EASA Part 66 : Maintenance Practice Question3
Question Number. 136. What is the resolution of a standard DTI?. Option A. 0.020 mm. Option B. 0.050 mm. Option C. 0.010 mm.
Correct Answer is. 0.010 mm. Explanation. Some modern DTIs can do 1/10th of that.
Question Number. 129. A flat chisel being used for aluminium should have a point angle of. Option A. 65 degrees. Option B. 30 degrees. Option C. 55 degrees.
Correct Answer is. 30 degrees. Explanation. NIL.
Question Number. 93. For a drill to cut properly it is essential that the point angle be the same on each side, for general use the angle is. Option A. 12°. Option B. 130°. Option C. 59°.
Correct Answer is. 59°. Explanation. Jeppesen A & P Technician Airframe page 2-27.
Question Number. 5. What is the normal cutting angle of a drill?. Option A. 59°. Option B. 130°. Option C. 12°.
Correct Answer is. 59°. Explanation. Jeppesen A&P Technician General Textbook Page 15.
Question Number. 127. A drill bit of 0.250 inch would be. Option A. 7/32 and letter G. Option B. 8/32 and letter E. Option C. 6/32 and letter F.
Correct Answer is. 8/32 and letter E. Explanation. See a drill chart.
Question Number. 68. On a multimeter, what colour lead is connected to the Common socket?. Option A. Green. Option B. Red. Option C. Black.
Correct Answer is. Black. Explanation. Jeppesen A&P General Technician Textbook Page 3-94 fig 3-201 and fig 3-202.
Question Number. 74. What is the purpose of a Morse taper on large sizes of twist drills?. Option A. To allow the drills to be fitted to a drilling machine. Option B. To ensure that the drill is fitted correctly. Option C. To give a positive drive when fitted into a tapered chuck.
Correct Answer is. To give a positive drive when fitted into a tapered chuck. Explanation. NIL.
Question Number. 2. What type of drill would you use on carbon fibre?. Option A. Diamond tipped. Option B. Carborundum. Option C. Tungsten carbide.
Correct Answer is. Tungsten carbide. Explanation. Airbus A340-600 SRM.
Question Number. 91. Surface Plates are used. Option A. for marking out work and testing flat surfaces. Option B. for filing flat surfaces. Option C. only on surface tables.
Correct Answer is. for marking out work and testing flat surfaces. Explanation. NIL.
Question Number. 59. When measuring current in a circuit, the ammeter is placed. Option A. in series with the circuit. Option B. in series with the shunt. Option C. in parallel with the circuit.
Correct Answer is. in series with the circuit. Explanation. NIL.
Question Number. 63. An open circuit on an ohmmeter would be indicated by a reading of. Option A. infinite resistance. Option B. zero resistance. Option C. a negative resistance.
Correct Answer is. infinite resistance. Explanation. Eismin Aircraft Electricity and Electronics P165/166.
Question Number. 139. The forces acting on a meter which moves the pointer over the scale is called. Option A. the controlling force. Option B. the turning force. Option C. the deflecting force
Correct Answer is. the deflecting force. Explanation. NIL.
Question Number. 17. The pitch of a hacksaw blade is. Option A. its length. Option B. the number of teeth on the blade. Option C. the number of teeth per inch.
Correct Answer is. the number of teeth per inch. Explanation. NIL.
Question Number. 79. The name given to the moving scale on the Vernier caliper is. Option A. the main scale. Option B. the vernier scale. Option C. the cursor.
Correct Answer is. the vernier scale. Explanation. BL/3-4 fig 2 (although the whole moving frame - which has the scale - is called the cursor).
Question Number. 27. If all three prongs on a bonding tester were shorted together, the metre would read. Option A. FSD. Option B. zero. Option C. off-scale high.
Correct Answer is. zero. Explanation. CAIP EEL/1-6 3.10.2b.
Question Number. 99. The pitch of the screw thread on an English micrometer is. Option A. 0.050 in. Option B. 0.001 in. Option C. 0.025 in.
Correct Answer is. 0.025 in. Explanation. BL/3-5 4.1.
Question Number. 23. One revolution of the thimble of the English micrometer produces a linear movement of the spindle of. Option A. 0.001 inch. Option B. 0.025 inch. Option C. 0.040 inch.
Correct Answer is. 0.025 inch. Explanation. CAIP S BL/3-5.
Question Number. 28. The pitch of the screw thread on an English micrometer is. Option A. 0.0001 inches. Option B. 0.050 inches. Option C. 0.025 inches.
Correct Answer is. 0.025 inches. Explanation. Jeppesen A&P General Textbook 9-36.
Question Number. 134. Three revolutions of a 40 T.P.l. micrometer will show. Option A. 0.03 inch. Option B. 0.075 inch. Option C. 0.003 inch.
Correct Answer is. 0.075 inch. Explanation. 0.025 inch * 3 = 0.075.
