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Volume 4. Propellers And Small Gas Turbines

100 Questions
Volume 4. Propellers And Small Gas Turbines

Military questions

Questions and Answers
  • 1. 
    Which 54H60-91 propeller subassembly transmits engine torque to the propeller blades?
    • A. 

      Barrel

    • B. 

      Control

    • C. 

      Low pitch stop

    • D. 

      Pitchlock requlator

  • 2. 
    On the 54H60-91 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

  • 3. 
    On the 54H60-91 propeller, which is a function of the the pitchlock regulator?
    • A. 

      Stops the dome piston from increasing blade angle above 23.3

    • B. 

      Prevents the blades from decreasing pitch if hydraulic pressure is lost

    • C. 

      Prevents cam bearing rollers from bottoming out in the track slopes

    • D. 

      Prevents the propeller from going into the beta range when the throttle is positioned in alpha range

  • 4. 
    On the 54H60-91 propeller, which pitchlock component mechanically holds the stationary and rotating pitchlock ratchets apart during reversing adn unfeatherin operations?
    • A. 

      Pitchlock control cam

    • B. 

      Pitchlock ratchet piston

    • C. 

      Externally threaded ring

    • D. 

      Externally splined spacer ring

  • 5. 
    On the 54H60-91 propeller, which component is used in place of a shim plate on the No. 1 blade?
    • A. 

      Beveled thrust washer

    • B. 

      Stationary ratchet

    • C. 

      Beta segment gear

    • D. 

      Blade barrel shim

  • 6. 
    On the 54H60-91 propeller, which dome assembly part allow the rotating cam to turn while the stationary cam remains in a fixed postion?
    • A. 

      Roller shaft

    • B. 

      Track slopes

    • C. 

      Ball bearings

    • D. 

      Roller bearings

  • 7. 
    On the 54H60-91 propeller, what function is a task of the low pitch stop assembly?
    • A. 

      Prevents the popeller from goin in to the beta range when the throttle is positioned in the alpha range

    • B. 

      Limits cam travel and prevents the propeller from exceeding feather and reverse balde angles

    • C. 

      Prevents the blades from decreasing pitch if an overspeed condition occurs

    • D. 

      Transmits engine torque to the blades

  • 8. 
    On the 54H60-91 propeller, which component provides a means for balancing the propeller?
    • A. 

      Deicer cnotact ring holder

    • B. 

      Hub mounting bulkhead

    • C. 

      Front spinner

    • D. 

      Afterbody

  • 9. 
    On the 54H60-91 propeller, hydraulic fluid is directed from the directed from the pump housing to the barrel assembly through what component?
    • A. 

      Valve housing

    • B. 

      Low pich stop

    • C. 

      Transfer bearing

    • D. 

      Pitchlock regulator

  • 10. 
    On the 54H60-91 popeller, what is the function of the differential gear train assembly?
    • A. 

      Drives the main and standby pressure pumps

    • B. 

      Controls operation of the pilot valve and serves as an electrical ground

    • C. 

      Drives the rotation sleeve when the throttle is positioned in the beta range

    • D. 

      Transmits blade angle movement to the valve housin and drives the propeller governor flyweights

  • 11. 
    On the 54H60-91 propeller, during normal porpeller operation, the output of which pumps is used?
    • A. 

      Main pressure and main scavenge

    • B. 

      Standby pressure and main scavenge

    • C. 

      Auxiliary pressure and main pressure

    • D. 

      Auxiliary pressure and auxiliary scavenge

  • 12. 
    On the 54H60-91 propeller, which pump assists the main pressure pump when large blade angle movements are required?
    • A. 

      Main scavenge

    • B. 

      Standby pressure

    • C. 

      Auxiliary pressure

    • D. 

      Auxiliary scavenge

  • 13. 
    On the 54H60-91 propeller, which cam disarms the NTS system linkage when the throttle is positioned in teh beta range?
    • A. 

      Manual feather

    • B. 

