Term
(601) What is the composition of JP-8 fuel? |
|
Definition
|
|
Term
(601) Jet aircraft operating at moderately high altitudes increase the fuel system's susceptibility to : |
|
Definition
| higher viscosity of jet fuels |
|
|
Term
(602 One micron is a metric linear measurement that is equal to |
|
Definition
|
|
Term
(602) Materials such as rust and scale, along with lesser amounts of sand and airborne dirt, are the most common forms of |
|
Definition
|
|
Term
(602) The amount of water in jet fuel is dependent on the |
|
Definition
| composition and temperature of the fuel |
|
|
Term
(603) The main fuel control allows the engine to safely accelerate, reducing the possibility of |
|
Definition
|
|
Term
(603) The purpose of a fuel/oil cooler in a fuel system is to |
|
Definition
| heat the fuel and cool the oil. |
|
|
Term
(603) During a visual inspection, how can you tell when a fuel filter is clogged? |
|
Definition
| A differential pressure indicator is actuated. |
|
|
Term
(604) On a dual-spool , axial-flow engine, what controls thrust production of the engine? |
|
Definition
| Controlling turbine inlet temperature. |
|
|
Term
(604) During jet engine deceleration, a hydromechanical fuel control schedules fuel flow as a function of. |
|
Definition
|
|
Term
(604) Which term describes a jet engine fuel metering device that is really two fuel controls in one component? |
|
Definition
|
|
Term
(604) A fuel control must sense certain variables from the engine. The F100 unified fuel control (UFC) does this through |
|
Definition
|
|
Term
(604) On fuel controls that require setting during an engine trim, calibration and/or adjustment screws must be |
|
Definition
| safety sealed and/or lockwired. |
|
|
Term
(605) When in the primary mode, what controls the operation of the F100-PW-220 engine? |
|
Definition
| Digital electronic engine control (DEEC) |
|
|
Term
(605) On an F100-PW_220 engine, the digital electronic engine control (DEEC) is cooled by |
|
Definition
|
|
Term
(605) For actuation of the variable vane systems on an F100-PW-220 engine, the main fuel control (MFC) provides |
|
Definition
| fuel pressure to the CIVV and RCVV actuators. |
|
|
Term
(605) Which F100-PW-220 engine fuel system component controls pressurization of the core engine fuel system? |
|
Definition
|
|
Term
(605) Core engine fuel flow sequence on an F100-PW-200 engine starts at the main fuel pump and then goes through the |
|
Definition
| main fuel control, fuel/oil cooler, pressurizing and dump valve, and fuel nozzles. |
|
|
Term
(606) The F110-GE-129 engine main engine control contains 3-D cams that provide mechanical schedules through |
|
Definition
|
|
Term
(606) In the F110-GE-129 engine's fuel nozzle assembly, the integral check valve |
|
Definition
| prevents back flow and maintains a full fuel manifold after engine shutdown. |
|
|
Term
| 23. (606)When the augmentor fuel filter bowl is removed from an F110-GE-129 engine, the antileak service shut off valve |
|
Definition
| Prevents fuel leakage from the discharge side of the filter. |
|
|
Term
| 24. (606) If an F110-GE-129 engine is operating in the secondary mode, all of the following conditions exist, except |
|
Definition
| main high-energy ignition system permanently deenergized |
|
|
Term
| 25.(606) During F110-GE-129 engine operation, the augmentor fuel manifolds are kept full to prevent |
|
Definition
|
|
Term
| 26. (606) During F110-GE-129 engine operation, what valve closes when augmentation discontinues? |
|
Definition
|
|
Term
| 27. (607) Operational control of the F108-CF-100 engine is achieved by the use of the power lever, fuel shut-off lever, and |
|
Definition
| power management control. |
|
|
Term
| 28.(607) On which component of the F108 engine is the main fuel/oil heat exchanger mounted? |
|
Definition
|
|
Term
| 29. (607) On the F108 engine, the main engine control (MEC) uses fuel from the fuel pump as a hydraulic medium to control the |
|
Definition
| both variable stator vanes (VSV and variable bleed valves (VBV). |
|
|
Term
| 30. On an F108-CF-100 engine, the power management control is to |
|
Definition
override the MEC to provide a scheduled corrected fan rotor speed. |
|
|
Term
| 31. (608) When classified as to struture, which of the following is not a type of an oil pump? |
|
Definition
|
|
Term
| 32.(608) Which type of oil pump consists of a gear and rotor within a housing? |
|
Definition
|
|
Term
| 33.(608) Which type of valve permits oil flow in only one direction? |
|
Definition
|
|
Term