Question Number. 112. On a vernier micrometer, what will three turns of the barrel represent?. Option A. 0.075 inch. Option B. 0.100 inch. Option C. 0.050 inch.
Correct Answer is. 0.075 inch. Explanation. One full turn of a vernier micrometer thimble is 0.025 inch.
Question Number. 44. The depth micrometer reading shown is. Option A. 0.261 ins. Option B. 0.361 ins. Option C. 0.336 ins.
Correct Answer is. 0.261 ins. Explanation. NIL.
Question Number. 62. If an English micrometer is showing 4 main divisions, 3 sub-divisions and the 25th thimble division was in line, what would the reading be?. Option A. 0.475 in. Option B. 0.175 in. Option C. 0.555 in.
Correct Answer is. 0.475 in. Explanation. BL/3-5 Para 2.3, 4.1.2.
Question Number. 97. The reading on the inch micrometer scale shown is. Option A. 0.483 ins. Option B. 0.488 ins. Option C. 4.758 ins.
Correct Answer is. 0.483 ins. Explanation. BL/3-5.
Question Number. 24. The pitch of a metric micrometer screw thread is. Option A. 0.02 mm. Option B. 1.0 mm. Option C. 0.5 mm.
Correct Answer is. 0.5 mm. Explanation. NIL.
Question Number. 38. The length of the Vernier Scale in a 24/25 Vernier Caliper is. Option A. 0.6 in. Option B. 1.2 in. Option C. 2.45 in.
Correct Answer is. 0.6 in. Explanation. NIL.
Question Number. 64. The leads of an ohmmeter should be replaced if their resistance is greater than. Option A. 0.5 ohms. Option B. 1 ohm. Option C. 0.05 ohms.
Correct Answer is. 1 ohm. Explanation. NIL.
Question Number. 12. A drill and wire gauge has holes numbered. Option A. 10 to 60. Option B. 1 to 80. Option C. 1 to 50.
Correct Answer is. 1 to 80. Explanation. Jeppesen A&P Airframe Textbook Fig.2-47.
Question Number. 15. One megohm is equal to. Option A. 1,000 ohms. Option B. 1,000,000 ohms. Option C. 100,000 ohms.
Correct Answer is. 1,000,000 ohms. Explanation. NIL.
Question Number. 80. What is the reading of the Vernier caliper scale in inches shown below?. Option A. 0.1816. Option B. 1.816. Option C. 1.8016.
Correct Answer is. 1.816. Explanation. BL/3-4 2.5 and fig 1.
Question Number. 37. The correct size spanner for use on a unified 5/16 in. threaded hexagon headed bolt is. Option A. 5/16 in A/F. Option B. 1/2 in A/F. Option C. 1/4 in A/F.
Correct Answer is. 1/2 in A/F. Explanation. NIL.
Question Number. 46. What should the point angle of a drill be if it is to be used for drilling titanium (drill size below 1/4 inch diameter)? Option A. 90° to 105°. Option B. 105 to 120°. Option C. 90°.
Correct Answer is. 105 to 120°. Explanation. BL/6-18 6.
Question Number. 75. What should be the included angle of a twist drill for hard metal?. Option A. 90 degrees. Option B. 100 degrees. Option C. 118 degrees.
Correct Answer is. 118 degrees. Explanation. Jeppesen A&P Airframe Technician Textbook Page 2-27.
Question Number. 88. What is the clearance angle on a normal twist drill?. Option A. 130 degrees. Option B. 59 degrees. Option C. 12 degrees.
Correct Answer is. 12 degrees. Explanation. NIL.
Question Number. 33. The metric micrometer reading shown is. Option A. 13.87 mm. Option B. 13.37 mm. Option C. 10.337 mm.
Correct Answer is. 13.37 mm. Explanation. NIL.
Question Number. 18. The web angle of a normal twist drill is. Option A. 59°. Option B. 12°. Option C. 130°.
Correct Answer is. 130°. Explanation. Jeppesen A&P Airframe Textbook 2-27.
Question Number. 60. A 3 ½ bit multimeter will indicate readings up-to. Option A. 9999. Option B. 999 ½. Option C. 1999.
Correct Answer is. 1999. Explanation. A&P General Textbook CH3-109 PG 167 Para 2A, and Eismin Aircraft Electricity and Electronics 5th edition P171.
Question Number. 96. The thimble of an English micrometer is divided into. Option A. 50 equal divisions. Option B. 40 equal divisions. Option C. 25 equal divisions.
Correct Answer is. 25 equal divisions. Explanation. BL/3-5 fig 1.
Question Number. 29. The vernier scale on an English caliper is divided into. Option A. 50 equal divisions. Option B. 40 equal divisions. Option C. 25 equal divisions.
Correct Answer is. 25 equal divisions. Explanation. Jeppesen A&P General Textbook 9-36.
Question Number. 51. An inside micrometers normal measurement range is. Option A. ½ in. to 10in. Option B. 2in. to 10in. Option C. 2in. to 12in.
