2A651 Volume 3 Ure's

100 Questions | Total Attempts: 189

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2A651 Quizzes & Trivia

Volume 3 ure's


Questions and Answers
  • 1. 
    What is the composition of jp-8 fuel?
    • A. 

      Gasoline and kerosene

    • B. 

      Gasoline and diesel fuel

    • C. 

      Diesel fuel and kerosene

    • D. 

      Diesel fuel and aviation gasoline

  • 2. 
    At room temperature, how many times longer willit take water to settle out of jp-8 that out of gasoline?
    • A. 

      2

    • B. 

      3

    • C. 

      4

    • D. 

      5

  • 3. 
    Jet aircraft operating at moderately high altitudes increase the fuel system's susceptibility to an icing condition, further aggravated by the?
    • A. 

      Lower viscosity of jet fuels

    • B. 

      Higher viscosity of jet fuels

    • C. 

      Lower viscosity of free water

    • D. 

      Higher viscosity of free water

  • 4. 
    The main fuel control allows the jet engine to safety accelerate, reducing the possibility of?
    • A. 

      Flameout

    • B. 

      Turbine seizure

    • C. 

      Compressor shift

    • D. 

      Overtemperature

  • 5. 
    The purpose of a fuel/oil cooler in a fuel system is to?
    • A. 

      Heat the fuel and cool the oil

    • B. 

      Cool the fuel and cool the oil

    • C. 

      Heat the fuel and heat the oil

    • D. 

      Cool the fuel and heat the oil

  • 6. 
    During a visual inspection, how can you tell when a fuel filter is clogged?
    • A. 

      A green flag pops out of the filter

    • B. 

      Fuel pressure from the fuel pump is low

    • C. 

      A differential pressure indicator is actuated

    • D. 

      There is no way to tell without disassembling the filter

  • 7. 
    On a dual-spool, axial-flow engine, what controls thrust production of the engine?
    • A. 

      Regulating engine rpm

    • B. 

      Regulating compressor discharge pressure

    • C. 

      Controlling turbine exhaust pressure

    • D. 

      Controlling turbine inlet temperature

  • 8. 
    During jet engine deceleration, a hydromechanical fuel control schedules fuel flow as a function of?
    • A. 

      Rpm

    • B. 

      Inlet temperature

    • C. 

      Burner pressure

    • D. 

      Inlet pressure

  • 9. 
    What type of fuel control uses items such as thermocouples, relays, amplifiers, and solenoids to help control a jet engine?
    • A. 

      Pneumatic

    • B. 

      Fuel injection

    • C. 

      Hydromechanical

    • D. 

      Electrohydromechanical

  • 10. 
    Which term describes a jet engine fuel metering device that is really two fuel controls in one component?
    • A. 

      Unified

    • B. 

      Combined

    • C. 

      Binmechanical

    • D. 

      Electrosecondary

  • 11. 
    Calibration and/or adjustment screws that require setting during an engine trim procedure must be?
    • A. 

      Replaced

    • B. 

      Die marked

    • C. 

      Safety sealed and/or lockwired

    • D. 

      Applied a thread locking compound

  • 12. 
    When in primary mode, what controls the operation of the f100-pw-220 engine?
    • A. 

      Mec

    • B. 

      Pmg

    • C. 

      Tsfc

    • D. 

      Deec

  • 13. 
    On an f100-pw-220 engine, the deec is cooled by?
    • A. 

      Oil

    • B. 

      Fuel

    • C. 

      Ram air

    • D. 

      Hydraulic fluid

  • 14. 
    On an f100-pw-220 engine, how many modes is the mfc capable of operating in?
    • A. 

      1

    • B. 

      2

    • C. 

      3

    • D. 

      4

  • 15. 
    Which f100-pw-220 engine fuel system component controls pressurization of the core engine fuel system?
    • A. 

      Fuel nozzle

    • B. 

      P&d vale

    • C. 

      N2 sensor

    • D. 

      Tt 2.5 sensor

  • 16. 
    Which stage of compressor air drives the augmenter fuel pump on an f100-pw-200 engine?
    • A. 

      7th

    • B. 

      10th

    • C. 

      13th

    • D. 

      14th

  • 17. 
    Core engine fuel flow sequence on an f100-pw-220 engine starts at the main fuel pump and then goes through the?
    • A. 

      Afp, afc, fule/oil cooler, p&d, and fuel nozzles

    • B. 

      Mfc, fuel/oil cooler, p&d, and fuel nozzles

    • C. 

      Afc, afp, fuel/oil cooler, p&d, and fuel nozzles

    • D. 

      Fuel/oil cooler, p&d, mfc, and fuel nozzles

  • 18. 
    On the t56 engine, how many and what type of fuel pumps are contained in the fuel pump and filter assembly?
    • A. 

      3 gear; 1 boost

    • B. 

      2 gear; 2 boost

    • C. 

      2 gear; 1 boost

    • D. 

      1 gear; 2 boost

  • 19. 
    On a t56 engine, what controls the rotary movement of the fuel control metering valve?
    • A. 

      Temperature

    • B. 

      Engine speed

    • C. 

      Throttle position

    • D. 

      Compressor inlet pressure

  • 20. 
    Which t56 engine component receives 120 percent of the engine fuel requirement?
    • A. 

      Td valve

    • B. 

      Fuel control

    • C. 

      Td control

    • D. 

      Fuel nozzle

  • 21. 
    In addition to the visual inspection, what other type of inspection does the t56 engine fuel nozzle require?
    • A. 

      Nondestructive

    • B. 

      Spray pattern

    • C. 

      Pre-torque

    • D. 

      Ultrasonic

  • 22. 
    In what position must the td valve switches be placed in order to make the t56 engine fuel trimming system inoperative?
    • A. 

      Off

    • B. 

      Null

    • C. 

      Auto

    • D. 

      Locked

  • 23. 
    On the t56 engine, what compares the desired throttle setting from the coordinator with the actual TIT signal from the thermocouples?
    • A. 

      Td valve

    • B. 

      Speed-sensitive control

    • C. 

      Td potentiometers

    • D. 

      Td amplifiers

  • 24. 
    Which t56 engine component sends the fuel to the fuel manifold?
    • A. 

      Td valve

    • B. 

      Main fuel pump

    • C. 

      Td amplifier

    • D. 

      Fuel control

  • 25. 
    On the t56 engine, the manifold pressure switch opens to de-energize the fuel enrichment relay when fuel pressure, in psi, in the manifold reaches?
    • A. 

      30 psi

    • B. 

      40 psi

    • C. 

      50 psi

    • D. 

      60 psi

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