| 34.(608) What is the purpose of an oi-temperature control valve used with air/oil coolers? |
|
Definition
| To direct oil around or through the cooler |
|
|
Term
| 35.(608)What type of oil seal has soft metal as its basic composition and allows a small amount of airflow to prevent oil seepage? |
|
Definition
|
|
Term
| 36.(608)When and ingine is not operating, static preload for a carbon oil seal is porvided by |
|
Definition
|
|
Term
| 37.(608)How should carbon seals be cleaned? |
|
Definition
| By soaking them in clean, warm engine lubricating oil for 30 minutes. |
|
|
Term
| 38. (609) The F100-PW-100 engine oil pressure varies with N2 speed, engine inlet oil temperature, and |
|
Definition
|
|
Term
| 39. (609)What term is used to indicate that air is being mixed with the oil in the oil pump to create pockets of air? |
|
Definition
|
|
Term
| 40. (609) In an engine oil tank, which device separates the air from the oil? |
|
Definition
|
|
Term
| 41. (609) Which type of oil system stores the oil in a tank fitted to the side of the engine? |
|
Definition
|
|
Term
| 42. (609) Which type of oil system design places the oil cooler in the pressure substytem? |
|
Definition
|
|
Term
| 43.(610) How many lube scavenge elements are there on an F110-GE-129 engines? |
|
Definition
|
|
Term
| 44.(610) On F110-GE-129 engines, which oil sumps are nonvented? |
|
Definition
|
|
Term
| 45. (610) If the normal oil supply on an F110-GE-129 engine is interrupted, which bearing receives auxilary oil? |
|
Definition
|
|
Term
| 46.(611) On an F100 engine, the breather pressurizing valve is internally mounted in the |
|
Definition
|
|
Term
| 47. (611) If the red button on an F100-PW-220 engine oil filter pops out and remains extended, the |
|
Definition
| design pressure differential has been exceeded |
|
|
Term
| 48. (611) On an F100 PW-220 engine, the air/oil coolers are mounted on the fan duct and use |
|
Definition
| secondary fan airflow as a coolant. |
|
|
Term
| 49.(611) On an F100- PW-220 engine, what component permits oil to bypass the oil filter during cold weather starts? |
|
Definition
|
|
Term
| 50. (612) What is used to check the oil level in a F108-CF-100 engine? |
|
Definition
| Filler capwith a graduated gauge. |
|
|
Term
| 51. (612) During engine shutdown, what component in the F108-CF-100 engine oil tank prevents high pressure oil in the tan from going into the rest of the oil system? |
|
Definition
|
|
Term
| 52. (612) How many lube sumps are on an F108-CF-100 engine? |
|
Definition
|
|
Term
| 53.(613) How does the Aerospace Fuels Laboratory obtain oil samples for analysis? |
|
Definition
| Automatically from the manufacturer. |
|
|
Term
| 54. (613) The journeyman must be aware of whcih hazardous property of modern jet engine oil? |
|
Definition
|
|
Term
| 55.(613) Which of the following actions concerning open oil containers is correct? |
|
Definition
| Should never be stored or reused. |
|
|
Term
| 56. (614) The primary benefit of identifying an impending faiulre through the oil analysis proram (OAP) is |
|
Definition
|
|
Term
57. (614) For bases that do not have an oil analysis program (OAP) laboratory, who designates the facility to which oil samples are sent? |
|
Definition
|
|
Term
| 58. (614) Who is responsible for ensuring that the oil analysis program (OAP) operates properly? |
|
Definition
|
|
Term
| 59. (614) Before taking an oil sample from a drain, drain enough fluid into a container in order to |
|
Definition
| drain off water and sludge. |
|
|
Term
| 60. (614) Oil sampling intervals shoud not vary by more than |
|
Definition
|
|
Term
| 61. (614) Under what condition would you not receive an oil analysis program (OAP) laboratory sampe report? |
|
Definition
|
|
Term
| 62.(614) Under which of the following situations should a special (red tag) oild sample be taken? |
|
Definition
| Whenever you suspect that something is wrong with an oil system. |
|
|
Term
| 63.(615) What is the term for the process of producing voltage in a conductor when it passes through a magnetic field? |
|
Definition
| Electromagnetic induction. |
|
|
Term
| 64. (615) On a simple AC gnerator, which item takes the current from the slip rings to operate the electrical device? |
|
Definition
|
|
Term
| 65. (615) Which part of a generator acts as an automatic switching device, changing alternating current to direct current? |
|
Definition
|
|
Term
| 66.(616) One function of the constant speed drive (CSD) governor system is to |
|
Definition
| equalize the load between generators operating in parallel. |
