2A656 Aircraft Electrical And Environmental Systems Journeyman Volume 2

100 Questions | Total Attempts: 42

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2A656 Aircraft Electrical And Environmental Systems Journeyman Volume 2

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Questions and Answers
  • 1. 
    Screwdrivers are sized by the length of the 
    • A. 

      Blade

    • B. 

      Shank

    • C. 

      Handle

    • D. 

      Ferrule

  • 2. 
    A properly ground tip on a standard screwdriver
    • A. 

      Fits loosely in the screw slot

    • B. 

      Is wider than the slot

    • C. 

      Is rounded and flat

    • D. 

      Is square and flat

  • 3. 
    One of the most important things to remember when using a hammer or any other hand tool is to use a
    • A. 

      Substitute tool if it will save time and movement

    • B. 

      Tool of the right composition or material

    • C. 

      Tool only for its correct purpose

    • D. 

      Tool one size larger than needed

  • 4. 
    What kind of pliers are mainly for holding or bending flat or round stock?
    • A. 

      Vise grips

    • B. 

      Long-nose

    • C. 

      Multiple slip-joint

    • D. 

      Combination slip-joint

  • 5. 
    One advantage of box-end wrenches is that they
    • A. 

      Are the fastest to use

    • B. 

      Can be hammered on safely

    • C. 

      Are not likely to slip off a nut

    • D. 

      Are easy to use on recessed bolts

  • 6. 
    Thickness gauges of various sizes are normally used to measure the
    • A. 

      Debt of a hole

    • B. 

      Thread size of a bolt

    • C. 

      Outside diameter of a tube

    • D. 

      Clearance between two objects

  • 7. 
    Before storing a torque wrench you have used, you should
    • A. 

      Lubricate it with a light oil

    • B. 

      Set it at its lowest setting

    • C. 

      Check it for accuracy

    • D. 

      Set it at zero setting

  • 8. 
    Tubing used in aircraft oxygen, fuel, lubrication, fire extinguishing, instruments, hydraulic and vent lines is
    • A. 

      Stainless steel and teflon alloy

    • B. 

      Stainless steel and copper tubing

    • C. 

      Aluminum alloy and copper tubing

    • D. 

      Aluminum alloy and stainless steel

  • 9. 
    You can identify a fitting by its pipe treads by its
    • A. 

      Color

    • B. 

      Taper

    • C. 

      Lenght

    • D. 

      Inside diameter

  • 10. 
    When torquing a bolt assembly, what is the force applied to overcome friction?
    • A. 

      Torsion

    • B. 

      Tension

    • C. 

      Tensile

    • D. 

      Shear

  • 11. 
    When installing a cotter pin, ensure the prong that bends over the bolt shank does not exceed the bolt nut
    • A. 

      Grip

    • B. 

      Width

    • C. 

      Length

    • D. 

      Diameter

  • 12. 
    A good rule to follow in using safety wire is
    • A. 

      Never use the single-wire method

    • B. 

      Loop its so that it opposes the loosening end of the part

    • C. 

      The diameter of the wire should fill one-half the hole

    • D. 

      Use safety wire electrical connectors only in cockpit areas

  • 13. 
    Wire insulation may consist of several layers of nonconducting material that provides 
    • A. 

      Thermal protection and fluid resistance

    • B. 

      A method of identification

    • C. 

      Protection from freezing

    • D. 

      Strength and flexibility

  • 14. 
    Which technical order (TO) provides instructions for the Brady Wire Marking System?
    • A. 

      00-20-1

    • B. 

      00-20-2

    • C. 

      1-1A-8

    • D. 

      1-1A-14

  • 15. 
    Wires and wire bundles should be supported by clamps or grommets at intervals of no more than
    • A. 

      15 inches

    • B. 

      20 inches

    • C. 

      24 inches

    • D. 

      26 inches

  • 16. 
    All wire groups or bundles must be tied when supports are more than
    • A. 

      6 inches

    • B. 

      8 inches

    • C. 

      10 inches

    • D. 

      12 inches

  • 17. 
    Avoid using self-clinching tie straps where temperatures exceed
    • A. 

      185 Degrees

    • B. 

      165 Degrees

    • C. 

      150 Degrees

    • D. 

      100 Degrees

  • 18. 
    How may nicked or broken wire stands are allowed on 16-gauge aluminum wire?
    • A. 

      One

    • B. 

      Two

    • C. 

      Three

    • D. 

      None

  • 19. 
    The indent-type crimping tool should be used only on
    • A. 

      Preinsulated splices

    • B. 

      Preinsulated terminals

    • C. 

      Noninsulated terminals

    • D. 

      Noninsulated terminal boards

  • 20. 
    What do you use as juntion points for circuits that are frequently disconnected?
    • A. 

      Connector plugs

    • B. 

      Terminal boards

    • C. 

      Shielded wires

    • D. 

      Splices

  • 21. 
    What ensures a connector plug and receptacle are not mismated?
    • A. 

      Bulkhead receptacle

    • B. 

      Threaded coupling ring

    • C. 

      Pin and socket connection

    • D. 

      Key-and-key way arrangment

  • 22. 
    When heat is applied to thermofit material, which is used in compact wire bundles, it will shrink by at least
    • A. 

      One and half times its original diameter

    • B. 

      One-fourth its original diameter

    • C. 

      One-half its original diameter

    • D. 

      One time its original diameter

  • 23. 
    The electrical magnetic pulse (EMP)-hardened cable provides a barrier to
    • A. 

      Electrical grounding

    • B. 

      Electrical continuity

    • C. 

      Electrical current flow

    • D. 

      Electrostatic interference

  • 24. 
    After bonding or grounding jumper is installed, it should read no more than
    • A. 

      0.02 ohms

    • B. 

      0.01 ohms

    • C. 

      0.2 ohms

    • D. 

      0.1 ohms

  • 25. 
    Which type of solder is preferred for printed circuit boards?
    • A. 

      40/60

    • B. 

      60/40

    • C. 

      63/37

    • D. 

      64/36

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