2A651 Ure (All Volumes Mix)

100 Questions | Total Attempts: 50

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Volume Quizzes & Trivia

Questions and Answers
  • 1. 
    • A. 

      Silicone

    • B. 

      Carbon

    • C. 

      Synthetic

    • D. 

      Labyrinth

  • 2. 
    • A. 

      Operations Support Center

    • B. 

      Logistics Support Squadron

    • C. 

      Operations Support Squadron

    • D. 

      Maintenance Operations Center

  • 3. 
    • A. 

      Dry sump

    • B. 

      Wet sump

    • C. 

      Cold tank

    • D. 

      Hot tank

  • 4. 
    • A. 

      Turbine

    • B. 

      Diffuser

    • C. 

      Compressor

    • D. 

      Combustion

  • 5. 
    On an F100-PW–220 engine, what component permits oil to bypass the oil filter during cold weather starts?
    • A. 

      Oil relief valve

    • B. 

      Filter poppet valve

    • C. 

      Oil pressure transmitter tap

    • D. 

      Filter assembly bypass valve

  • 6. 
    • A. 

      24

    • B. 

      36

    • C. 

      48

    • D. 

      60

  • 7. 
    • A. 

      Wear metals

    • B. 

      Friction metals

    • C. 

      Precious metals

    • D. 

      Transformation metals

  • 8. 
    • A. 

      Using only the energy expended through the exhaust nozzle to propel the aircraft forward

    • B. 

      Using the same working fluid for propulsive force as that used within the engine

    • C. 

      Accelerating a large mass of air through a small velocity change

    • D. 

      Moving a small quantity of air through a large velocity change

  • 9. 
    Under what condition would you not receive an OAP laboratory sample report?
    • A. 

      The sample is the first taken after an oil change

    • B. 

      The aircraft is on TDY

    • C. 

      It was a special oil sample

    • D. 

      The results are normal

  • 10. 
    Air Force occupational safety and health (AFOSH) standards are located within Air Force publication series
    • A. 

      91

    • B. 

      66

    • C. 

      127

    • D. 

      161

  • 11. 
    • A. 

      Inverter

    • B. 

      Capacitor

    • C. 

      Generator

    • D. 

      Transformer

  • 12. 
    On an average, what percent of all the energy produced by the fuel is required to maintain the engine operating cycle?
    • A. 

      50

    • B. 

      60

    • C. 

      70

    • D. 

      80

  • 13. 
    • A. 

      One

    • B. 

      Two

    • C. 

      Three

    • D. 

      Five

  • 14. 
    Vane-type fuel pumps used in jet engines are similar to
    • A. 

      Sliding-vane air compressors

    • B. 

      Piston pump air compressors

    • C. 

      Roots air compressors

    • D. 

      Turbo-superchargers

  • 15. 
    • A. 

      Full Authority Digital Electronic Control (FADEC)

    • B. 

      Gearbox Mounted Accessory Drive (GMAD)

    • C. 

      Power Unit Accessor Drive (PUAD)

    • D. 

      Nacelle Interface Unit (NIU)

  • 16. 
    • A. 

      Safety

    • B. 

      Hospital

    • C. 

      Supervisor

    • D. 

      Environmental

  • 17. 
    • A. 

      Can

    • B. 

      Annular

    • C. 

      Can-annular

    • D. 

      Restricted flow

  • 18. 
    Fuel that accumulates after a failed start is
    • A. 

      Returned to the fuel control by tubes

    • B. 

      Drained overboard by a drain system

    • C. 

      Burned on the next start attempt

    • D. 

      Allowed to evaporate

  • 19. 
    Discharge air used for aircraft engine anti-icing to heat-critical areas is taken from which engine area?
    • A. 

      Compressor

    • B. 

      Combustion

    • C. 

      Augmentor

    • D. 

      Turbine

  • 20. 
    • A. 

      Priority Monitor Report (D18)

    • B. 

      Daily Document Register (D04)

    • C. 

      Due-out Validation Listing (M30)

    • D. 

      Repair Cycle Asset Management Listing (D23)

  • 21. 
    • A. 

      Transient vibration

    • B. 

      Partial loss of lubrication

    • C. 

      Complete loss of lubrication

    • D. 

      Stall condition over temperature

  • 22. 
    • A. 