      Beta follow up

    • C. 

      Speed set

    • D. 

      Beta set

  • 14. 
    On the 54H60-91 propeller, which valve, contained in the valve housing, controls the flow of hydraulic fluid to and from the dome assembly?
    • A. 

      Standby

    • B. 

      Feather

    • C. 

      Backup

    • D. 

      Pilot

  • 15. 
    The 54H60-91 propeller governor speeder spring tension positions the pilot valve to maintain what percent rpm in the beta range?
    • A. 

      99 to 103%

    • B. 

      104 to 108%

    • C. 

      109 to 113%

    • D. 

      114 to 118%

  • 16. 
    On the 54H60-91 propeller, when the throttle is moved to the GROUND IDLE position, what degree setting does the coordinator pointer indicate on the protractor?
    • A. 

      0*

    • B. 

      18*

    • C. 

      34*

    • D. 

      90*

  • 17. 
    Which switch, located in the control quadrant, activates the 54h-60-91 propeller governor speed bias servo assebly as the throttle is moved into the blight idle gate?
    • A. 

      Beta indicator

    • B. 

      Landing gear warning

    • C. 

      Low speed ground idle

    • D. 

      Synchrophaser disarming

  • 18. 
    The condition lever GND STOP position is only effective on the ground because the circuits made in this position are completed throw what switches?
    • A. 

      Landing gear touchdown

    • B. 

      Low speed ground idle

    • C. 

      Landing gear warning

    • D. 

      Air start

  • 19. 
    What component in the T56 engine coordinator provides reference signals to the electronic TD amplifier that are proportional to the desired TIT?
    • A. 

      Feather shaft

    • B. 

      Potentiomether

    • C. 

      65* microswitch

    • D. 

      66* microswitch

  • 20. 
    On the 54H60-91 propeller, the output of what pump is sufficient to supply hydraulic pressure for nomal propeller operation?
    • A. 

      Auxiliary pressure

    • B. 

      Standby pressure

    • C. 

      Backkup pressure

    • D. 

      Main pressure

  • 21. 
    On the 54H60-91 propeller, if the main filter becomes clogged, which valve opens to assure continued flow?
    • A. 

      Check

    • B. 

      Bypass

    • C. 

      Low pressure relief

    • D. 

      High pressure relief

  • 22. 
    On the 54H60-91 propeller, which valve sets and maintains a pressure differential of about 100 psi between system pressure and the increase- or decrease-pitch pressure?
    • A. 

      Check

    • B. 

      Bypass

    • C. 

      Low-pressure relief

    • D. 

      High-pressure relief

  • 23. 
    On the 54H60-91 propeller, when the backup valve is opened, the hydraulic pressure routed to the governoor pilot valve is used for which operation?
    • A. 

      Pitchlock

    • B. 

      Standby

    • C. 

      Reverse

    • D. 

      Airstart

  • 24. 
    On the 54H60-91 propeller, which pump is used to feather or unfeather the propeller during static propeller operation? 
    • A. 

      Main

    • B. 

      Backup

    • C. 

      Standby

    • D. 

      Auxiliary

  • 25. 
    On the 54H60-91 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

  • 26. 
    The purpose fo the 54H60-91 propeller pitchlock assembly is to prevent
    • A. 

      The loss of oil pressure

    • B. 

      An engine overspedd due to a loss of power

    • C. 

      The flow of hydraulic fluid to the pilot valve

    • D. 

      An engine ovespeed due to a loss fo hydraulic pressure

  • 27. 
    On the 54H60-91 propeller, what prevents engagement of the stationary and rotating retchets at blade angles below 25* and above 55*?
    • A. 

      An overspeed of 103.5%

    • B. 

      The pitchlock control cam

    • C. 

      A loss fo hydrulic pressure

    • D. 

      Increase- or decrease pitch pressure

  • 28. 
    On the 54H60-91 propeller, between the blade angles of 25* and 55*, what will keep the rotation and stationary ratchets disengaged?
    • A. 

