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2a651 Eoc Practice Test All Volumes

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1.  (610) To reduce the noise and vibration levels, synchrophasing mode of governing maintains all the propellers at
A.
B.
C.
D.
2.  (413) Which type of oil pump is used on the T56 engine?
A.
B.
C.
D.
3.  (615) Which component controls the R391 Dowty propeller blade angle by directing engine oil flow through the beta tube to the cylinder and piston?
A.
B.
C.
D.
4.  (442) On an F110-GE–129 augmentor variable nozzle, uniform movement and geometric stability of the nozzle is provided by
A.
B.
C.
D.
5.  (614) What R391 Dowty propeller component translates piston and shaft movement to vary propeller blade angle?
A.
B.
C.
D.
6.  (218) When you handle jet engine bearings, you must change cotton gloves frequently because they
A.
B.
C.
D.
7.  (803) An understanding of the operating principles of engine instruments will help you decide
A.
B.
C.
D.
8.  (408) Which type of oil cooler operates on the same principle as a radiator in an automobile?
A.
B.
C.
D.
9.  (224) On the T56 turboprop engine, what is the overall reduction ratio of the RGB’s main reduction gear train?
A.
B.
C.
D.
10.  (615) For the R391 Dowty propeller, the feather valve is located inside the
A.
B.
C.
D.
11.  (022) Within the ET&D program, to whom do flightline personnel transfer collected data for analysis?
A.
B.
C.
D.
12.  (840) If the turbine nozzles are burned out uniformly around the whole annulus from an overtemperature condition, this is known as a
A.
B.
C.
D.
13.  (603) The condition lever GND STOP position is only effective on the ground because the circuits made in this position are completed through what switches?
A.
B.
C.
D.
14.  (231) In the T56 engine, turbine rotor torque is transferred to the compressor rotor by the
A.
B.
C.
D.
15.  (829) To prevent damage to the load cells when you are transferring an engine to the test stand,
A.
B.
C.
D.
16.  (439) The F117-PW–100 fan thrust reverser door upper right and left sensors send a signal to which channel or channels of the EEC?
A.
B.
C.
D.
17.  (841) Which characteristic is the most common cause of bearing failure?
A.
B.
C.
D.
18.  (246) How many stages are in the inlet fan module of the F119–PW–100 engine?
A.
B.
C.
D.
19.  (820) Which F–16 operational check allows you to start the jet fuel starter (JFS) without advancing the throttle to idle or supplying fuel to the aircraft engine?
A.
B.
C.
D.
20.  (220) Excessive bearing wear can usually be detected by
A.
B.
C.
D.
21.  (424) Which component provides an electrical safety cutoff for the JFS if the power turbine accelerates to a 110 percent overspeed condition?
A.
B.
C.
D.
22.  (833) To borescope the high-pressure turbine (HPT) rotor blades, rotate the rear compressor by using the core engine rotating device on the
A.
B.
C.
D.
23.  (235) Primary airflow in the F108 engine is through all of the following components except the
A.
B.
C.
D.
24.  (418) The slide-type resistor in the EGT circuit is used to
A.
B.
C.
D.
25.  (247) How many hollow struts/inlet guide vanes are contained in the inlet fan case of the F119 engine?
A.
B.
C.
D.
26.  (621) What type of sump design is the oil system on a GTCP165 engine?
A.
B.
C.
D.
27.  (027) Which is not a Lead the Fleet/Pacer program objective?
A.
B.
C.
D.
28.  (824) Which testing engine is equipped with a quick engine change (QEC) kit?
A.
B.
C.
D.
29.  (041) The shroud-type cover consists of a buildup of how many layers of wrap?
A.
B.
C.
D.
30.  (805) The fuel system component of a jet engine that operates by using a water wheel concept is the
A.
B.
C.
D.
31.  (603) What component in the T56 engine coordinator provides reference signals to the electronic TD amplifier that are proportional to the desired TIT?
A.
B.
C.
D.
32.  (609) Where is the pickup portion of the pulse generator located?
A.
B.
C.
D.
33.  (020) Which AFTO IMT 22 recommendation would you submit which, if not corrected, could cause personnel injury or damage to equipment or property?
A.
B.
C.
D.
34.  (021) What are the two classifications of failures in RCM?
A.
B.
C.
D.
35.  (433) Once the cooling airflow has done its job of cooling the turbine section, where does it go?
A.
B.
C.
D.
36.  (410) On an F100 engine, the breather pressurizing valve is internally mounted in the
A.
B.
C.
D.
37.  (039) Copper tubing is not used on jet engines because it
A.