Correct Answer is. 2in. to 12in. Explanation. BL/3-5 para 3.2 under Note.
Question Number. 4. How many teeth per inch are there on a fine hacksaw blade?. Option A. 64. Option B. 16. Option C. 32.
Correct Answer is. 32. Explanation. Jeppesen A&P Technician General Textbook Page 13.
Question Number. 76. The threads per inch on the spindle of an English micrometer are. Option A. 40 t.p.i. Option B. 50 t.p.i. Option C. 25 t.p.i.
Correct Answer is. 40 t.p.i. Explanation. BL/3-5 4.1.
Question Number. 61. The resolution a bevel protractor can be read to is. Option A. 50' minutes. Option B. 5' minutes. Option C. 1 º.
Correct Answer is. 5' minutes. Explanation. BL/3-4 5.2.
Question Number. 30. The thimble of a metric micrometer is divided into. Option A. 50 equal divisions. Option B. 40 equal divisions. Option C. 25 equal divisions.
Correct Answer is. 50 equal divisions. Explanation. NIL.
Question Number. 1. How many strokes per minute should generally be used with a hacksaw?. Option A. 60. Option B. 30. Option C. 55.
Correct Answer is. 55. Explanation. NIL.
Question Number. 69. The Vernier scale of a Bevel Protractor is shown below. What is the reading?. Option A. 38º 45'minutes. Option B. 86º 15'minutes. Option C. 63º 15' minutes.
Correct Answer is. 63º 15' minutes. Explanation. NIL.
Question Number. 45. What should be the included angle of a twist drill for soft metals?. Option A. 118 degrees. Option B. 65 degrees. Option C. 90 degrees.
Correct Answer is. 90 degrees. Explanation. Jeppesen A&P Airframe Technician Textbook Page 2-27.
Question Number. 106. When carrying out a continuity test on a circuit when a known resistance exists, what instrument would you use?. Option A. A lamp and battery. Option B. A high resistance insulation tester. Option C. A multimeter.
Correct Answer is. A multimeter. Explanation. NIL.
Question Number. 86. What comprises a full set of BA taps?. Option A. A taper, second and plug tap. Option B. A taper and second tap. Option C. A taper and plug tap.
Correct Answer is. A taper and plug tap. Explanation. Most tap sets are sets of 3. Except BA tap sets which do not have a second tap.
Question Number. 10. The abbreviation 'A/F' means. Option A. American Fine. Option B. Across Flats. Option C. Associated Fine.
Correct Answer is. Across Flats. Explanation. CAAIP S Leaflet 9-3 Pg.7.
Question Number. 66. Which electrical measuring device needs a power source?. Option A. A voltmeter. Option B. An ohmmeter. Option C. An ammeter.
Correct Answer is. An ohmmeter. Explanation. Aircraft Electricity and Electronics. Eismin 5th Edition page 165.
Question Number. 81. What does the cut of a file refer to?. Option A. Arrangement of the teeth. Option B. Number of teeth per inch. Option C. Grade.
Correct Answer is. Arrangement of the teeth. Explanation. A&P Technician Airframe Textbook Page 220.
Question Number. 83. How are files classified?. Option A. By length, grade and material. Option B. By length, grade, cut and section. Option C. By length, grade, cut, section and material.
Correct Answer is. By length, grade, cut and section. Explanation. NIL.
Question Number. 47. How are pin punches classified?. Option A. By length and diameter of the small end. Option B. By overall length and type. Option C. By type and diameter of the small end.
Correct Answer is. By type and diameter of the small end. Explanation. How are spring dividers classified?.
Question Number. 39. What is used to measure the depth of a blend after a corrosion repair?. Option A. Dial Test Indicator. Option B. Straight edge and slip gauges. Option C. Vernier caliper.
Correct Answer is. Dial Test Indicator. Explanation. AL/7-14 Page 12. BL/4-20 Page 9.
Question Number. 55. Which cut of a file should be used on mild steel?. Option A. Single cut. Option B. Double cut. Option C. Second cut.
Correct Answer is. Double cut. Explanation. NIL.
Question Number. 123. When measuring a square waveform with a multimeter, what voltage does it display?. Option A. Less than RMS value. Option B. More than RMS value. Option C. Equal to RMS value.
Correct Answer is. Equal to RMS value. Explanation. A multimeter measures RMS of whatever waveform it is measuring.
Question Number. 113. How does a windy drill get its power? Option A. Spur gears. Option B. Impeller. Option C. Bevel gears.
Correct Answer is. Impeller. Explanation. Windy drills have an impeller to derive power from the air pressure.
Question Number. 114. How are taper reamers classified?. Option A. Length, diameter of large end, and diameter of small end. Option B. Taper and diameter of small end. Option C. Length and diameter of large end.
Correct Answer is. Length and diameter of large end. Explanation. Taper reamers are normally classified by a number 1-10, but if not, by diameter of large end.