      Ohm’s law

    • B. 

      Bernoulli’s law

    • C. 

      Newton’s first law

    • D. 

      Newton’s third law

  • 23. 
    The purpose of the exhaust duct is to
    • A. 

      Swirl exhaust gas-flow

    • B. 

      Equalize exhaust gas-flow

    • C. 

      Straighten exhaust gas-flow

    • D. 

      Modulate exhaust gas-flow

  • 24. 
    An F110-GE–129 engine contains how many stages of VSV?
    • A. 

      2

    • B. 

      3

    • C. 

      5

    • D. 

      7

  • 25. 
    The “fir tree” method of attaching turbine blades (buckets) to the turbine rotor disc is preferred because
    • A. 

      Of the temperature differential between the turbine rotor disc and the blades

    • B. 

      It aids in preventing horizontal movement of the blades

    • C. 

      There is more blade tip shake during engine operation

    • D. 

      It aids in preventing axial movement of the bucket

  • 26. 
    • A. 

      2

    • B. 

      3

    • C. 

      4

    • D. 

      6

  • 27. 
    • A. 

      2

    • B. 

      3

    • C. 

      4

    • D. 

      5

  • 28. 
    The F100 engine augmentor’s primary nozzle actuator is driven by cables from the
    • A. 

      T5 amplifier

    • B. 

      Unified control

    • C. 

      Afterburner fuel control

    • D. 

      Convergent exhaust nozzle control

  • 29. 
    Serviceable items, when received from supply and ready to use, each have an attached Department of Defense (DD) Form
    • A. 

      1574

    • B. 

      1575

    • C. 

      1577-2

    • D. 

      1577-3

  • 30. 
    Compressor section failure from a chain reaction due to blade-to-blade and blade-to-vane interference is known as
    • A. 

      Circumferential force

    • B. 

      Centrifugal force

    • C. 

      Centripetal force

    • D. 

      Centrifuge force

  • 31. 
    On the 54H60–117 propeller, which component delivers the actual propeller blade angle from the blade to the control assembly?
    • A. 

      Microadjusting ring

    • B. 

      Beta feedback shaft

    • C. 

      Blade segment gear

    • D. 

      Blade bushing

  • 32. 
    The reduction gearbox on an F100–PW–220 engine reduces speed between the main fuel gear pump and the engine-driven main gearbox by
    • A. 

      45%

    • B. 

      33%

    • C. 

      46%

    • D. 

      52%

  • 33. 
    On the 54H60–117 propeller, which dome assembly part allows the rotating cam to turn while the stationary cam remains in a fixed position?
    • A. 

      Roller shaft

    • B. 

      Track slopes

    • C. 

      Ball bearings

    • D. 

      Roller bearings

  • 34. 
    • A. 

      Shelf-life

    • B. 

      Bench stock

    • C. 

      Hazardous materials

    • D. 

      Equipment authorization inventory data

  • 35. 
    On the 54H60–117 propeller, which pump(s) is/are used during propeller static operation?
    • A. 

      Main pressure

    • B. 

      Main scavenge

    • C. 

      Standby pressure and main scavenge

    • D. 

      Auxiliary pressure and auxiliary scavenge

  • 36. 
    On the T56 turboprop engine, there are mounting pads on the aft side of the accessory drive for the fuel control, fuel pump, and
    • A. 

      Speed-sensitive valve

    • B. 

      Engine main oil pump

    • C. 

      Speed-sensitive control

    • D. 

      External scavenge oil pump

  • 37. 
    On the 54H60–117 propeller, which valve connects the main, standby, and auxiliary pressure pumps’ output to the increase pitch lines during negative torque conditions?
    • A. 

      High pressure relief

    • B. 

      Feather actuating

    • C. 

      Feather

    • D. 

      Pilot

  • 38. 
    A cold compressor stall that occurs at low revolutions per minute (rpm) and is accompanied by a slight over temperature is called
    • A. 

      An incipient

    • B. 

      A thermal

    • C. 

      A partial

    • D. 

      A mild

  • 39. 
    • A. 

      00-5-2

    • B. 

      00-5-1

    • C. 

      00-20-1

    • D. 