      An overspeed of 103.5%

    • B. 

      The pitchlock control cam

    • C. 

      A loss fo hydrulic pressure

    • D. 

      Increase- or decrease pitch pressure

  • 29. 
    On the 54H60-91 propeller, the funcition  of the low pitch stop is to prevent the
    • A. 

      Propeller barrel from decreasing blade angle below 23.3* +_ .5*

    • B. 

      Dome piston from decresing blade angle below 23.3* +_ .5*

    • C. 

      Propeller barrel from decreasing blade angle below 34* +_ .5*

    • D. 

      Dome piston from dereasing blade angle below 34* +_ .5*

  • 30. 
    On the 54H60-91 propeller, what forces the stop levers on the low pitch stop to move outward?
    • A. 

      Wedge

    • B. 

      Servo valve

    • C. 

      Dome piston

    • D. 

      Hydraulic pressure

  • 31. 
    On the 54H60-91 propeller, when pessure builds to between 240 adn 280 psi, which valve is unseated and allows the stop levers to retract?
    • A. 

      Low pressure relief

    • B. 

      Governor pilot

    • C. 

      Backup

    • D. 

      Servo

  • 32. 
    What is coordinated by the throttle in the controllable pitch range?
    • A. 

      Blade pitch and engine fuel flow

    • B. 

      Blade pitch and temperature limiting

    • C. 

      Engine fuel flow and constant speed governing

    • D. 

      Temperature limiting and constant speed governing

  • 33. 
    On the 54H60-91 propeller, during beta range operation, what moves the pilot valve?
    • A. 

      Throttle

    • B. 

      Hydraulic pressure

    • C. 

      Cams adn mechanical linkage

    • D. 

      Flyweights and speeder spring

  • 34. 
    On the 54H60-91 propeller, during beta range operation, the rotation of which cam moves the mechanical linkage to center the governor pilot valve?
    • A. 

      Beta set

    • B. 

      Speed set

    • C. 

      Backup balve

    • D. 

      Beta follow-up

  • 35. 
    On the 54H60-91 propeller, during alpha range operation, which cam changes speeder spring tension so the governor pilot valve can maintain 100 percent rpm?
    • A. 

      Beta set

    • B. 

      Speed set

    • C. 

      Backup valve

    • D. 

      Beta follow-up

  • 36. 
    On the 54H60-91 propeller, during an underspeed condition, what moves the pilot valve?
    • A. 

      Decreased hydraulic pressure

    • B. 

      Increased hydraulic pressure

    • C. 

      Speeder spring

    • D. 

      Flyweights

  • 37. 
    On the 54H60-91 propeller, when feathering the propeller, what acts on the mechanical linkage to open the feather actuating valve?
    • A. 

      Throttle

    • B. 

      Beta shaft

    • C. 

      Pilot valve

    • D. 

      Manual feather cam

  • 38. 
    On the 54H60-91 propeller, during feathering operation, the feather valve is positioned to meter hydraulic fluid to the
    • A. 

      Aft end of the dome piston

    • B. 

      Forward end of the dome piston

    • C. 

      Decreased-pitch side of the pilot valve

    • D. 

      Increased-pitch side of the pilot valve

  • 39. 
    On the 54H60-91 propeller, which valve is a backup in case the feather valve fails during feathering operation?
    • A. 

      Pilot

    • B. 

      Feather solenoid

    • C. 

      Feather actuating

    • D. 

      Standby pump check

  • 40. 
    As the 54H60-91 propeller feathers, the output of which pump decreases (drops off)?
    • A. 

      Auxiliary pressure

    • B. 

      Auxiliary scavenge

    • C. 

      Main scavenge

    • D. 

      Feather

  • 41. 
    On the 54H60-91 propeller, during feather operation, between approximately what psi are the pressure cutout switch contacts opened?
    • A. 

      0 to 200

    • B. 

      300 to 500

    • C. 