|
|
Term
| 67. (616) which component ensures the constant speed drive (CSD) output speed is always at the desired RPM to produce 400 Hz? |
|
Definition
| Frequency and load controller. |
|
|
Term
| 68.(616) What provides the power takeoff shaft that is used to drive the constant speed drive (CSD)? |
|
Definition
|
|
Term
| 69.(617)How are the thermocouples connected in an averaging type of exhaust gas temperature (EGT) circuit? |
|
Definition
|
|
Term
| 70.(617) What is the first item within the main ignition unit to come in contact with input power? |
|
Definition
|
|
Term
| 71. (618) Which unit of an AC ignition system develops 20,000 volts? |
|
Definition
|
|
Term
| 72.(618) The high-energy capacitor-type ignition system does not incllude a |
|
Definition
|
|
Term
| 73.(618) What is the purpose of compositors in an ignition system? |
|
Definition
| Step up the voltage high enough to break down the air gap of the igniter plug. |
|
|
Term
| 74. (618) An F100-PW-100 engine augmentor igniter plug ionizes at minimum rate of how many sparks per second? |
|
Definition
|
|
Term
| 75. (619) When you torque the igniter plug, which tool must be used to prevent damaging the plug? |
|
Definition
|
|
Term
| 76.(620) Which component must be rotated to a predetermined speed for a jet engine starter to be considered effective? |
|
Definition
|
|
Term
| 77.(620) Which of the folwoing statements best describes the air turbine (impingement) starter? |
|
Definition
Has the advantages of less weight and fewer moving parts than other starters. |
|
|
Term
| 78.(620) The two air source requirements for a pneumatic starter to operate properly are sufficient |
|
Definition
|
|
Term
| 80.(621) Which item initially rotates the jet fuel starter (JFS)? |
|
Definition
|
|
Term
| 81.(621) What type of combustion chamber does the jet fuel starter(JFS) use? |
|
Definition
|
|
Term
| 82.(621) What engine section houses the jet fuel starter combustion section? |
|
Definition
|
|
Term
| 83.(622) Which component provides an electrical safety cutoff for the jet fuel starter if the power turbine accelerates to a 110 percent overspeed condition? |
|
Definition
Power turbine overspeed switch. |
|
|
Term
| 84.(622) On the F-15 secondary power system central gearbox (CGB), how are the isolation decouplers extended? |
|
Definition
|
|
Term
| 85.(622) Oil is supplied to the F-15 jet fuel starter (JFS) through the |
|
Definition
|
|
Term
| 86.(622) On an F-15, the power to start the engines begins with the jet fuel starter (JFS) and continues through the central gearbox (CGB) to the |
|
Definition
|
|
Term
| 87. (622) On the F-15 secondary power system, what is used to stop the jet fuel starter (JFS) starting cycle when the aircraft engine has accelerated to starter cutout speed? |
|
Definition
| 50 percent engine cutout switch assembly. |
|
|
Term
| 88.(623) On the F-16 engine start system, the acceleration clutch is part of the |
|
Definition
| accessory drive gearbox (ADG). |
|
|
Term
| 89.(623) When starting the F-16, which compoment drives the jet fuel starter (JFS) geartrain, fuel control, and lube pump? |
|
Definition
|
|
Term
| 90.(624) Discharge air used for the aircraft engine anti-icing to heat-critical areas is taken from which engine area? |
|
Definition
|
|
Term
91. (624) What is one of the first indications of ice formation at aircraft engine inlets? |
|
Definition
|
|
Term
| 92. (625) On an F108 engine, anti-ice air is ducted from which manifold? |
|
Definition
|
|
Term
| 93.(625) On an F108-CF-100 engine anti-ice system, what is the purpose of the air injector on the air regulator? |
|
Definition
| Control air temperature and pressure. |
|
|
Term
| 94. (626) On an F100-PW-220 engine, the digital electronic engine control (DEEC) decision to activate anti-ice air is based on Mach number, altitude,N2 and |
|
Definition
| power lever angle (PLA) schedules. |
|
|
Term
| 95.(627) In what position is the anti-ice valve on an F110-GE-129 engine during engine start? |
|
Definition
|
|
Term
| 96. (627) On an F110-GE-129 engine, compressor bleed air is used for anti-icing, customer bleed, and |
|
Definition
| low-pressure turbine cooling functions. |
|
|
Term
| 97. (628) The inlet duct used on multiengine subsonic aircraft (like the C-5 or C-17) is a fixed geometry duct that has a diameter that progressively |
|
Definition
| increases from the front to the back |
|
|
Term
| 98. (628) The compressor bleed system reduces the probability of compresssor stall in a dual-rotor engine by |
|
Definition