Question Number. 58. What is a key-seat rule used for?. Option A. Marking lines which are parallel to a true edge. Option B. Marking lines parallel to an axis of a round bar. Option C. Providing a positive driving force.
Correct Answer is. Marking lines parallel to an axis of a round bar. Explanation. NIL.
Question Number. 102. A crimped electrical connection is suspected to be high resistance. How would you verify this without disconnecting the circuit?. Option A. Measure the millivolt drop across the connection with a millivolt meter. Option B. Measure the resistance with an ohmmeter. Option C. Measure the resistance with a 250 volt megger.
Correct Answer is. Measure the millivolt drop across the connection with a millivolt meter. Explanation. EEL/1-6 4.3.
Question Number. 124. If an ammeter reads 0 - 1mA FSD, what would you be required to do to enable it to read 10mA FSD?. Option A. Place a 5.8 ohm resistor as a shunt in parallel with the meter. Option B. Place a 9.9 ohm resistor across the coils. Option C. Place a 9 ohm resistor in series with the meter.
Correct Answer is. Place a 5.8 ohm resistor as a shunt in parallel with the meter. Explanation. No calculation necessary (nor possible, with information given). A shunt is used with an ammeter to bypass unwanted current.
Question Number. 67. When measuring voltage or current with a digital multimeter, the indication is. Option A. Average values. Option B. peak values. Option C. RMS values.
Correct Answer is. RMS values. Explanation. A&P General Textbook Page 3-94. DMMs are 'Average-Responding' meaning they read RMS if AC.
Question Number. 73. Which of the following reamers would you use in a hole having a keyway?. Option A. Expanding reamer. Option B. Spiral fluted reamer. Option C. Parallel reamer.
Correct Answer is. Spiral fluted reamer. Explanation. NIL.
Question Number. 43. What type of flutes should be used in a reamer for cutting titanium?. Option A. Spiral flutes. Option B. Straight flutes. Option C. Tapered flutes.
Correct Answer is. Spiral flutes. Explanation. BL/6-18 7.1.
Question Number. 105. If the leads of a bonding tester are damaged, what is the procedure?. Option A. The damaged leads and the tester should be returned to the manufacturer for repair and calibration. Option B. Provided that the damage is situated close to the end of the leads the cable may be shortened. Option C. A new lead may be manufactured using the correct current rated cable.
Correct Answer is. The damaged leads and the tester should be returned to the manufacturer for repair and calibration. Explanation. Leaflet 9-1 3.1.1. & EEL/1-6 Para 3.11.2.
Question Number. 85. What does the term 'second cut' indicate as applied to hand files?. Option A. The grade of the file. Option B. The section of the file. Option C. A reconditioned file.
Correct Answer is. The grade of the file. Explanation. NIL.
Question Number. 48. The length of the legs. Option A. The length of the legs. Option B. The diameter of a circle scribed with the legs at 600. Option C. The diameter of the largest circle that can be scribed.
Correct Answer is. The length of the legs. Explanation. NIL.
Question Number. 104. On a long coaxial cable how would you check for discontinuities and shorts in situ?. Option A. Continuity tester. Option B. Safety ohmmeter. Option C. Time Domain Reflectometer.
Correct Answer is. Time Domain Reflectometer. Explanation. A TDR will find damaged bits of long coax runs. One version of this question says Time 'Delay' Reflectometer - which means the same thing.
Question Number. 121. What is a countersink tool used for?. Option A. To prevent damage to pipework in a blind hole. Option B. To adjust the depth of a countersink. Option C. To adjust the angle of a countersink.
Correct Answer is. To adjust the depth of a countersink. Explanation. The countersink tool is to cut and adjust depths of the countersink.
Question Number. 56. Which of the following statements is correct?. Option A. To cut thin mild steel plate use a coarse blade. Option B. To cut an aluminium block use a fine hacksaw blade. Option C. To cut thin sheet metal use a fine blade.
Correct Answer is. To cut thin sheet metal use a fine blade. Explanation. AC65-9A Chapt 12-Metal Cutting Tools.
Question Number. 52. What is the purpose of Target Points on a Vernier caliper?. Option A. To enable spring dividers to be accurately set. Option B. To zero the caliper. Option C. For scribing lines inside tubes.
Correct Answer is. To enable spring dividers to be accurately set. Explanation. BL/3-4 3.6.
Question Number. 82. Why are teeth of hacksaw blades off-set?. Option A. To allow a quick cutting positive action. Option B. To provide greater strength. Option C. To provide clearance for non-cutting part of the blade.
Correct Answer is. To provide clearance for non-cutting part of the blade. Explanation. NIL.
Question Number. 71. When is a coarse hacksaw blade used?. Option A. When cutting material of thick cross section. Option B. When cutting ferrous metals only. Option C. When cutting material of thin cross section.
Correct Answer is. When cutting material of thick cross section. Explanation. Jeppesen A&P General Technician Textbook Page 9-13.