      600 to 800

    • D. 

      900 to 1,100

  • 42. 
    On the 54H60-91 propeller, which component is the primary electical ground for energizing the feather override holding coil?
    • A. 

      Feather relay

    • B. 

      Feather solenoid

    • C. 

      Pressure cutout switch

    • D. 

      PCBS

  • 43. 
    When attempting to unfeather the 54H60-91 propeller in flight, where must the throttle be positioned?
    • A. 

      Any throttle position

    • B. 

      Above FLT IDLE

    • C. 

      At TAKE OFF

    • D. 

      At GND IDLE

  • 44. 
    Which two cams, on the alpha shaft, control the 54H60-91 propeller unfeathering operation?
    • A. 

      Manual feather and pressure cutout backup switch

    • B. 

      Speed set and pressure cutout backup switch

    • C. 

      Speed set and beta follow-up

    • D. 

      Manual feather and beta set

  • 45. 
    On the 54H60-91 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

  • 46. 
    On the 54H60-91 propeller, after the NTS system actuator rod positins the mechanical linkage in the valve housing when a negative torque condition occurs, what component is shifted?
    • A. 

      Speed set cam

    • B. 

      Feather valve

    • C. 

      Beta set cam

    • D. 

      Pilot valve

  • 47. 
    Besides maintaing the optimum blade phase angle relationship between all propellers, what else does sychrophhasing do?
    • A. 

      Keeps the propellers rotation at the same speed

    • B. 

      Keeps the propellers rotating at different speeds

    • C. 

      Prevents the pilot valve from shifting to increase blade angle

    • D. 

      Prevents the pilot valve from shifting to decrease balde angle

  • 48. 
    The fuel governing check switches are used to reset the propeller governor t what percentage of rpm in the alpha range?
    • A. 

      100%

    • B. 

      102%

    • C. 

      104%

    • D. 

      106%

  • 49. 
    Where is the pickup portion of the pulse generator located?
    • A. 

      No. 1 blade

    • B. 

      Pump housing

    • C. 

      Valve housing

    • D. 

      Deicer contact ring holder assembly

  • 50. 
    The pulse generator inputs to the synchrophaser unit are used only
    • A. 

      To drive the feedback potentiometer

    • B. 

      As a backup for throttle anticipation

    • C. 

      When a master propeller is selected

    • D. 

      To indicate actual rpm

  • 51. 
    On the 54H60-91 propeller speed bias motor, when the control winding boltage is different from the reference-winding voltage, what results?
    • A. 

      Throttle anticipation potentiometer speeds up or slows down the engine

    • B. 

      Speed bias motor rotates, and increases or decreases blade angle

    • C. 

      Speed bias sevo control locks the clutch and brake unit

    • D. 

      Feedback potentiomether recenters the speed bias motor

  • 52. 
    The master synchrophaser board located int the synchrophaser unit contains a master channel and a slave channel. these channels are used by which propellers?
    • A. 

      No. 1 and no. 2

    • B. 

      No. 2 and no. 3

    • C. 

      No. 3 and no. 4

    • D. 

      All four propellers

  • 53. 
    Which board in the synchrophaser unit receives input signals that are compared together, modified, and used to control the speed bias motors?
    • A. 

      Double slave

    • B. 

      Power supply

    • C. 

      Power amplifier

    • D. 

      Master synchrophaser

  • 54. 
    How much change in rpm does the compensating network in the synchrophaser unit allow the speed bias motor to correct?
    • A. 

      2%

    • B. 

      4%

    • C. 

      6%

    • D. 

      8%

  • 55. 
    On the 54H60-91 propeller, in the mechanical governing mode, what causes the pilot valve to move and set propeller speed?
    • A. 

      Throttle movement

    • B. 

      Speeder spring or flyweights

    • C. 

      Beta set cam and beta follow-up cam

    • D. 

      Speed set cam and manual feather cam

  • 56. 
    Mechanical governing provides the foundation fo rwhat other propeller governing modes?
    • A. 

