Powerplant Part 4

  1. Determine which portion of the AD is applicable for Model O-690 series engine, serial No. 5863-40 with 283 hours' time in service.
    This is the compliance portion of an FAA Airworthiness Directive.Compliance required as indicated:
    (A) For model O-690 series engines, serial Nos. 101-40 through 5264-40 and IO-690 series engines, serial Nos. 101-48 through 423-48, compliance with (C) required within 25 hours' time in service after the effective date of this AD and every 100 hours' time in service thereafter.
    (B) For Model O-690 series engines, serial Nos. 5265-40 through 6129-40 and IO-690 series engines, serial Nos. 424-48 through 551-48, compliance with (C) required as follows:
    (1) Within 25 hours' time in service after the effective date of this AD and every 100 hours' time in service thereafter for engines with more than 275 hours' time in service on the effective date of this AD.
    (2) Prior to the accumulation of 300 hours total time in service and every 100 hours' time in service thereafter for engines with 275 hours or less time in service on the effective date of this AD.

    (C) Inspect the oil pump drive shaft (P/N 67512) on applicable engines in accordance with instructions contained in Connin Service Bulletin No. 295. Any shafts which are found to be damaged shall be replaced before further flight. These inspections shall be continued until Connin P/N 67512 (redesigned) or P/N 74641 oil pump drive shaft is installed at which time the inspections may be discontinued.
    (B), (1)
  2. A Cessna 180 aircraft has a McCauley propeller Model No. 2A34C50/90A. The propeller is severely damaged in a ground accident, and this model propeller is not available for replacement. Which of the following should be used to find an approved alternate replacement?
    Aircraft Specifications/ Type Certificate Data Sheets.
  3. Which of the following is used to monitor the mechanical integrity of the turbines, as well as to check engine operating conditions of a turbine engine?
    Exhaust Gas Temperature
  4. On a reciprocating engine aircraft using a shrouded exhaust muffler system as a source for cabin heat, the exhaust system should be
    Visually inspected for any indication of cracks or an operational carbon monoxide detection test should be done.
  5. (1) Airworthiness Directives are Federal Aviation Regulations and must be complied with unless specific exemption is granted.
    (2) Airworthiness Directives of an emergency nature may require immediate compliance upon receipt.Regarding the above statements,
    Both No.1 and No.2 are true.
  6. Which of the following contains a minimum checklist for 100-hour inspections of engines?
    14 CFR Part 43 Appendix D
  7. When must an Airworthiness Directive (AD) be complied with after it becomes effective?
    As specific in the AD.
  8. Which of the following contains a table that lists the engines to which a given propeller is adaptable?
    Propeller Type Certificate Data Sheet
  9. Which of the following component inspections is to be accomplished on a 100-hour inspection?
    Check cylinder compression
  10. You are performing a 100-hour inspection on an R985-22 aircraft engine. What does the '985' indicate?
    The total piston displacement of the engine.
  11. Where would one find type design information for an R1830-92 engine certificated under the Civil Air Regulations (CAR) and installed on a DC-3?
    The aircraft engine specifications.
  12. Straightening nitrided crankshafts is
    Not recommended
  13. The breaking loose of small pieces of metal from coated surfaces, usually caused by defective plating or excessive loads, is called
  14. Each powerplant installed on an airplane with a Standard Airworthiness Certificate must have been
    Type Certificated
  15. A severe condition of chafing or fretting in which a transfer of metal from one part to another occurs is called
  16. Indentations on bearing races caused by high static loads are known as
  17. When inspecting an aircraft reciprocating engine what document is used to determine if the proper magnetos are installed?
    Aircraft Engine Specifications or Type Certificate Data Sheets
  18. Which of the following can inspect and approve an engine major repair for return to service?
    Certificated Mechanic with Inspection Authorization.
  19. What publication is used for guidance to determine whether a powerplant repair is major or minor?
    Federal Aviation Regulations, Part 43, Appendix A
  20. The airworthiness standards for the issue of type certificates for small airplanes with nine or less passenger seats in the normal, utility, and acrobatic categories may be found in the
    Federal Aviation Regulation, Part 23
  21. Which of the following contains approved data for performing a major repair to an aircraft engine?
    Manufacturer's maintenance instruction when FAA approved.
  22. What maintenance record(s) is/are required following a major repair of an aircraft engine?
    Entries in the engine maintenance record and FAA Form 337
  23. A ground incident that results in propeller sudden stoppage would require a crankshaft runout inspection. What publication would be used to obtain crankshaft runout tolerance?
    Current Manufacturer's maintenance instructions.
  24. Select the Airworthiness Directive applicability statement which applies to an IVO-355 engine, serial number T8164, with 2,100 hours' total time and 300 hours since rebuilding.
    Applies to all IVO-355 engines, and serial numbers T8000 through T8300, having less than 2,400 hours' total time.
  25. What publication contains the mandatory replacement time for parts of a turbine engine?
    Engine Manufacturer's service instructions.
  26. How are discharge nozzles in a fuel injected reciprocating engine identified to indicate the flow range?
    By an identification letter stamped on one of the hexes of the nozzle body.
  27. What section in the instructions for continued airworthiness is FAA approved?
    Airworthiness Limitations section.
  28. Which of the following conditions is usually not acceptable to any extent in turbine blades?
  29. (1) Serviceability limits for turbine blades are much more stringent than are those for turbine nozzle vanes.
    Only No.1 is True
  30. Which unit most accurately indicates fuel consumption of a reciprocating engine?
    Fuel Flowmeter.
  31. The fuel flowmeter used with a continuous-fuel injection system installed on an aircraft horizontally opposed reciprocating engines measures the fuel pressure drop across the
    Fuel Nozzles
  32. The principal fault in the pressure type fuel flowmeter indicating system, installed on a horizontally opposed continuous-flow fuel injected aircraft reciprocating engine, is that a plugged fuel injection nozzle will cause a
    Higher than normal fuel flow indication.
  33. Motor driven impeller and turbine fuel flow transmitters are designed to transmit data
    Using aircraft Electrical system power.
  34. The fuel-flow indicator rotor and needle for a motor-impeller and turbine indicating system is driven by
    An electrical signal
  35. On a twin-engine aircraft with fuel-injected reciprocating engines, one fuel-flow indicator reads considerably higher than the other in all engine operating configurations. What is the probable cause of this indication?
    One or more fuel nozzles clogged.
  36. The fuel-flow indication system used with many fuel-injected opposed engine airplanes utilizes a measure of
    Fuel Pressure
  37. In addition to fuel quantity, a computerized fuel system (CFS) with a totalizer-indicator provides indication of how many of the following?

