M7 Part 1

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  • 1/20 Questions

    To locate fault in the AC wiring, one should refer to the:

    • Wiring diagram manual
    • Maintenance manual
    • Component location diagram manual
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M7 part 1
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Mechanics Quizzes & Trivia

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  • 2. 

    A piece of metal structure has surface pitting and etching covered with white powdery deposit, based on this evidence you would consider that it is

    • Aluminum alloy or magnesium

    • Copper or copper alloy

    • Iron or steel

    Correct Answer
    A. Aluminum alloy or magnesium
  • 3. 

    When taxiing an aircraft in a ramp a flashing green light is signaled  from a tower, would indicate that the aircraft

    • Must return to the starting point

    • May commence taxiing

    • Must exercise extreme caution

    Correct Answer
    A. May commence taxiing
  • 4. 

    When a replenishment cart contains both oxygen and nitrogen cylinders, nitrogen would be

    • Significantly larger than oxygen bottles

    • Mounted in the opposite direction to the oxygen bottles and have different hose connection

    • Greater in number and colored black and white.

    Correct Answer
    A. Mounted in the opposite direction to the oxygen bottles and have different hose connection
  • 5. 

    After finding severe skin damage resulting from a lightning strike, all control surfaces must be inspected to check for damage because

    • Unsatisfactory bonding may have allowed static discharge across hinge bearings, burning, breakup or seizure

    • The hinge bearing may have become magnetized

    • The mass balance of the control surface may have change

    Correct Answer
    A. Unsatisfactory bonding may have allowed static discharge across hinge bearings, burning, breakup or seizure
  • 6. 

    A set of wheel bearing requires grease remove and cleaning prior to inspection as acceptable cleaning method would be

    • To use a commercial chemical based cleaner to soak the bearing, then spin the bearing dry using shop air

    • To use a stream cleaner, as it will remove stubborn residue and leave the bearing warm so that if will dry quickly

    • To soak the bearing insolvent to soften the grease and any harden deposit,, with the bearing using a clean solvent and finally blow dry using low pressure dry compressed air

    Correct Answer
    A. To soak the bearing insolvent to soften the grease and any harden deposit,, with the bearing using a clean solvent and finally blow dry using low pressure dry compressed air
  • 7. 

    It should be possible to install the control rigging pin easily if the:

    • Final alignment of the control system is correct.

    • Cable tension is low

    • Cable tension is excessive

    Correct Answer
    A. Final alignment of the control system is correct.
  • 8. 

    It is highly dangerous to operate the halves of pressurized ______cylinders with greasy hand

    • Oxygen

    • Nitrogen

    • Acetylene

    Correct Answer
    A. Oxygen
  • 9. 

    Defueling of AC must be carried out

    • Outside a hanger where there are no fire hazards

    • In a hanger where there is no wind or fire hazards

    • Into clean drums but no straight into a fuel tank.

    Correct Answer
    A. Outside a hanger where there are no fire hazards
  • 10. 

    To measure the electrical resistance of a fire bottle squib:

    • A megger is used

    • Any ohmmeter is used

    • A safety ohmmeter is used

    Correct Answer
    A. A safety ohmmeter is used
  • 11. 

    A control chain should be rejected if:

    • If has twists or kinks of more than 2 degree

    • It has any evidence of twists or kinks

    • It has twists or kinks of more than 5 degress

    Correct Answer
    A. It has any evidence of twists or kinks
  • 12. 

    The bearing of a pulley in a cable control system

    • Is normally prepacked with grease

    • Should be lubricated with a spray type lubricant only

    • Must be lubricated with grease after every flight

    Correct Answer
    A. Is normally prepacked with grease
  • 13. 

    A wheel bearing cup has water marking. The marking area is not rusted. The bearing should

    • Reinstalled and re-inspected for an deterioration at the next schedule inspection

    • Reinstalled as water marking is common and not cause for bearing failure

    • Reject as water marks area are an indication of inter-granular corrosion

    Correct Answer
    A. Reject as water marks area are an indication of inter-granular corrosion
  • 14. 

    The smallest graduated grading on a metric vernier caliper is

    • 0.02mm

    • 0.5mm

    • 0.001mm

    Correct Answer
    A. 0.02mm
  • 15. 

    The thread on the spindle of an English micrometer has a pitch of

    • 100 threads per inch, and one complete turn off the thimble will move 0.025 inch

    • 40 threads per inch, and one complete turn off the thimble will move 0.025 inch

    • 50 threads per inch, and one complete turn off the thimble will move 0.025 inch

    Correct Answer
    A. 40 threads per inch, and one complete turn off the thimble will move 0.025 inch
  • 16. 

    If a 25 inch torque wrench fitting with a 5 inch extension shows a dial reading of 100 inch pounds, the actual torque loading on a bolt would be

    • 80 inch pounds

    • 130 pounds

    • 120 pounds

    Correct Answer
    A. 120 pounds
  • 17. 

     If mercury is spilled in the cargo hold of an aircraft it will have the most damaging effect on structure containing

    • Magnesium

    • Aluminum alloy

    • Titanium

    Correct Answer
    A. Aluminum alloy
  • 18. 

    When refueling from a hydrant cart containing Jet Aluminum fuel the decal marking should be coloured

    • Blue with white lettering

    • Black with white lettering

    • Red with white lettering

    Correct Answer
    A. Black with white lettering
  • 19. 

    Loads on the surface of the wing during normal flight will result in

    • Compression of the upper surface and both compression and tension on the lower surface

    • Tension of the upper surface and compression of the lower surface

    • Compression of the upper surface and tension of the lower surface

    Correct Answer
    A. Compression of the upper surface and tension of the lower surface
  • 20. 

    When inspecting the gear teeth on the helical input pinion gear, the tooth contact pattern is found to be too high. This condition will

    • Result in insufficient fear backlash and inadequate gear tooth gear tooth lubrication.

    • Not be adjustable and required gear replacement

    • Allow excessive gear backlash and overloading of the gear teeth

    Correct Answer(s)
    A. Result in insufficient fear backlash and inadequate gear tooth gear tooth lubrication.
    A. Allow excessive gear backlash and overloading of the gear teeth

Quiz Review Timeline (Updated): Jan 7, 2013 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Jan 07, 2013
    Quiz Edited by
    ProProfs Editorial Team
  • Sep 30, 2009
    Quiz Created by
    Cyberedward
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