| reducing the amount of air available to the N2 compressor |
|
|
Term
| 99. (629) The cooling air for turbine nozzle vanes comes from |
|
Definition
| the last few stages of the compressor. |
|
|
Term
| 100.(629) Once the cooling airflow has done its job of cooling the turbine section, where does it go? |
|
Definition
Into the gas steam to exit the engine. |
|
|
Term
| 101.(630) On an F108-CF-100 engine, the variable bleed valves bleed air from the |
|
Definition
|
|
Term
| 102.(630) On an F108-CF-100 engine, the direction of the variable bleed valve rotation is controlled by the |
|
Definition
|
|
Term
| 103. (631) Below what percentage of core engine speed are the variable stator vanes (VSV) fully closed (cambered) on an F110-GE-129 engine? |
|
Definition
|
|
Term
| 104.(631) On an F110-GE-129 engine, the main engine control (MEC) schedules the variable vane positions by the |
|
Definition
| fan discharge temperature and core engine speed. |
|
|
Term
| 105. (631) What is the function of the flexible feedback cable on the F110-GE-129 engine variable vane system? |
|
Definition
Transmit a mechanical feedback signal to the main engine control. |
|
|
Term
| 106. (632) On an F100-PW-220 engine, the quad N1 speed sensor incorporates a four-element, variable resistance magnetic sensor that senses |
|
Definition
|
|
Term
| 107.(632) On an F100-PW-220 engine in primary mode, what component schedules (controls) the position of the rear compressor variable vanes (RCVV) ? |
|
Definition
|
|
Term
| 108. (632) On an F100-PW-220 engine, the compressor bleed actuation system controls the opening and closing of the compressor bleed strap during |
|
Definition
|
|
Term
| 109 (633) What are the two types of thrust reversers? |
|
Definition
| Aerodynamic blockage and mechanical blockage. |
|
|
Term
| 110.(633) One type of aerodynamic blockage thrust reverser uses |
|
Definition
| vanes inside the duct to create swirling gases. |
|
|
Term
| 111.(633) In the mechanical blockage-type thrust reverser, when the reverser is not in use, what happens to the doors? |
|
Definition
| They retract around the engine exhaust cone, usually forming the rear section of the engine nacelle. |
|
|
Term
| 112.(634) On which centerlines of the engine exhaust nozzle are the door actuators for the C-141 TF33 engine thrust reverser system located? |
|
Definition
|
|
Term
| 113.(634) Besides maintaining pump discharge pressure during door operation on the C-141 TF33 engine thrust reverser system, the presurrizing valve helps to prevent |
|
Definition
| inadvertent opening of the blockage doors in forward thrust. |
|
|
Term
| 114. (634) What prevents the throttle on the C-141 TF33 engine thrust reverser system from being moved to increase reverse thrust before the doors are in the fully extended position? |
|
Definition
| Mechanical interlock linkage. |
|
|
Term
| 115.(635) On the C-5 TF39 engine thrust reverser system, the individual blocker doors are connected to the inner cowl supporting structure by the |
|
Definition
|
|
Term
| 116.(635) In flight, the use of the C-5 TF39 engine thrust reverser system is restricted to |
|
Definition
|
|
Term
| 117. (635) On the C-5 TF39 engine thrust reverser system, when the pressure switch is actuated to the retract (stowed) position, the signal path to the THRUST REV PRESSURE light is completed, and the light |
|
Definition
|
|
Term
| 118.(636) What is used to open and close flap-type and iris type variable-exhaust nozzle systems? |
|
Definition
| Air pressure for both types |
|
|
Term
| 119.(636) Which system employs a small combustion chamber to ignite the fuel in the augmentor (afterburner) duct? |
|
Definition
|
|
Term
120.(637) The F100 engine augmentor's primary nozzle actuator is driven by cables from the |
|
Definition
| convergent exhaust nozzle control (CENC). |
|
|
Term
| 121. (637) What type of pressure drives the air motor on the F100 engine augmentor convergent exhaust nozzle control (CENC). |
|
Definition
| 13th stage compressor air. |
|
|
Term
| 122. (638) The purpose of the mixing duct in an F110-GE-129 engine augmentor liner is to |
|
Definition
| merge the hot gases of the core stream with the cooler flow of the fan stream. |
|
|
Term
| 123. (638) On an F110-GE-129 engine's augmentor, the augmentor liner is cooled with |
|
Definition
|
|
Term
| 124. (638) On an F110-GE-129 augmentor variable nozzle, uniform movement and geometric stability of the nozzle is provided by |
|
Definition
| mechanical synchronization of the nozzle actuators. |
|
|