    3. Fuel time remaining at current power setting.
  38. The fuel-flow indication data sent from motor driven impeller and turbine, and motorless type fuel flow transmitters is a measure of
    Fuel mass-flow
  39. In an aircraft equipped with a pressure-drop type fuel-flow indicating system, if one of the injector nozzles becomes restricted, this would cause a decrease in fuel flow with
    An increased fuel flow indication on the gauge.
  40. A manifold pressure gauge is designed to
    Indicate absolute pressure in the intake manifold.
  41. The purpose of an exhaust gas analyzer is to indicate the
    Fuel/air ratio being burned in the cylinders.
  42. Which of the following types of electric motors are commonly used in electric tachometers?
    Sychronous Motors
  43. Where are the hot and cold junctions located in an engine cylinder temperature indicating system?
    The hot junction is located at the cylinder and the cold junction is located at the instrument.
  44. Basically, the indicator of a tachometer system is responsive to change in
  45. Which statement is correct concerning a thermocouple-type temperature indicating instrument system?
    It requires no external power source.
  46. Which statement is true regarding a thermocouple-type cylinder head temperature measuring system?
    The voltage output of the thermalcouple system is determined by the temperature difference between the two ends of the thermalcouple.
  47. What basic meter is used to indicate cylinder head temperature in most aircraft?
  48. Which of the following is a primary engine instrument?
  49. A complete break in the line between the manifold pressure gauge and the induction system will be indicated by the gauge registering
    Prevailing Atmospheric Pressure.
  50. Engine oil temperature gauges indicate the temperature of the oil
    Entering the engine.
  51. Why do helicopters require a minimum of two synchronous tachometer systems?
    One indicates engine RPM and the other main rotor RPM.
  52. If the thermocouple leads were inadvertently crossed at installation, what would the cylinder temperature gauge pointer indicate?
    Moves off-scale on the zero side of the meter.
  53. A common type of electrically operated oil temperature gauge utilizes
    Either a Wheatstone bridge or ratiometer circuit.
  54. The indication on a thermocouple-type cylinder head temperature indicator is produced by
    A current generated by the temperature difference between dissimiliar metal hot and cold junctions.
  55. (1) Powerplant instrument range markings show whether the current state of powerplant operation is normal, acceptable for a limited time, or unauthorized.
    (2) Powerplant instrument range markings are based on installed engine operating limits which may not exceed (but are not necessarily equal to) those limits shown on the engine Type Certificate Data Sheet.Regarding the above statements,
    Both No.1 and No.2 are true.
  56. Thermocouple leads
    Are designed for a specific installation and may not be altered.
  57. (1) Engine pressure ratio (EPR) is a ratio of the exhaust gas pressure to the engine inlet air pressure, and indicates the thrust produced.
    Only No.1 is true.
  58. What unit in a tachometer system sends information to the indicator?
    The three-phase AC generator.
  59. (1) Generally, when a turbine engine indicates high EGT for a particular EPR (when there is no significant damage), it means that the engine is out of trim.
    (2) Some turbine-powered aircraft use RPM as the primary indicator of thrust produced, others use EPR as the primary indicator.Regarding the above statements,
    Both No.1 and No.2 are true
  60. Engine pressure ratio is determined by
    Dividing turbine outlet total pressure by engine inlet total pressure.
  61. Jet engine thermocouples are usually constructed of
  62. Which of the following instrument discrepancies require replacement of the instrument?