      00-20-2

  • 40. 
    On the 54H60–117 propeller, when the backup valve is opened, the hydraulic pressure routed to the governor pilot valve is used for which operation?
    • A. 

      Pitchlock

    • B. 

      Standby

    • C. 

      Reverse

    • D. 

      Airstart

  • 41. 
    Torque is transferred from the power unit to the safety coupling on the reduction gearbox (RGB) by the
    • A. 

      Torque shaft

    • B. 

      Reference shaft

    • C. 

      Torquemeter housing

    • D. 

      Compressor extension shaft

  • 42. 
    On the 54H60–117 propeller, which type of valve opens to allow the output of the standby pump to combine with the output of the main pump?
    • A. 

      Check

    • B. 

      Bypass

    • C. 

      Low pressure relief

    • D. 

      High pressure relief

  • 43. 
    • A. 

      Safety

    • B. 

      Urgent action

    • C. 

      Routine action

    • D. 

      Immediate action

  • 44. 
    On the 54H60–117 propeller, what forces the stop levers on the low pitch stop to move outward?
    • A. 

      Hydraulic pressure

    • B. 

      Movable wedge

    • C. 

      Dome piston

    • D. 

      Servo valve

  • 45. 
    The purpose of the turbine section is to convert
    • A. 

      Energy into torque

    • B. 

      Kinetic energy into airflow

    • C. 

      Airflow into potential energy

    • D. 

      Torque into mechanical energy

  • 46. 
    During what inspection phase are operational checks made according to the technical order (TO)?
    • A. 

      Fix

    • B. 

      Look

    • C. 

      Pre-inspection

    • D. 

      Post-inspection

  • 47. 
    Constant speed can only occur when the throttle is positioned from
    • A. 

      RVS to FLT IDLE

    • B. 

      RVS to GND IDLE

    • C. 

      GND IDLE to FLT IDLE

    • D. 

      FLT IDLE to TAKE OFF

  • 48. 
    The primary goal of the engine trending and diagnostics (ET&D) program is to prevent or limit damage to turbine engines by
    • A. 

      Reviewing past engine accident investigation reports

    • B. 

      Tracking serially controlled components and modules

    • C. 

      Early detection of performance degradation and/or failures

    • D. 

      Documenting engine overspeed and overtemperature conditions

  • 49. 
    In the beta range of the 54H60–117 propeller, which cam increases the speeder spring tension?
    • A. 

      Beta set

    • B. 

      Speed set

    • C. 

      Backup valve

    • D. 

      Beta follow-up

  • 50. 
    The T700 engine has a modular concept that allows for the replacement of entire
    • A. 

      Motors

    • B. 

      Systems

    • C. 

      Subsystems

    • D. 

      Components

  • 51. 
    During an underspeed condition on the 54H60–117 propeller, what moves the pilot valve?
    • A. 

      Decreased hydraulic pressure

    • B. 

      Increased hydraulic pressure

    • C. 

      Speeder spring

    • D. 

      Flyweights

  • 52. 
    Depot level support includes depot field teams (DFT) and
    • A. 

      Contract field teams (CFT)

    • B. 

      Base jet engine run crews (BJERC)

    • C. 

      Oil analysis teams (OAT)

    • D. 

      Slide engineer team (SET)

  • 53. 
    During the 54H60–117 propeller feathering operation, which valve blocks off the standby pump output and causes hydraulic pressure to increase?
    • A. 

      Feather

    • B. 

      Standby check

    • C. 

      Feather solenoid

    • D. 

      Feather actuating

  • 54. 
    • A. 

      Test cell run procedures

    • B. 

      Unit serial number listings

    • C. 

      Periodic inspection checklists

    • D. 

      Monthly requirements listings

  • 55. 
    Power to drive the accessory gearbox (AGB) on the F108 engine is transmitted from the
    • A. 

      Fan major module

    • B. 

      Accessory major module

    • C. 

      Core engine major module

    • D. 

      Low-pressure turbine (LPT) major module

  • 56. 
    On the 54H60–117 propeller, what is the minimum psi required to release the feather latches and allow the piston to move forward?
    • A. 

      200

    • B. 

      400

    • C. 

      600

    • D. 

      800

  • 57. 
    • A. 

      Prevent unscheduled removal of engines

    • B. 

      Accelerate the flying rate of all the unit’s installed engines

    • C. 

