2A753 Volume 3 Structural Maintenance Journeyman

75 Questions | Total Attempts: 341

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2A753 Quizzes & Trivia

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Questions and Answers
  • 1. 
    (401) When you are installing aircraft bolts in a panel you place shims under the plate nut?
    • A. 

      Because the grip length of the bolt is slightly greater

    • B. 

      To make the bottom portion of the plate nut stronger

    • C. 

      Because material thickness being bolted together is less than the diameter of the bolt

    • D. 

      Because thread protrusion through the plate nut is more than the required two threads

  • 2. 
    (401) How can you avoid stripping threads when installing a nut and bolt?
    • A. 

      Choose the proper nut

    • B. 

      Install washers as necessary.

    • C. 

      Torque the nut to proper specifications

    • D. 

      Ensure the bolt has a proper interference fit

  • 3. 
    (402) The fastener removal tool is primarily designed for use on a
    • A. 

      Concave surface

    • B. 

      Convex surface

    • C. 

      Curved surface

    • D. 

      Flat surface

  • 4. 
    (402) The most you should turn a screw with a screw punch tool is
    • A. 

      One-eighth (⅛) turn

    • B. 

      One-quarter (¼) turn

    • C. 

      Three-eighths (3/8) turn.

    • D. 

      One-half (½) turn

  • 5. 
    (403) What nut style do you use when all bolt hole locations are equally spaced around an opening?
    • A. 

      Point wrenching

    • B. 

      Nut plates

    • C. 

      Channel.

    • D. 

      Barrel.

  • 6. 
    (403) Which nut is used where the assembly is frequently removed and you can obtain the desired tightness with your fingers?
    • A. 

      Wing

    • B. 

      Castle

    • C. 

      Plain text

    • D. 

      Catellated shear

  • 7. 
    (403) The two major types of self-locking nuts you will install are
    • A. 

      Floating and non floating

    • B. 

      Aluminum and stainless steel

    • C. 

      Interrupted thread and elastic stop

    • D. 

      Prevailing torque and free spinning

  • 8. 
    (403) You need to consider heat requirements for which prevailing torque, self-locking nut locking device?
    • A. 

      Slotted or beam

    • B. 

      Nonmetallic insert.

    • C. 

      Deformed thread type

    • D. 

      Interrupted thread type

  • 9. 
    (404) When a rigid type camloc receptacle needs to replaced you replace
    • A. 

      It with a rigid receptacle

    • B. 

      It with a floating receptacle

    • C. 

      It with a retaining receptacle

    • D. 

      The entire camloc fastener assembly

  • 10. 
    (404) What is the final step that completes a camloc fastener assembly installation?
    • A. 

      Install the receptacle.

    • B. 

      Install the stud retaining ring

    • C. 

      Check the grip length of the stud

    • D. 

      Insert the stud assembly into the grommet

  • 11. 
    (405) To properly install a new flush-type airloc turn-lock fastener, the size of the punched hole in the access panel should be
    • A. 

      1/16 inch larger than the stud

    • B. 

      1/16 inch smaller than the stud.

    • C. 

      Equal to the diameter of the stud head.

    • D. 

      Approximately the same size as the diameter of the stud shank.

  • 12. 
    (405) What part of an airloc assembly is never reused?
    • A. 

      Grommet.

    • B. 

      Cross-pin.

    • C. 

      Rigid receptacle

    • D. 

      Floating receptacle.

  • 13. 
    (406) When drilling holes for fasteners you can maintain proper hole alignment by
    • A. 

      Using a reamer to up size the hole

    • B. 

      Clamping all repair members in place

    • C. 

      Holding the drill at a right angle to the surface

    • D. 

      Pilot drilling holes through all mating surfaces

  • 14. 
    (406) How do you drill an interference fit hole for a fastener?
    • A. 

      Use only a reamer to finish the holeburrs.

    • B. 

      Use only a drill bit to drill the hole to size

    • C. 

      Pilot drill the hole and use a reamer to finish

    • D. 

      Pilot drill the hole and use a drill bit to upsize.

  • 15. 
    (407) When cold working a hole, which gage is used to verify the hole before and after it’s been cold-worked?
    • A. 

      Final.

    • B. 

      Starting.

    • C. 

      Verification.

    • D. 

      Combination.

  • 16. 
    (408) In determining the grip length of a hi-shear rivet, when it is installed in the hole the straight portion of the shank should
    • A. 

      Be flush with the top of the locking collar

    • B. 

      Extend no more than 1/16 inch through the material

    • C. 

      Be flush with the back edge of the material thickness

    • D. 

      Extend at least 1/16 inch beyond the top edge of the locking collar

  • 17. 
    (408) When installing hi-shear rivets how do you accomplish proper faying surface “sealant squeeze out”?
    • A. 

      Swaging the collar with an undersized swaging set

    • B. 

      Increasing the hammering force needed to swage the collar

    • C. 

      Installing temporary fasteners in every other hole before installation

    • D. 

      Lightly tapping the hi-shear rivet pin into the hole before swaging the collar

  • 18. 
    (407) Cold-working hole expansion is used to prevent
    • A. 

      Burrs.

    • B. 

      Cracks.

    • C. 

      Elongated holes

    • D. 

      Premature fatigue failure

  • 19. 
    (409) What is the maximum surface angle on which you can satisfactorily drive a stump lock-bolt collar?
    • A. 

      5° parallel with the axis of the hole.

    • B. 

      7° parallel with the axis of the hole.

    • C. 

      5° perpendicular with the axis of the hole.

    • D. 

      7° perpendicular with the axis of the hole.

  • 20. 
    (409) The last step after installing pull-type lock bolts is to                
    • A. 

      Inspect the formation of the collar

    • B. 

      Remove the pulling gun from the collar area

    • C. 

      Ensure the end of the pin is flush with the end of the collar

    • D. 

      Apply a corrosion preventative compound to the stem break off area

  • 21. 
    (410) What material composition hi-lok fastener is used when the temperature of a certain area of the aircraft exceeds 750°F?
    • A. 

      Inconel

    • B. 

      Titanium alloy

    • C. 

      Corrosion-resistant steel

    • D. 

      High-strength aluminum alloy

  • 22. 
    (411) What head marking symbols on the taper-lok pins indicate that it is an injection type?
    • A. 

      The letters IT in front of the TL symbol

    • B. 

      The letters IT before the first dash number.

    • C. 

      Indented slots stamped on the head of the fastener

    • D. 

      The numbers representing the type of sealant required.

  • 23. 
    (411) The symbol on the bottom of a taper-lok pin represents the
    • A. 

      Grip length

    • B. 

      Fastener diameter

    • C. 

      Material composition

    • D. 

      Threads per inch on the pin

  • 24. 
    (411) The second dash number stamped on the head of a taper-lok fastener pin represents the
    • A. 

      Grip length

    • B. 

      Fastener diameter

    • C. 

      Material composition

    • D. 

      Depth of the injector ports

  • 25. 
    (411) What other problem besides centering can you eliminate by using a washer-nut assembly on a taper-lok pin?
    • A. 

      Washer fumbling

    • B. 

      Over torquing the nut

    • C. 

      Corrosion of the mating surface

    • D. 

      Mismatch of the pin and material composition