2a676 Vol 1 General Mx And Troubleshooting

54 Questions | Total Attempts: 73

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2a676 Vol 1 General Mx And Troubleshooting - Quiz

All the aircrafts be in in or out of the air force require electricity to function at optimal condition. An aircraft electrical and environmental systems journey man is expected to repair and maintain electrical components of an aircraft. Take the Vol 1 General Mx and Troubleshooting quiz below to test your knowledge. All the best!


Questions and Answers
  • 1. 
    (001) Usually, the most difficult step in trouble shooting is?
    • A. 

      Technical data analysis

    • B. 

      Operational checkout

    • C. 

      System analysis

    • D. 

      Fault isolation

  • 2. 
    (001) Load lights can be effective for locating problems with
    • A. 

      High resistance

    • B. 

      No resistance

    • C. 

      High voltage

    • D. 

      High current

  • 3. 
    (001) When you are troubleshootin an aircfraft problem using all the troubleshooting procedures available and you still cannot locate the defective LRU, you should try
    • A. 

      A slaving procedure

    • B. 

      An isolating procedure

    • C. 

      To analyze the problem to a deeper level

    • D. 

      Researching the problem to a deeper level

  • 4. 
    (002) For a braided shield to protect an electrical circuit, what cover range will satisfy most applications?
    • A. 

      55% to 65%

    • B. 

      65% to 75%

    • C. 

      75% to 85%

    • D. 

      85% to 95%

  • 5. 
    (002) What AF T.O. outlines repair procedures for aircraft electric and electronic wiring?
    • A. 

      0-15-1

    • B. 

      1-1a-8

    • C. 

      1-1a-14

    • D. 

      01-1a-35

  • 6. 
    (002) When soldering a contact to a twisted shield wire, which lead will be visible in the foward inspection window?
    • A. 

      Ground

    • B. 

      Signal

    • C. 

      Test

    • D. 

      Bus

  • 7. 
    (002) When using shrinkable insulation sleeves to cover a soldered contact connection, which type of heatin toolis acceptable for use around fueled aircraft?
    • A. 

      Oil-free type

    • B. 

      Pure oxygen type

    • C. 

      Electric motor type

    • D. 

      Compressed air/nitrogen type

  • 8. 
    (002) During the repair of a shieled wire harness, what is the percentage of copper foil tape pverlap around the damaged area of the shield?
    • A. 

      30

    • B. 

      50

    • C. 

      70

    • D. 

      90

  • 9. 
    (003) Which component generates high level of electrostatic voltage because the voltage is not distibuted over the entire surface of the substance?
    • A. 

      Semiconductors

    • B. 

      Conductors

    • C. 

      Insulators

    • D. 

      Resistors

  • 10. 
    (003) Before you connect any connectors to equipment containing ESDS devices, you must first
    • A. 

      Ensure you are grounded

    • B. 

      Align connector pins

    • C. 

      Install conductive dust cap

    • D. 

      Equalize electrostatic potentials

  • 11. 
    (004) What charecteristics is not a physica; characteristic usedfor identification of coatings on printed circuit board?
    • A. 

      Hardness

    • B. 

      Solubility

    • C. 

      Thickness

    • D. 

      Permeability

  • 12. 
    (004) To prevent overheating of the component and circuit board when you are desoldering the joints on a multilead component you should
    • A. 

      Remove the soldering iron with in 6 seconds

    • B. 

      Desloder leads ina clockwise direction

    • C. 

      Desolder using a random pattern

    • D. 

      Use newly tinned tip

  • 13. 
    (004) When solderin heat sensetive parts, you should always use
    • A. 

      A heat shunt

    • B. 

      Mild solvents

    • C. 

      Thermal parting

    • D. 

      Unclinched leads

  • 14. 
    (004) To visually inspect a solder connection, you should clean and magnify the connection up to
    • A. 

      5x

    • B. 

      7x

    • C. 

      12x

    • D. 

      25x

  • 15. 
    (005) The CSD is regulated to
    • A. 

      2,400RPM

    • B. 

      4,200 RPM

    • C. 

      24,000 RPM

    • D. 

      42,000 RPM

  • 16. 
    (005) BOth control and protection of the AC power system is provided by the
    • A. 

      BTR

    • B. 

      GR

    • C. 

      ACXTR

    • D. 

      GCU

  • 17. 
    (005) Tying the left and the right AC buses us accomplished by energyzing the
    • A. 

      IDG ACG

    • B. 

      GCU

    • C. 

      ACXTR

    • D. 

      BTR

  • 18. 
    (005) The switch in the ESCP that commands the ACXTR is marked
    • A. 

      AC X TIE

    • B. 

      DC X TIE

    • C. 

      EXT PWR

    • D. 

      APU PWR

  • 19. 
    (005) All four IDG ACGs operate as seperate systems while in
    • A. 

      Parallel mode

    • B. 

      Isolated mode

    • C. 

      Split parallel

    • D. 

      Split isolated mode

  • 20. 
    (005) The system(s) that utilize a BIT system for troubleshooting is/are
    • A. 

      AC only

    • B. 

      DC only

    • C. 

      AC,DC, and External

    • D. 

      AC and DC only

  • 21. 
    (005) In the AC power sytem, the component that provides the BIT circuitry utilized in troubleshooting is the
    • A. 

      GR

    • B. 

      BCR

    • C. 

      APU

    • D. 

      BPCU

  • 22. 
    (005) During normal operation, the BIT sytem monitors external and internal performance information
    • A. 

      Only on demand

    • B. 

      Intermittently

    • C. 

      Continously

    • D. 

      Never

  • 23. 
    (005) BIT fault info is stored in
    • A. 

      Volatile memory

    • B. 

      Nonvolatile memory

    • C. 

      Read-only memory (ROM)

    • D. 

      Random access memory (RAM)

  • 24. 
    (005) Automatically initiated BIT checks occur on
    • A. 

      Inital AC system power up

    • B. 

      Initial AC system power down

    • C. 

      First engine shutdown

    • D. 

      Last engine shutdown

  • 25. 
    (006) The TRPT output is rated at
    • A. 

      200amp,26VDC

    • B. 

      200amp,28VDC

    • C. 

      160amp,26VDC

    • D. 

      200amp,28VDC

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