      Determine distress modes of an engine and its subsystems in the field

    • D. 

      Identify engines requiring time compliance technical order (TCTO) maintenance

  • 58. 
    • A. 

      Propeller governor control

    • B. 

      Synchrophaser disarming

    • C. 

      Prop resynchrophase

    • D. 

      Synchrophase master

  • 59. 
    • A. 

      20

    • B. 

      50

    • C. 

      80

    • D. 

      90

  • 60. 
    The master synchrophaser board located in the synchrophaser unit contains a master channel and a slave channel used by propellers
    • A. 

      No. 1 and No. 2

    • B. 

      No. 2 and No. 3

    • C. 

      No. 3 and No. 4

    • D. 

      No. 1 through 4

  • 61. 
    • A. 

      Your pocket

    • B. 

      Ziploc bag

    • C. 

      Parts bag

    • D. 

      Tool bag

  • 62. 
    • A. 

      1

    • B. 

      2

    • C. 

      3

    • D. 

      4

  • 63. 
    • A. 

      First and third

    • B. 

      First and second

    • C. 

      Second and third

    • D. 

      Third and fourth

  • 64. 
    Before operating an engine at the test cell, you must always check its status as indicated on the
    • A. 

      Crew chief’s log book of maintenance performed

    • B. 

      Maintenance log book

    • C. 

      Engine forms

    • D. 

      Aircraft forms

  • 65. 
    When used for ground operation, the SGT engine can be installed on
    • A. 

      Pods

    • B. 

      An H-frame

    • C. 

      A two-wheel trailer

    • D. 

      A four-wheel trailer

  • 66. 
    If you must torque a sequence of three or more bolts,
    • A. 

      Use maximum torque

    • B. 

      Torque from left to right

    • C. 

      Use a staggered sequence

    • D. 

      Overtorque, loosen, and retorque

  • 67. 
    • A. 

      Wet

    • B. 

      Dry

    • C. 

      Hot

    • D. 

      Cold

  • 68. 
    On an F100–PW–220 engine, the No. 2 bearing package is housed in the
    • A. 

      Compressor intermediate case

    • B. 

      Combustion case

    • C. 

      Fan inlet case

    • D. 

      Diffuser case

  • 69. 
    During a normal start on a GTCP 165 engine, the igniter plug continues firing until engine rotation in rpm reaches
    • A. 

      75%

    • B. 

      80%

    • C. 

      95%

    • D. 

      100%

  • 70. 
    If the input into the Fluke 8025A meter is over the range being used, what will the digital display show?
    • A. 

      OL

    • B. 

      OR

    • C. 

      COM

    • D. 

      OFF

  • 71. 
    The modulating and shutoff valve on a GTCP 165 engine will be fully open at what percent rpm?
    • A. 

      60%

    • B. 

      70%

    • C. 

      80%

    • D. 

      90%

  • 72. 
    • A. 

      2

    • B. 

      3

    • C. 

      4

    • D. 

      5

  • 73. 
    On a GTCP 165 engine, air for the load control system is extracted from the
    • A. 

      Torus

    • B. 

      Combustor

    • C. 

      Turbine plenum

    • D. 

      Compressor deswirl vanes

  • 74. 
    Engines are mounted in the fixed test cell on a thrust stand or are suspended
    • A. 

      By cargo straps

    • B. 

      From a cradle mount

    • C. 

      By a tailhook adapter

    • D. 

      On the model 4100 trailer

  • 75. 
    When operating a borescope, what part of the borescope illuminates the interior of the area you’re inspecting?
    • A. 

      Control unit

    • B. 

      Light guide tube

    • C. 

      Distal tip light guides

    • D. 

      Bending section lever

  • 76. 
    If you encounter engine trouble where more than one unit is at fault, you would first
    • A. 

      Go back and check engine forms again

    • B. 

      Replace all the units suspected to be at fault

    • C. 

      Try to repair the more complex unit on the spot

    • D. 

      Examine the unit that requires the least amount of time to replace

  • 77. 
    • A. 

      16

    • B. 

      20

    • C. 

      24

    • D. 

      28

  • 78. 
    • A. 

      Data collection unit (DCU)

    • B. 

      Digital Electronic Control (DEC)

    • C. 

