CDC 2a354n Volume 2. Foundations Of Aircraft Maintenance

58 Questions | Total Attempts: 57

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Aircraft Quizzes & Trivia

When travelling, it’s easy to head to the airport and hop on a plane without paying any attention to all of the work that goes into running an aircraft and maintaining it for further and continued use. What protocols and tasks must be undertaken in order to keep things in the air? Let’s have a look.


Questions and Answers
  • 1. 
    What protects a coaxial cable from moisture and abrasion?
    • A. 

      Center conductor

    • B. 

      Inner conductor

    • C. 

      Metallic braid over the insulation

    • D. 

      Outer jacket

  • 2. 
    What TO has detailed explanation of aircraft wiring, cables, and wiring repair procedures?
    • A. 

      TO 1-1A-2

    • B. 

      TO 1-1A-8

    • C. 

      TO 1-1A-14

    • D. 

      TO 1-1A-22

  • 3. 
    What sign of chafing will wire insulation/shielding show?
    • A. 

      Broken center conductor

    • B. 

      Dented dielectric material

    • C. 

      Dull, rough appearance

    • D. 

      Shiny, smooth appearance

  • 4. 
    Which component feels the input impedance?
    • A. 

      Antenna

    • B. 

      Control panel

    • C. 

      Receiver

    • D. 

      Transmitter

  • 5. 
    Which type of transmission line has one of its two conductors that is a grounded braided wire tube surrounding the center conductor?
    • A. 

      Coaxial line

    • B. 

      Shielded pair

    • C. 

      Spaced two-wire line

    • D. 

      Twisted pair

  • 6. 
    Which type of transmission line has a grounded copper braid shield?
    • A. 

      Coaxial

    • B. 

      Shielded two-wire

    • C. 

      Spaced two-wire line

    • D. 

      Twisted pair

  • 7. 
    Which loss occurs when the electromagnetic field about a conductor cuts through a nearby metallic object?
    • A. 

      Copper loss

    • B. 

      Dielectric loss

    • C. 

      Radiation loss

    • D. 

      Induction loss

  • 8. 
    Flexible waveguides are covered with rubber to
    • A. 

      Protect them from electrical static discharge

    • B. 

      Make them both airtight and watertight

    • C. 

      Prevent RF reflections

    • D. 

      Prevent chafing

  • 9. 
    The feedhorn eliminates reflections by watching the impedance of the waveguide to the impedance of 
    • A. 

      The amplifier

    • B. 

      The oscillator

    • C. 

      Internal space

    • D. 

      Free space

  • 10. 
    What is the initial pulse the time domain reflectometer (TDR) sends into the cable called?
    • A. 

      Amplifier pulse

    • B. 

      Incident pulse

    • C. 

      Receiver pulse

    • D. 

      Reflected pulse

  • 11. 
    Any change in the impedance of the cable will send a signal back to the TDR as 
    • A. 

      An amplifier pulse

    • B. 

      An incident pulse

    • C. 

      A receiver pulse

    • D. 

      A reflected pulse

  • 12. 
    Which part of the electrical connector attaches to a bulkhead or extends from a LRU case?
    • A. 

      Backshell

    • B. 

      Bulkhead

    • C. 

      Plug

    • D. 

      Receptacle

  • 13. 
    Which is the removable part of the electrical connector and includes the coupling device?
    • A. 

      Backshell

    • B. 

      Bulkhead

    • C. 

      Plug

    • D. 

      Receptacle

  • 14. 
    Which type of connector is used primarily with coax, twinax, and triax cables?
    • A. 

      Electrical

    • B. 

      Miniature

    • C. 

      Radio Frequency

    • D. 

      Typical

  • 15. 
    RF connectors are the weak link in the RF transmission and reception path because
    • A. 

      They are easily damaged

    • B. 

      There is an impedance mismatch

    • C. 

      Resistance is higher than current flow

    • D. 

      Resistance is lower than current flow

  • 16. 
    The connection bond on a solderless connector is 
    • A. 

      Chemical

    • B. 

      Fixed

    • C. 

      Mechanical

    • D. 

      Terminal

  • 17. 
    Which type connector is placed over a metal post and then secured with a nut forming a reliable electrical connection?
    • A. 

      Radio Frequency

    • B. 

      Solder

    • C. 

      Splice

    • D. 

      Terminal lug

  • 18. 
    Connecting and disconnecting more than one wire at a time is the advantage of the 
    • A. 

      Waveguide

    • B. 

      Connector plug

    • C. 

      Terminal lug

    • D. 

      Splice

  • 19. 
    The most common mistake when using the wire repair kit is selecting the wrong tool and 
    • A. 

      Using the wrong wire

    • B. 

      Not checking the calibration

    • C. 

      Selecting the wrong connector pin

    • D. 

      Using the wrong settings

  • 20. 
    Which knob on the pin crimper tool allows you to adjust how tight the pin will be squeezed during the crimping process?
    • A. 

      Crimp selector knob

    • B. 

      Indenter selector knob

    • C. 

      Pin selector knob

    • D. 

      Pressure selector knob

  • 21. 
    What color bands are around rear-release connector plugs?
    • A. 

      Blue

    • B. 

      Green

    • C. 

      Red

    • D. 

      Yellow

  • 22. 
    When a connector plug must be moisture sealed, use heat shrinkable tubing or 
    • A. 

      Electrical tape

    • B. 

      Gaffers tape

    • C. 

      Silicone tape

    • D. 

      Fiberglass tape

  • 23. 
    A synchro motor converts
    • A. 

      A mechanical position into an equivalent electrical position signal

    • B. 

      A mechanical position into a higher electrical position signal

    • C. 

      An electrical position signal into an equivalent mechanical position

    • D. 

      An electrical position signal into a higher mechanical position

  • 24. 
    Why is the synchro motor inertia damper necessary?
    • A. 

      Reduces motor oscillations

    • B. 

      Prevents the motor from overheating

    • C. 

      Prevents the rotor shaft from breaking

    • D. 

      Connects the rotor windings to the external circuit

  • 25. 
    Synchro motors and generators have stators that are set 
    • A. 

      30 degrees apart

    • B. 

      60 degrees apart

    • C. 

      90 degrees apart

    • D. 

      120 degrees apart

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