B.
C.
D.
38.  (810) What is used to indicate the amount of thrust a dual-compressor engine is producing?
A.
B.
C.
D.
39.  (201) Which type of duct would decrease the velocity and increase the pressure of a gas as it passes through?
A.
B.
C.
D.
40.  (426) How is the AE2100D3 starter control valve actuated?
A.
B.
C.
D.
41.  (804) A typical jet engine exhaust gas temperature (EGT) indicating system contains thermocouples, leads, an indicator, and
A.
B.
C.
D.
42.  (403) On fuel controls that require setting during an engine trim, calibration and/or adjustment screws must be
A.
B.
C.
D.
43.  (020) Who makes sure the AFTO IMT 22 is valid and warrants submission?
A.
B.
C.
D.
44.  (601) On the 54H60–91 propeller, which component is used in place of a shim plate on the No. 1 blade?
A.
B.
C.
D.
45.  (008) A specialized function of the supply mission is
A.
B.
C.
D.
46.  (808) The exhaust nozzle position indicating system found on engines with afterburners is important because it
A.
B.
C.
D.
47.  (416) On a simple AC generator, which item takes the current from the slip rings to operate the electrical device?
A.
B.
C.
D.
48.  (834) During what inspection phase are operational checks made according to the technical order (TO)?
A.
B.
C.
D.
49.  (411) What is used to check the oil level in a F108-CF–100 engine?
A.
B.
C.
D.
50.  (235) The F108 engine can be broken down into how many individual modules?
A.
B.
C.
D.
51.  (030) The vernier scale on a micrometer is used to read measurements in
A.
B.
C.
D.
52.  (819) When checking the turbine section, you do not measure
A.
B.
C.
D.
53.  (416) What is the term for the process of producing voltage in a conductor when it passes through a magnetic field?
A.
B.
C.
D.
54.  (423) What engine section houses the JFS combustion section?
A.
B.
C.
D.
55.  (617) When used for ground operation, the SGT engine can be installed on
A.
B.
C.
D.
56.  (613) 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.
B.
C.
D.
57.  (827) On the portable test cell, the swivel pads at the bottom of the leveling jacks on the engine thrust trailer provide for all of the following except
A.
B.
C.
D.
58.  (422) The OSG on the cartridge-pneumatic starter consists of the
A.
B.
C.
D.
59.  (413) How many scavenge oil pumps are located in the RGB?
A.
B.
C.
D.
60.  (012) Which item is one that a storage time period must be assigned to ensure that it will perform satisfactorily over a specified period of time?
A.
B.
C.
D.
61.  (407) When the null orifice on the T56 engine TD valve is set at zero, how much fuel will the valve bypass?
A.
B.
C.
D.
62.  (420) The T56 engine speed-sensitive control lets electrical current flow to the fuel and ignition system at
A.
B.
C.
D.
63.  (610) Which is a function of normal governing?
A.
B.
C.
D.
64.  (401) What is the composition of JP–8 fuel?
A.
B.
C.
D.
65.  (210) The two forces that air is subjected to after it is drawn into the guide vanes of a centrifugal compressor are
A.
B.
C.
D.
66.  (238) On the F108 engine, the LPT shaft assembly connects the fan shaft with the
A.
B.
C.
D.
67.  (208) What directs the gases onto the first-stage turbine wheel blades in a jet engine?
A.
B.
C.
D.
68.  (839) What is the probable cause of compressor rotor shift?
A.
B.
C.
D.
69.  (247) Where is the Tt2 located on a F119–PW–100 engine?
A.
B.
C.
D.
70.  (601) On the 54H60–91 propeller, which dome assembly part allows the rotating cam to turn while the stationary cam remains in a fixed position?
A.
B.
C.
D.
71.  (605) On the 54H60–91 propeller, when pressure builds to between 240 and 280 psi, which valve is unseated and allows the stop levers to retract?
A.
B.
C.
D.
72.  (233) The AE2100D3 engine mount is divided into how many major structures?
A.
B.
C.
D.
73.  (036) How is a screw length measured?
A.
B.
C.
D.
74.  (425) When starting the F–16, which component drives the JFS geartrain, fuel control, and lube pump?
A.
B.
C.
D.
75.  (819) The pressure gauges used for an oil system pressure checks are connected at the
A.
B.
C.
D.
76.  (021) In RCM, which preventative maintenance task is a scheduled inspection to detect a potential failure condition?
A.
B.
C.
D.
77.  (410) On an F100-PW–220 engine, the air/oil coolers are mounted on the fan duct and use
A.
B.
C.
D.