    2. Glass cracked.
    4. Will not zero out.
    5. Pointer loose on shaft
    8. Fogged.
    2, 4, 5, 8
  63. A Bourdon-tube instrument may be used to indicate
    1. pressure.
    2. temperature.
    1 and 2
  64. An indication of unregulated power changes that result in continual drift of manifold pressure indication on a turbosupercharged aircraft engine is known as?
  65. Which of the following instrument conditions is acceptable and does NOT require immediate correction?
    screws loose.

    5. Case paint chipped.
  66. A change in engine manifold pressure has a direct effect on the
    Mean effective cylinder pressure.
  67. What instrument on a gas turbine engine should be monitored to minimize the possibility of a 'hot' start?
    Turbine inlet temperature.
  68. In regard to using a turbine engine oil analysis program, which of the following is NOT true?
    Generally, an accurate trend forecast may be made after an engine's first oil sample analysis.
  69. On an aircraft turbine engine, operating at a constant power, the application of engine anti-icing will result in
    Noticeable shift in EPR.
  70. Engine pressure ratio is the total pressure ratio between the
    Front of the compressor and rear of the turbine.
  71. What would be the possible cause if a gas turbine engine has high exhaust gas temperature, high fuel flow, and low RPM at all engine power settings?
    Turbine damage or loss of turbine efficiency
  72. What is the primary purpose of the tachometer on an axial-compressor turbine engine?
    Monitor engine RPM during starting and to indicate overspeed conditions.
  73. The engine pressure ratio (EPR) indicator is a direct indication of
    Engine thrust being produced.
  74. The exhaust gas temperature (EGT) indicator on a gas turbine engine provides a relative indication of the
    Turbine inlet temperature.
  75. What instrument indicates the thrust of a gas turbine engine?
    Engine Pressure Ratio Indicator.
  76. In a turbine engine, where is the turbine discharge pressure indicator sensor located?
    Immediatly aft of the last turbine stage.
  77. In what units are turbine engine tachometers calibrated?
    Percent of engine RPM.
  78. Instruments that provide readings of low or negative pressure, such as manifold pressure gauges, are usually what type?
    Diaphragm or bellows.
  79. Instruments that measure relatively high fluid pressures, such as oil pressure gauges, are usually what type?
    Bourdon Tube.
  80. The RPM indication of a synchronous ac motor-tachometer is governed by the generator
  81. The EGT gauge used with reciprocating engines is primarily used to furnish temperature readings in order to
    Obtain the best mixture setting for fuel efficiency
  82. A red triangle, dot, or diamond mark on an engine instrument face or glass indicates
    Maximum limit for high transients such as starting.
Card Set
Powerplant Part 4
Engine Inspection, Engine Instrument Systems