      Synchrophasing and beta range

    • B. 

      Normal and synchrophasing

    • C. 

      Normal and beta range

    • D. 

      Alpha and beta range

  • 57. 
    Which is a function of normal governing?
    • A. 

      Blade phase angles

    • B. 

      Propeller reindexing

    • C. 

      Throttle anticipation

    • D. 

      Identical propeller speeds

  • 58. 
    For the 54H60-91 propeller to operate in the normal governing mode, the propeller governor control switch must be placed in te NORMAL position and what other conditions must be met?
    • A. 

      Throttle at or above FLT IDLE, and synchrophase master in ENG 2 or ENG 3 position

    • B. 

      Throttle at or above FLT IDLE, and synchrophase master switch in OFF

    • C. 

      Throttle below FLT IDLE and prop resnchrophase switch in RESYNC/INDEX

    • D. 

      Throttle below FLT IDLE and fuel governing switch in CHECK

  • 59. 
    During normal governign operation, what stabilizes the propeller governor during rapid throttle movements?
    • A. 

      Tachometer generator

    • B. 

      Feedback potentiometer

    • C. 

      Speed stabilization circuit

    • D. 

      Throttle anticipation circuit

  • 60. 
    To reduce the noise and vibration levels, synchrophasing mode of governing maintains all the propellers at
    • A. 

      Identical speeds and the same blade phase angles

    • B. 

      Different speeds and the same blade phase angles

    • C. 

      Identical speeds and optimum blade phase angles

    • D. 

      Different speeds and optimum blade phase angles

  • 61. 
    How many slave channels are contained on the master synchrophaser board in the synchrophaser unit?
    • A. 

      One

    • B. 

      Two

    • C. 

      Three

    • D. 

      Four

  • 62. 
    If the master propeller fails during synchrophaser governing, the slave propellers follow the master to
    • A. 

      A 96% mechanical stop

    • B. 

      About a 2% speed change

    • C. 

      The mechanical governor setting

    • D. 

      The preset master propeller governing setting

  • 63. 
    Which type fo special inspection can be used to find minute cracks on a propeller blade?
    • A. 

      Magnetic

    • B. 

      Purple dye

    • C. 

      Magna flux

    • D. 

      Spectrometric

  • 64. 
    When performing a loose blade inspection on the 54H60-91 propeller, fore-and-aft play should not exceed what limit?
    • A. 

      1/4 inch

    • B. 

      1/2 inch

    • C. 

      3/4 inch

    • D. 

      1 inch

  • 65. 
    When performing the blade tracking inspection on the 54H60-91 propeller, the calculated difference in blade tracks shouldnot exceed what limit?
    • A. 

      1/16 inch

    • B. 

      3/16 inch

    • C. 

      5/16 inch

    • D. 

      7/16 inch

  • 66. 
    When you perform a static blade transition check and abnormal noises are detected, the 54H60-91 propeller must be returned to depot. What AFTO form must be documented and accompany the propeller back to depot?
    • A. 

      45

    • B. 

      95

    • C. 

      244

    • D. 

      781

  • 67. 
    On the 54H60-91 propeller, if a nick is found on the metal protion of the blade when performing a blade inspection, which tool is used to measure the depth of the damage?
    • A. 

      Internal caliper

    • B. 

      Inside micrometer

    • C. 

      Blade checking indicator

    • D. 

      Ruler with 1/64" increments

  • 68. 
    The term "No. 320 grit" refers to which feature of sandpaper?
    • A. 

      Type

    • B. 

      Strength

    • C. 

      Coarseness

    • D. 

      Flexibility

  • 69. 
    On the 54H60-91 propeller, wen performing blade repair if blade damage was due to propeller blade impact, you must remove all traces of the damage, and then, using emery cloth, remove an additional
    • A. 

      0.002 inch

    • B. 

      0.004 inch

    • C. 

      0.020 inch

    • D. 