Question Number. 103. How would you measure continuity of a coaxial cable?. Option A. With a safety ohmmeter. Option B. With a reflectometer. Option C. With a 250 volt megger.
Correct Answer is. With a reflectometer. Explanation. Other versions of this question say Time Domain Reflectometer, or Time Delay Reflectometer.
Question Number. 8. To carry out an insulation test on a wire rated at 115 volts you would use. Option A. a 250 volt megger. Option B. a 115 volt megger. Option C. a 500 volt megger.
Correct Answer is. a 250 volt megger. Explanation. CAAIP S Leaflet 9-1, 4.4.2 As a rule of thumb, the megger should be twice the voltage of the system under test.
Question Number. 137. In a moving coil meter the deflecting force is provided by. Option A. a soft iron permanent magnet. Option B. a current carrying coil pivoted in a permanent magnet field. Option C. hairsprings which move the pointer towards full scale.
Correct Answer is. a current carrying coil pivoted in a permanent magnet field. Explanation. Aircraft Electricity and Electronics. Eismin 5th Edition page 159.
Question Number. 26. The test equipment normally used to carry out a continuity test on an electrical cable is. Option A. a high tension circuit tester. Option B. an ammeter. Option C. a low reading ohmmeter.
Correct Answer is. a low reading ohmmeter. Explanation. CAIP EEL/1-6 4.2.1 & CAAIP S Leaflet 9-1 4.2.1.
Question Number. 135. To carry out a continuity test you would use. Option A. ammeter. Option B. an HT circuit tester. Option C. a low reading ohmmeter.
Correct Answer is. a low reading ohmmeter. Explanation. NIL.
Question Number. 77. The spring loaded ratchet attached to the spindle of a standard external micrometer produces. Option A. a pre-set feel during use. Option B. a means for controlling thread binding. Option C. a smooth free run during use.
Correct Answer is. a pre-set feel during use. Explanation. BL/3-5 2.2.
Question Number. 89. When tapping blind holes. Option A. a set of three taps is used. Option B. a set of two taps is used. Option C. a single tap is used.
Correct Answer is. a set of three taps is used. Explanation. NIL.
Question Number. 101. Taper reamers are classified by. Option A. a type number (1 to 10). Option B. the diameter of the small end. Option C. the diameter of the large end.
Correct Answer is. a type number (1 to 10). Explanation. Taper reamers are classified by a type number 1- 10.
Question Number. 7. When using the old style vernier caliper for taking internal measurements. Option A. add the nib measurements. Option B. subtract the nib measurements. Option C. the nib size has no relevance and can be ignored.
Correct Answer is. add the nib measurements. Explanation. Jeppesen A&P General Textbook 9-39.
Question Number. 25. When torque loading, a wrench should be selected where the required value falls. Option A. at the top end of the range. Option B. in the middle of the range. Option C. at the bottom end of the range.
Correct Answer is. at the top end of the range. Explanation. CAIP S BL/6-30 4.5.1.
Question Number. 115. An AC voltmeter reads. Option A. peak value. Option B. peak to peak value. Option C. average value.
Correct Answer is. average value. Explanation. An AC voltmeter (known as Average Responding) measures RMS.
Question Number. 100. An avometer can measure alternating current because it has a. Option A. moving coil. Option B. bridge rectifier circuit. Option C. moving iron.
Correct Answer is. bridge rectifier circuit. Explanation. Aircraft Electricity and Electronics. Eismin 5th Edition page 113 and 167 read together.
Question Number. 65. Torque loading is determined by multiplying the tangent force applied at the free end of the spanner. Option A. by the dia. of the bolt and the distance of its point of application. Option B. by the distance moved by the point of application. Option C. by its distance of application from the axis of the bolt.
Correct Answer is. by its distance of application from the axis of the bolt. Explanation. Leaflet 2-11 pg 3 para 4.2.
Question Number. 132. Tension files. Option A. can be used to cut in one direction only. Option B. clog easily. Option C. can cut in either direction.
Correct Answer is. can cut in either direction. Explanation. Also known as an ABRAFILE.
Question Number. 40. Vacu-blast beads re-used on a steel component, after being used on an aluminium component will. Option A. cause clogging of the vacu-blast machine. Option B. be ineffective in abrasion. Option C. cause corrosion to the steel component.
Correct Answer is. cause corrosion to the steel component. Explanation. NIL.
Question Number. 116. A hydrometer is used to. Option A. check battery electrolyte specific gravity. Option B. check battery electrolyte density. Option C. take humidity reading.
Correct Answer is. check battery electrolyte specific gravity. Explanation. Specific gravity is the density relative to water at 4 degrees C.
Question Number. 54. A Dial Test Indicator may be used for. Option A. checking a round bar for bow. Option B. checking dimensions to within 0.125''. Option C. checking any known depth.
Correct Answer is. checking a round bar for bow. Explanation. EL/3-3 fig 1.
