CDC 2A651 Volume 3 Engine Systems (Q 35-50

16 Questions | Total Attempts: 202

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Questions and Answers
  • 1. 
    Approximately how many GPM does the AE2100D3 PUAD lube and scavenge pump provide at engine PTO?
    • A. 

      3.

    • B. 

      5.

    • C. 

      7.

    • D. 

      9.

  • 2. 
    What AE2100D3 component drives the PGB lube and scavenge pump?
    • A. 

      Alternator stator.

    • B. 

      PGB.

    • C. 

      PUAD.

    • D. 

      GMAD.

  • 3. 
    Which type of oil pump is used on the T56 engine?
    • A. 

      Gear.

    • B. 

      Float.

    • C. 

      Gerotor.

    • D. 

      Centrifugal

  • 4. 
    The amount of ram air passing through the oil cooler core is regulated by the
    • A. 

      Thermostat.

    • B. 

      Flap actuator.

    • C. 

      Size of the core.

    • D. 

      Regulating valve.

  • 5. 
    Bleed air flowing through which component increases airflow through the cooler?
    • A. 

      Flap actuator.

    • B. 

      Oil cooler flap.

    • C. 

      Augmentation valve.

    • D. 

      Augmentation ejector.

  • 6. 
    The valve that allows fluid to flow in only one direction is the
    • A. 

      Check.

    • B. 

      Relief.

    • C. 

      Bypass.

    • D. 

      Pressurizing.

  • 7. 
    In the power unit oil  system ,the dual-port oil jet mounted on the front side of the compressor air inlet housing is used to lubricate the
    • A. 

      Mid and center sleeve bearings.

    • B. 

      Torquemeter and compressor front bearings.

    • C. 

      Front and rear sides of the compressor rear bearing.

    • D. 

      Front and rear sides of the compressor front bearing.

  • 8. 
    The power section and RGB oil systems are joined together at the
    • A. 

      Fuel heater and strainer.

    • B. 

      External scavenge oil filter.

    • C. 

      External scavenge oil pump.

    • D. 

      Scavenge element of the main pump.

  • 9. 
    Which RGB component prevents oil in the oil tank from draining into the RGB rear case?
    • A. 

      Shutoff valve.

    • B. 

      Oil pump and filter.

    • C. 

      Oil pump check valve.

    • D. 

      Oil pump bypass valve

  • 10. 
    How many scavenge oil pumps are located in the RGB?
    • A. 

      1.

    • B. 

      2.

    • C. 

      3.

    • D. 

      4.

  • 11. 
    The journeyman must be aware of which hazardous propert of modern jet engine oil?
    • A. 

      Toxicity.

    • B. 

      Viscosity.

    • C. 

      Alkalinity.

    • D. 

      Corrosiveness.

  • 12. 
    The primary benefit of identifying an impending failure through the OAP is
    • A. 

      Improved safety.

    • B. 

      Increased component life.

    • C. 

      Reduced maintenance cost.

    • D. 

      Increased equipment availability.

  • 13. 
    Who is responsible for ensuring that the OAP operates properly?
    • A. 

      Project monitor.

    • B. 

      Logistics commander.

    • C. 

      Propulsion flight chief.

    • D. 

      Laboratory supervisor.

  • 14. 
    What are microscopic metallic particles in the oil system called?
    • A. 

      Wear metals.

    • B. 

      Friction metals.

    • C. 

      Precious metals.

    • D. 

      Transformation metals.

  • 15. 
    Oil sampling intervals should not vary by more than
    • A. 

      5 %

    • B. 

      10%

    • C. 

      15%

    • D. 

      20%

  • 16. 
    The SEM/EDX analysis process differs from conventional oil analysis in which major aspect?
    • A. 

      SEM/EDX samples must be sent off-site for analysis.

    • B. 

      SEM/EDX particles must be oil free for analysis to take place

    • C. 

      SEM/EDX provides results concerning equipment and components condition.

    • D. 

      SEM/EDX samples can only be obtained in an intermediate maintenance shop.

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