      0.040 inch

  • 70. 
    When the ambient temperature is greater than 65*F and a patch is bonded to the blade fairing, what is the recommended drying time before running the repaired propeller on the aircraft engine?
    • A. 

      24 hours

    • B. 

      48 hours

    • C. 

      5 days

    • D. 

      7 days

  • 71. 
    On the 54H60-91 propeller, when repairing a propeller blade heater, what is the maximum number of wires that can be spliced in any one heater?
    • A. 

      4

    • B. 

      6

    • C. 

      8

    • D. 

      10

  • 72. 
    On the 54H60-91 propeller, to avoid being crushed after emoving the dome shell during dome piston seal replacement, you should keep your fingers away from the
    • A. 

      Dome shell

    • B. 

      Cam tracks

    • C. 

      Dome piston

    • D. 

      Seal area of the piston

  • 73. 
    On the 54H60-91 propeller, after the new packings are in place during dome piston seal replacement, you need to turn them so  what color faces outward?
    • A. 

      Red

    • B. 

      Blue

    • C. 

      Green

    • D. 

      White

  • 74. 
    During 54H60-91 propeller dynamic balancing, the propeller balance analyzer receive its two inputs from
    • A. 

      The forward and rear engine lord mounts

    • B. 

      The hub mounting bulkhead and quadrant

    • C. 

      A velocimeter and the magnetic pulse generator

    • D. 

      An accelerometer and a NTS switch

  • 75. 
    To calculate the required weight change when u use the 192A spectrum analyzer, you will need to plot the data on a
    • A. 

      Balance sensitivity chart

    • B. 

      Solution screen printout

    • C. 

      Balance chart worksheet

    • D. 

      Weight balance sheet

  • 76. 
    When balancing a 54H60-91 propeller, the velocimeter is secured to the forward side of the RGB at what position (as viewed from the rear)?
    • A. 

      12 o'clock

    • B. 

      9 o'clock

    • C. 

      6 o'clock

    • D. 

      3 o'clock

  • 77. 
    On the 54H60-91 propeller, propeller balancing is not required if the propeller imbalance is at or below what level?
    • A. 

      0.2 IPS

    • B. 

      0.4 IPS

    • C. 

      0.2 degrees

    • D. 

      0.4 degrees

  • 78. 
    What R391 Dowty propeller component translates piston and shaft movement to vary propeller blade angle?
    • A. 

      Hub

    • B. 

      Beta tube

    • C. 

      Operating pin

    • D. 

      Adjustment washer

  • 79. 
    Which R391 Dowty propeller component routes engine oil to and from the cylinder and piston?
    • A. 

      Beta tube

    • B. 

      GBE valve

    • C. 

      PUAD

    • D. 

      GMAD

  • 80. 
    What R391 Dowty propeller assembly part provides an aerodynamic faring over the aft section of the hub?
    • A. 

      Backplate

    • B. 

      Rear spinner

    • C. 

      Front spinner

    • D. 

      Afterbody assemblies

  • 81. 
    Which component controls the R391 Dowty propeller blade angle by direction engine oil flow through the beta tube to the cylinder and piston?
    • A. 

      PCU

    • B. 

      GBE valve

    • C. 

      PUAD

    • D. 

      GMAD

  • 82. 
    For the R391 Dowty propeller, what component(s) relay propeller blade angle to the FADEC units
    • A. 

      PCU

    • B. 

      PUAD

    • C. 

      GBE valve solenoid

    • D. 

      RVDTS

  • 83. 
    For the R391 Dowty propeller, the feather valve is located inside the
    • A. 

      PCU

    • B. 

      GBE valve

    • C. 

      PUAD

    • D. 

      GMAD

  • 84. 
    For the R391 Dowty propeller, what component provides blade angle feedback to the FADEC by two RVDT?
    • A. 

      PCU

    • B. 

      GBE valve

    • C. 

      PUAD

    • D. 