Question Number. 142. When operating a grease gun, you. Option A. verify grease fitting can accept grease by hand feel. Option B. apply a pressure of 50 - 80 psi. Option C. clean grease fitting with clean dry cloth beforehand.
Correct Answer is. clean grease fitting with clean dry cloth beforehand. Explanation. NIL.
Question Number. 53. Die Nuts are used to. Option A. form internal threads. Option B. form external threads. Option C. clean up damaged threads.
Correct Answer is. clean up damaged threads. Explanation. NIL.
Question Number. 122. PIDG crimp tools are marked by. Option A. wire crimp size on tool only. Option B. coloured handles and wire crimp size on tool. Option C. coloured handles only.
Correct Answer is. coloured handles and wire crimp size on tool. Explanation. Leaflet 9-3 fig 2. Handles are red, blue or yellow and the AWG is stamped on the jaws.
Question Number. 138. The force acting on a meter which returns the pointer to zero is called the. Option A. turning force. Option B. deflecting force. Option C. controlling force.
Correct Answer is. controlling force. Explanation. NIL.
Question Number. 133. The scale on an ohmmeter is. Option A. cramped at high resistance. Option B. linear. Option C. cramped at low resistance.
Correct Answer is. cramped at high resistance. Explanation. Aircraft Electricity and Electronics. Eismin 5th Edition page 169 photo, fig 8-26.
Question Number. 36. Cross cut files. Option A. cut on the backward stroke only. Option B. cut in both directions. Option C. cut on the forward stroke only.
Correct Answer is. cut on the forward stroke only. Explanation. NIL.
Question Number. 9. The normal drill angles are. Option A. cutting angle 59°, web angle 130° and clearance angle 12°. Option B. cutting angle 130°, web angle 59° and clearance angle 12°. Option C. cutting angle 12°, web angle 130° and clearance angle 130°.
Correct Answer is. cutting angle 59°, web angle 130° and clearance angle 12°. Explanation. NIL.
Question Number. 16. Reamers are used to. Option A. drill accurate holes. Option B. to make holes oversize. Option C. enlarge holes to accurate dimensions.
Correct Answer is. enlarge holes to accurate dimensions. Explanation. Jeppesen A&P General Textbook 9-19.
Question Number. 95. When using a bench grinding machine the wheel rotates. Option A. from the top down towards the work piece. Option B. either direction as selected on starting the machine. Option C. from the bottom upwards past the work piece.
Correct Answer is. from the top down towards the work piece. Explanation. NIL.
Question Number. 19. The leads of a bonding tester. Option A. are interchangeable, one 60 foot long having two prongs and a 6 foot one with a single prong. Option B. have critical lengths and the resistance of the leads is accounted for. Option C. are supplied in 60 foot and 6 foot lengths but can be varied due to wear.
Correct Answer is. have critical lengths and the resistance of the leads is accounted for. Explanation. CAIP S EEL/1-6 Para 3-11-2 & CAAIP S Leaflet 9.1 3.10.2(b).
Question Number. 42. Centre punches are made of. Option A. high carbon steel with the tip hardened and tempered. Option B. case hardened mild steel. Option C. high carbon steel hardened and tempered.
Correct Answer is. high carbon steel hardened and tempered. Explanation. The whole centre punch is hardened and tempered.
Question Number. 141. The resistance of a voltmeter must be. Option A. high so that little current passes through it. Option B. low to prevent overloading the circuit. Option C. low to provide a parallel path for the circuit current.
Correct Answer is. high so that little current passes through it. Explanation. Aircraft Electricity and Electronics. Eismin 5th Edition page 164.
Question Number. 125. The internal resistance of a voltmeter is. Option A. no more than 0.05 ohms. Option B. low. Option C. high.
Correct Answer is. high. Explanation. Aircraft Electricity and Electronics. Eismin 5th Edition page 164.
Question Number. 14. If the leads of a megger are held apart. Option A. the spring will return the needle to infinity. Option B. the spring will return the needle to the zero stop. Option C. if the handle was turned the meter would read infinity.
Correct Answer is. if the handle was turned the meter would read infinity. Explanation. A megger has no spring.
Question Number. 32. Vee-blocks are manufactured. Option A. as single items and may be paired with any other vee-block. Option B. in sets of two and identified for use as a set. Option C. in sets of three and identified for use as a set.
Correct Answer is. in sets of two and identified for use as a set. Explanation. NIL.
Question Number. 21. The main scale on a 24/25 vernier caliper is divided into. Option A. inches, tenths and twentieths. Option B. inches, tenths and fortieths. Option C. inches, tenths and thousandths.
Correct Answer is. inches, tenths and fortieths. Explanation. CAIP S BL/3-4 2.
Question Number. 41. The main scale on a 49/50 Vernier caliper is divided into. Option A. inches, tenths and thousandths. Option B. inches, tenths and twentieths. Option C. inches, tenths and fortieths.
Correct Answer is. inches, tenths and twentieths. Explanation. NIL.
