2A654 Volume 3

31 Questions | Total Attempts: 384

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Volume Quizzes & Trivia

Volume three of the Air Force's aircraft fuel systems journeyman course


Questions and Answers
  • 1. 
    What type of fuselage construction uses a fabric or thin metal covering, and may be found on small, lightweight aircraft?
    • A. 

      Truss

    • B. 

      Cantilever

    • C. 

      Monocoque

    • D. 

      Semimonocoque

  • 2. 
    In what type of aircraft fuselage construction does weight become a problem?
    • A. 

      Truss

    • B. 

      Cantilever

    • C. 

      Monocoque

    • D. 

      Semimonocoque

  • 3. 
    Which assembly includes the aft end of the fuselage of conventionally designed aircraft?
    • A. 

      Fairing

    • B. 

      Ailerons

    • C. 

      Empennage

    • D. 

      Trailing edge

  • 4. 
    Which flight control surface controls the directional movement about the axis of an aircraft?
    • A. 

      Critical

    • B. 

      Primary

    • C. 

      Auxiliary

    • D. 

      Secondary

  • 5. 
    Which of the following are examples of secondary flight controls?
    • A. 

      Ailerons

    • B. 

      Rudders

    • C. 

      Trim tabs

    • D. 

      Elevators

  • 6. 
    Which situation describes an ideal installation of a bolt on an aircraft component?
    • A. 

      The grip length of the bolt is slightly shorter than the thickness of the materials being joined.

    • B. 

      The grip length of the bolt is the same as the thickness of the materials being joined.

    • C. 

      The grip length of the bolt is is slightly longer than the thickness of the materials being joined.

    • D. 

      The grip length of the bolt is much longer than the thickness of the materials being joined.

  • 7. 
    The size of a bolt is generally stated in terms of its
    • A. 

      Weight, diameter, and head size

    • B. 

      Head size, grip length, and weight

    • C. 

      Length, weight, and threads per inch

    • D. 

      Diameter, length, and threads per inch

  • 8. 
    For which of the following aircraft applications should a self-locking nut not be installed?
    • A. 

      Attachment of a pulley

    • B. 

      Attachment of an antifriction bearing

    • C. 

      Mounting an accessory near the engine

    • D. 

      Connecting sections of a movable joint

  • 9. 
    What item of hardware should be installed with scrrews and bolts whenever the self-locking or castellated nut is not used?
    • A. 

      Cotter pins

    • B. 

      Safety wire

    • C. 

      Lockwashers

    • D. 

      Plain washers

  • 10. 
    Which type of rivet is used on the top skin surface of an aircraft?
    • A. 

      Flathead

    • B. 

      Countersunk

    • C. 

      Roundhead

    • D. 

      Brazier head

  • 11. 
    What type of fastener is installed in an integral tank where access to only one side of the work is possible?
    • A. 

      Brazier head rivet

    • B. 

      Nut and bolt

    • C. 

      Jo-bolt

    • D. 

      Hi-lok

  • 12. 
    What type of tubing is used in high-pressure systems such as the landing gear system?
    • A. 

      Copper

    • B. 

      Stainless steel

    • C. 

      Titanium alloy

    • D. 

      Aluminum alloy

  • 13. 
    For what reason is aluminum alloy tubing the most widely used?
    • A. 

      It can withstand high pressures

    • B. 

      It is easily flared with hand tools

    • C. 

      It is generally heavier than other types

    • D. 

      It resists dents better than other types

  • 14. 
    What condition will likely result from the contact of tubing with a surrounding surface?
    • A. 

      Galling

    • B. 

      Chafing

    • C. 

      Scratching

    • D. 

      Delamination

  • 15. 
    Which type of tubing defect would be considered acceptable?
    • A. 

      A dent measuring 35% of the tubing diameter

    • B. 

      A scratch that measures 25% of the tubing wall thickness

    • C. 

      Several nicks measuring 15% of the tubing wall thickness

    • D. 

      A dent on the heel of a bend with less than the recommended radius

  • 16. 
    Which type of hose is a medium pressure Teflon hose with an operating temperature of 65 to 450* F?
    • A. 

      MIL-H-8794

    • B. 

      MIL-H-7938

    • C. 

      MIL-H-7061

    • D. 

      MIL-H-27267

  • 17. 
    Which example is not acceptable regarding the installation of a flexible hose assembly?
    • A. 

      Use oil to aid the installation of a self-sealing hose

    • B. 

      Install the hose so that it will not be subjected to twisting

    • C. 

      Ensure clamps are not so tight that they restrict flow

    • D. 

      Support the hose at least every 24 inches of length

  • 18. 
    What type of manifold coupling consists  of a body, nut, split washers, o-rings, and a retainer?
    • A. 

      V-band

    • B. 

      Wiggins

    • C. 

      Pneumatic

    • D. 

      Quick-disconnect

  • 19. 
    What part of a Wiggins coupling provides the sealing action?
    • A. 

      O-ring

    • B. 

      Gasket

    • C. 

      Snap ring

    • D. 

      Split washer

  • 20. 
    What minimum diameter safety wire should be installed on bolts having a .050-inch drilled hole?
    • A. 

      .020

    • B. 

      .028

    • C. 

      .032

    • D. 

      .045

  • 21. 
    Why is the use of cotter pins on aircraft systems favorable?
    • A. 

      They can be reused after removal

    • B. 

      They are stronger than safety wire

    • C. 

      They are less expensive than other pins

    • D. 

      They can be removed and installed quickly

  • 22. 
    During an integral tank inspection, you discover an area at which the protective coating is scarred and the metal is discolored. Pitting has also occurred to a depth or one mil. What degree of corrosion has taken place?
    • A. 

      Light

    • B. 

      Severe

    • C. 

      Moderate

    • D. 

      Intermediate

  • 23. 
    Moderate corrosion is normally removed from an aircraft surface by
    • A. 

      Light hand scrubbing

    • B. 

      Scrubbing with steel wool

    • C. 

      Light mechanical sanding

    • D. 

      Brushing with a steel wire brush

  • 24. 
    The extent of corrosion on an aircraft surface depends on which of the following factors?
    • A. 

      The methods used to wash or clean the area

    • B. 

      The type of metal affected by the corrosion

    • C. 

      The ambient temperature at which the aircraft is located

    • D. 

      The length of time electrolytes are in contact with the metals

  • 25. 
    Which area may be a prime location for fungus growth because of condensational buildup?
    • A. 

      Fuel manifold

    • B. 

      Landing area

    • C. 

      Integral tank

    • D. 

      Exhaust ducting