      GMAD

  • 85. 
    For the R391 Dowty propeller, during flight operation, what directs the PCU to meter fine and coarse pitch oil to maintain 1020.7 rpm?
    • A. 

      RVDTS

    • B. 

      FADEC

    • C. 

      GBE valve solenoid

    • D. 

      PUAD

  • 86. 
    On the R391 Dowty propeller, what does the DITU use to monitor itself for malfunctions?
    • A. 

      BIT

    • B. 

      ECBU

    • C. 

      FADEC

    • D. 

      RVDTS

  • 87. 
    The pneumatic air bled from the small gas turbine engine cannot be used to
    • A. 

      Inflate aircraft tires

    • B. 

      Remove snow and ice from aircraft surfaces

    • C. 

      Supply pneumattic power to aricraft pnehmatic starters

    • D. 

      Provide pneumatic power for air-conditioning systems

  • 88. 
    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

  • 89. 
    On an GTCP165 engine, air is compressed by the single-stage centrifugal compressor assembly, and then discharged into
    • A. 

      The diffuser case

    • B. 

      The turbine plenum

    • C. 

      The load control valve

    • D. 

      A vaned deswirl assembly

  • 90. 
    The impeller wheel and tow turbine wheels in the turbine setion of the GTCP165 engine are connected by
    • A. 

      Tie bolts

    • B. 

      Helical splines

    • C. 

      A common shaft

    • D. 

      A gear reduction gerbox

  • 91. 
    On an GTCP165 engine, turbine discharge temperature is controlled by the
    • A. 

      PMG

    • B. 

      Governor

    • C. 

      Pneumatic thermostat

    • D. 

      Fuel flow divider valve

  • 92. 
    On an GTCP165 engine, the accessory drive section forward housing provides mounts for the components, which include furel control unit, oil pump assembly, oil filter element, vane-axial fan assembly, and
    • A. 

      Ignition exciter

    • B. 

      Fuel/oil cooler

    • C. 

      Air/oil cooler

    • D. 

      PMG

  • 93. 
    On a GTCP165 engine, which signals are used by the furl control unit to control engine operation?
    • A. 

      Pt0 and Pt7

    • B. 

      Engine speed and turbine inle temperature

    • C. 

      Ambient inlet pressure and trubine exhaust pressure

    • D. 

      Engine speed and pneumatic thermostat (load control) air pressure

  • 94. 
    On a GTCP165 engine shutdown, what valve closes to ensure fuel-flow is terminated?
    • A. 

      Poppet

    • B. 

      Scheduling

    • C. 

      Fuel flow divider

    • D. 

      Fuel shutoff solenoid

  • 95. 
    What type of sump design is the oil system on a GTCP165 engine?
    • A. 

      Wet

    • B. 

      Dry

    • C. 

      Hot

    • D. 

      Cold

  • 96. 
    On a GTCP165 engine, which component shuts the engine down if the oil pressure drops below the safe minimum operating limit?
    • A. 

      Oil/air cooler

    • B. 

      Oil filter assembly

    • C. 

      Oil pressure switch

    • D. 

      Oil pressure regulator valve

  • 97. 
    On a GTCP165 engine oil system, air that leaks past various oil seals exits through the
    • A. 

      Vent system

    • B. 

      Pressure system

    • C. 

      Scavenge system

    • D. 

      Auxiliary system

  • 98. 
    On a GTCP165 engine, the speed switch control does not control the engine during
    • A. 

      Startup

    • B. 

      Acceleration

    • C. 

      Loaded operation

    • D. 

      No-load operation

  • 99. 
    During normal GTCP165 engine shutdown, what circuit trips to stop the engine?
    • A. 

      100-percent circuit

    • B. 

      110-percent circuit

    • C. 

      Load-control circuit

    • D. 

      Speed-switch control circuit

  • 100. 
    The modulating and shutoff valve on a GTCP165 engine will be fully open at what percent rpm?
    • A. 

      60

    • B. 

      70

    • C. 

      80

    • D. 

      90