Question Number. 70. Three point micrometers are for measuring. Option A. internal dimensions. Option B. external dimensions. Option C. linear dimensions.
Correct Answer is. internal dimensions. Explanation. BL/3-5 3.4.
Question Number. 120. To measure AC with a moving coil, it. Option A. can be directly connected. Option B. is rectified and measures peak value. Option C. is rectified and measures average value.
Correct Answer is. is rectified and measures average value. Explanation. Also known as a D'Arsonval meter. See Jeppesen A&P General Textbook Section 3. Note that the word 'Average' is incorrect because the meter reads RMS, but average is the closest of the three answers.
Question Number. 34. A ketts saw is used because. Option A. it can cut thicker metal than is required by most repair schemes. Option B. it is available both pneumatic and electric. Option C. its low torque allows single handed use.
Correct Answer is. it can cut thicker metal than is required by most repair schemes. Explanation. Jeppesen A&P Airframe Textbook. It describes it as electrical, with the advantage of being able to cut sheet to 3/16 inch thick. Care to be taken to prevent blade from 'grabbing and kicking back'.
Question Number. 110. On twist drill chart, small drills have. Option A. smallest numbers. Option B. largest numbers. Option C. their sizes in fractions, in inches.
Correct Answer is. largest numbers. Explanation. Numbered drill go from 80 (0.0135 inches - smallest) to 1 (0.228 inches - largest) and are then lettered.
Question Number. 107. Taper pins are classified by. Option A. length and diameter of large end. Option B. length and diameter of small end. Option C. length and taper.
Correct Answer is. length and diameter of small end. Explanation. Leaflet 2-5 11. BL/6-13 11.
Question Number. 140. The resistance of an ammeter must be. Option A. high to create a large volts drop across it. Option B. low to prevent volts drop across it. Option C. low because the ammeter is in parallel with the circuit.
Correct Answer is. low to prevent volts drop across it. Explanation. Aircraft Electricity and Electronics. Eismin 5th Edition page 162/3.
Question Number. 126. The internal resistance of an ammeter is. Option A. low. Option B. 1 ohm. Option C. high.
Correct Answer is. low. Explanation. Aircraft Electricity and Electronics. Eismin 5th Edition page 162.
Question Number. 11. A rivet shaver is used to. Option A. mill the head flush. Option B. mill the tail after cutting. Option C. mill the tail after setting.
Correct Answer is. mill the head flush. Explanation. Jeppesen A&P Airframe Textbook 2-68.
Question Number. 3. A micro-shaver is used to. Option A. cut rivets to length prior to forming. Option B. mill the rivet head after forming. Option C. trim the shank diameter prior to forming.
Correct Answer is. mill the rivet head after forming. Explanation. A&P Technician Airframe Textbook 2-37 and 2-68.
Question Number. 92. The main scale of a Metric Vernier Caliper is calibrated in. Option A. millimetres. Option B. micro-meters. Option C. millimetres and half millimetres.
Correct Answer is. millimetres and half millimetres. Explanation. BL/3-4 2.5.1
Question Number. 108. Live AC circuits are to be checked for open circuits by the use of. Option A. multimeter set to AC volts. Option B. ammeter set to amps. Option C. ohmmeter set to megohms.
Correct Answer is. multimeter set to AC volts. Explanation. A voltmeter would be used because it does not require the breaking of the circuit.
Question Number. 13. A 250 volt megger should not be used. Option A. on electronic equipment. Option B. in fuel tanks. Option C. on radio aerials.
Correct Answer is. on electronic equipment. Explanation. Leaflet 9-1 4.4.4.
Question Number. 72. A voltage drop across a component is measured by placing the meter in. Option A. parallel with the component. Option B. series with he component. Option C. series with the power source.
Correct Answer is. parallel with the component. Explanation. Aircraft Electricity and Electronics. Eismin 5th Edition page 164 and CAAIP S Leaflet 9-1, 4.3.
Question Number. 111. The Sine Bar is used to. Option A. check accuracy of slip gauges. Option B. produce angles using slip gauges. Option C. by itself to calculate angles.
Correct Answer is. produce angles using slip gauges. Explanation. Workshop Technology Part 2 WAJ Chapman Pg.57.
Question Number. 20. Expanding reamers are used to. Option A. ream holes of different diameters by adjusting the position of the blades. Option B. ream tapered holes. Option C. ream holes in metal that has been heated.
Correct Answer is. ream holes of different diameters by adjusting the position of the blades. Explanation. Jeppesen A&P Technician General Textbook Page 9-19.
Question Number. 78. The purpose of the land on a twist drill is to. Option A. to allow clearance for swarf. Option B. reduce friction. Option C. present the cutting edge at the required angle.
Correct Answer is. reduce friction. Explanation. Jeppesen A&P Airframe Technician Textbook Page 2-27.
Question Number. 130. A mill file can be used for. Option A. corners less than 60 degrees. Option B. saw sharpening. Option C. general purpose.
