS) on TP1 is 6.6 feet
the elevation of TP1 is 90.4 feet
The Height of Instrument (HI) is determined by:
the elevation of the bench mark plus the backsight reading
The technology that allows farmers to apply the correct amount of a crop input to different parts of the same field is known as:
variable rate technology