      Engine analyzer unit (EAU)

    • D. 

      Supervisory control system (SCS)

  • 79. 
    • A. 

      Tapered

    • B. 

      Flathead

    • C. 

      Cotter

    • D. 

      Shear

  • 80. 
    An understanding of the operating principles of engine instruments will help you decide
    • A. 

      If an engine should be removed from an aircraft

    • B. 

      If the engine should be sent to the test cell

    • C. 

      The meanings of the instrument readings

    • D. 

      What tools are required for maintenance

  • 81. 
    • A. 

      Gasoline and kerosene

    • B. 

      Gasoline and diesel fuel

    • C. 

      Diesel fuel and kerosene

    • D. 

      Diesel fuel and aviation gasoline

  • 82. 
    Two units that work together to indicate the oil system is operating correctly are the oil pressure
    • A. 

      Relief valve and indicator

    • B. 

      Transmitter and indicator

    • C. 

      Relief valve and transmitter

    • D. 

      Synchronous unit and indicator

  • 83. 
    • A. 

      Engine oil

    • B. 

      Dry nitrogen

    • C. 

      A leak detector

    • D. 

      A soap-water solution

  • 84. 
    On engines with afterburners, the position of the exhaust nozzle is converted into an electrical signal by a
    • A. 

      Rheostat

    • B. 

      Rectifier

    • C. 

      Transducer

    • D. 

      Transformer

  • 85. 
    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

  • 86. 
    The term Pt2 means the
    • A. 

      Total (t) pressure (P) at flange 2 (2)

    • B. 

      Total (t) pressure (P) at station 2 (2)

    • C. 

      Temperature (t) and pressure (P) at flange 2 (2)

    • D. 

      Temperature (t) and pressure (P) at station 2 (2)

  • 87. 
    Engines inactive for over 180 days must have what accomplished?
    • A. 

      Motor the engine to circulate the oil

    • B. 

      Inspect reservoirs to ensure they are full

    • C. 

      Visually inspect compressor for corrosion

    • D. 

      Preservation run and fuel system preservation

  • 88. 
    The direct oil pressure gauge on a test cell is connected to an engine oil pressure line to indicate oil pressure without using wiring, indicator, or
    • A. 

      Aircraft transformer

    • B. 

      Engine transformer

    • C. 

      Aircraft transmitter

    • D. 

      Engine transmitter

  • 89. 
    • A. 

      TD valve

    • B. 

      Fuel control

    • C. 

      TD control

    • D. 

      Fuel nozzle

  • 90. 
    During vibration analysis, frequency is usually measured in
    • A. 

      Mils

    • B. 

      Phase lags

    • C. 

      Cycles per second

    • D. 

      Phases per second

  • 91. 
    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

  • 92. 
    When you are using a vibration analyzer, you will be notified when a preset signal has been exceeded by
    • A. 

      A horn alarm

    • B. 

      Flashing red lights

    • C. 

      The sound of a buzzer

    • D. 

      Flashing channel indicator LED

  • 93. 
    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

  • 94. 
    Prior to starting the engine when doing an anti-ice valve operational check on an F–16C/D, place the anti-ice engine switch to
    • A. 

      ON

    • B. 

      OFF

    • C. 

      START

    • D. 

      MANUAL

  • 95. 
    • A. 

      I

    • B. 

      III

    • C. 

      V

    • D. 

      VI

  • 96. 
    • A. 

      Air inlet modules

    • B. 

      Observation ports

    • C. 

      Air exhaust modules

    • D. 

      High-grade steel panels

  • 97. 
    • A. 

      Gear

    • B. 

      Gerotor

    • C. 

      Rotogear

    • D. 

      Sliding Vane

  • 98. 
    After running an engine in augmentation in the hush house, the augmentor tube is cooled by running the engine at idle for a period of
    • A. 

      1 minute

    • B. 

      3 minutes

    • C. 

      6 minutes

    • D. 

      5 minutes

  • 99. 
    • A. 

      Bernoulli’s principle

    • B. 

      Newton’s first law of motion

    • C. 

      Ohms Law

    • D. 

      Newton’s third law of motion

  • 100. 
    • A. 

      TF39-1C

    • B. 

      F100-GE-129

    • C. 

      F100-PW-220

    • D. 

      F100-PW-229