Correct Answer is. saw sharpening. Explanation. External document. http://www.rockler.com/tech/12369.pdf
Question Number. 87. The teeth on a hacksaw blade. Option A. does not matter which way they point. Option B. should point away from the handle. Option C. should point towards the handle.
Correct Answer is. should point away from the handle. Explanation. NIL.
Question Number. 6. When using a moving coil as an ammeter the greatest amount of current flows through the. Option A. bushes. Option B. coil. Option C. shunt.
Correct Answer is. shunt. Explanation. Jeppesen A&P Technician General Textbook Page 3-89.
Question Number. 128. Needle grease points are used on. Option A. items with gland seals. Option B. small pivoted joints. Option C. large pivoted joints.
Correct Answer is. small pivoted joints. Explanation. Needle grease points are flush grease nipples which require a pointed adapter on the grease gun.
Question Number. 35. The gears used in a pistol windy are. Option A. gears in a gearbox. Option B. gyrator type gears. Option C. spur gears.
Correct Answer is. spur gears. Explanation. Sun and planet gear reduction, using spur gears.
Question Number. 49. The purpose of a taper tap is to. Option A. produce a fine thread. Option B. start a thread. Option C. form a tapered thread.
Correct Answer is. start a thread. Explanation. NIL.
Question Number. 118. A hygrometer is used to. Option A. check battery electrolyte relative density. Option B. take humidity reading. Option C. check battery electrolyte specific gravity.
Correct Answer is. take humidity reading. Explanation. A hygrometer measures humidity.
Question Number. 119. A hygrometer is used to. Option A. check battery electrolyte relative density. Option B. take humidity reading. Option C. check battery electrolyte specific gravity.
Correct Answer is. take humidity reading. Explanation. A hygrometer measures humidity.
Question Number. 31. The measuring capacity of a Vernier Caliper is. Option A. the length of the graduated scale less the length of the vernier scale. Option B. the length of the graduated scale. Option C. the length of the graduated scale plus the width of the nibs.
Correct Answer is. the length of the graduated scale less the length of the vernier scale. Explanation. NIL.
Question Number. 94. The pitch of a hacksaw blade is. Option A. the number of teeth per inch. Option B. its length. Option C. the number of teeth on the blade.
Correct Answer is. the number of teeth per inch. Explanation. NIL.
Question Number. 90. On a torque wrench the torque loading is. Option A. the tangential application of the force divided by the perpendicular distance to the centre of the bolt. Option B. the tangential application of the force times the perpendicular distance to the centre of the bolt. Option C. the tangential application of the force plus the perpendicular distance to the centre of the bolt.
Correct Answer is. the tangential application of the force times the perpendicular distance to the centre of the bolt. Explanation. Leaflet 2-11 pg 3 para 4.2.
Question Number. 98. The vernier height gauge uses the same principle as. Option A. the vernier caliper. Option B. the micrometer. Option C. the bevel protractor.
Correct Answer is. the vernier caliper. Explanation. BL/3-4 4.
Question Number. 117. A pyrometer is a. Option A. thermometer for use at high temperature. Option B. pyramid shaped altimeter. Option C. foam/granule fire extinguisher.
Correct Answer is. thermometer for use at high temperature. Explanation. A pyrometer measures high temperature.
Question Number. 50. Why is the Vee cut in the base of a scribing block?. Option A. to reduce the contact area with the marking off table and reduce friction. Option B. to allow the scribing block to be used on the edge of the marking off table. Option C. to trap any dirt that may be adhering to the surface of the marking off table.
Correct Answer is. to trap any dirt that may be adhering to the surface of the marking off table. Explanation. NIL.
Question Number. 131. A rawhide mallet is. Option A. available with copper inserts. Option B. less expensive than bossing mallet. Option C. used for giving softer blows than boxwood mallet.
Correct Answer is. used for giving softer blows than boxwood mallet. Explanation. NIL.
Question Number. 22. The vernier height gauge uses the same principle as the. Option A. vernier caliper. Option B. bevel protractor. Option C. micrometer.
Correct Answer is. vernier caliper. Explanation. CAIP S BL/3-4 4.
Question Number. 109. A multiplier resistance is used to extend the working range of the. Option A. ammeter. Option B. voltmeter. Option C. ohmmeter.
Correct Answer is. voltmeter. Explanation. Multipliers are used with voltmeters. A&P Airframe Technician Textbook.
Question Number. 84. Hammers are classified by. Option A. shape of head and length of shaft. Option B. weight and length of shaft. Option C. weight and type of head.
Correct Answer is. weight and type of head. Explanation. NIL.
Question Number. 57. A power meter indicates that a circuit has a power of 4 kW. Separate readings of the voltage and current are 400 V and 20 A respectively. The Power factor is. Option A. 2. Option B. ½. Option C. 20.
Correct Answer is. ½. Explanation. PF = TP/AP TP = 4,000 AP = 20 * 400 = 8000 4000/8000 = 1/2.