78.  (438) In the mechanical blockage-type thrust reverser, when the reverser is not in use, what happens to the doors?
A.
B.
C.
D.
79.  (827) The noise suppressor at a portable test cell is not equipped with
A.
B.
C.
D.
80.  (018) What category of TCTO is issued to correct unsafe conditions that can result in a fatality or serious injury to personnel?
A.
B.
C.
D.
81.  (005) FOD is normally caused by
A.
B.
C.
D.
82.  (610) How many slave channels are contained on the master synchrophaser board in the synchrophaser unit?
A.
B.
C.
D.
83.  (416) Which part of a generator acts as an automatic switching device, changing alternating current to direct current?
A.
B.
C.
D.
84.  (029) The length of a torque extension is determined by the distance between the center of the square drive and the center of the
A.
B.
C.
D.
85.  (228) Which components comprise the torquemeter assembly?
A.
B.
C.
D.
86.  (607) On the 54H60–91 propeller, during an underspeed condition, what moves the pilot valve?
A.
B.
C.
D.
87.  (612) On the 54H60–91 propeller, when 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.
B.
C.
D.
88.  (601) Which 54H60–91 propeller subassembly transmits engine torque to the propeller blades?
A.
B.
C.
D.
89.  (218) How many different types of loads can be imposed on a jet engine bearing?
A.
B.
C.
D.
90.  (004) To avoid the engine exhaust blast, what is the minimum distance in feet to the rear of the aircraft?
A.
B.
C.
D.
91.  (213) The excess airflow that is not burned in the combustion section is used to
A.
B.
C.
D.
92.  (413) The valve that allows fluid to flow in only one direction is the
A.
B.
C.
D.
93.  (611) Which type of special inspection can be used to find minute cracks on a propeller blade?
A.
B.
C.
D.
94.  (817) Which piece of test equipment is used to troubleshoot a jet fuel starter (JFS) problem on an F–16 aircraft?
A.
B.
C.
D.
95.  (025) The key to making the CEMS work is
A.
B.
C.
D.
96.  (836) What inspection is done on aircraft parts that require infrequent inspections?
A.
B.
C.
D.
97.  (210) A constructional feature of the centrifugal compressor is that the impeller
A.
B.
C.
D.
98.  (812) During vibration analysis, frequency is usually measured in
A.
B.
C.
D.
99.  (214) What is placed in front of the rotating blades in an engine turbine section?
A.
B.
C.
D.
100.  (405) The F108 engine fuel pump contains a low-pressure stage (centrifugal boost stage) and a high-pressure
A.
B.
C.
D.
101.  (203) Which section of a jet engine keeps the compressor rotating?
A.
B.
C.
D.
102.  (047) On the personnel maintenance platforms, the purpose of the platform safety lockpins is to
A.
B.
C.
D.
103.  (424) On the F–15 secondary power system, what is used to stop the JFS starting cycle when the aircraft engine has accelerated to starter cutout speed?
A.
B.
C.
D.
104.  (604) On the 54H60–91 propeller, the output of what pump is sufficient to supply hydraulic pressure for normal propeller operation?
A.
B.
C.
D.
105.  (818) The term trim means to adjust the engine systems for optimum performance per the limits in the technical order (TO). There are two methods used to trim an engine. They are
A.
B.
C.
D.
106.  (047) Which maintenance platform can be adjusted from 3 to 7 feet?
A.
B.
C.
D.
107.  (009) What does a completed AFTO Form 350 serve to identify?
A.
B.
C.
D.
108.  (237) On the F108 engine, the purpose of the HPT nozzle assembly is to accelerate the energy from the combustion gases to drive the
A.
B.
C.
D.
109.  (621) On an GTCP165 engine oil system, air that leaks past various oil seals exits through the
A.
B.
C.
D.
110.  (230) The stationary (stator) vane blades on the T56 compressor are used to
A.
B.
C.
D.
111.  (832) Defects (such as cracks) that appear on the combustion chamber are aggravated by
A.
B.
C.
D.
112.  (829) If an engine stalls or surges during a test cell run, you should investigate the
A.
B.
C.
D.
113.  (814) The filter selector switch on the vibration analyzer is used to
A.
B.
C.
D.
114.  (224) The major sections of a turboprop engine are the power unit, torquemeter assembly, and
A.
B.
C.
D.
115.  (036) Which nuts should never be used in areas where the temperature exceeds 250°F?
A.
B.
C.
D.
116.  (003) Occupational health is regulated by Air Force series
A.
B.
C.
D.
117.  (005) Who has overall responsibility for the FOD program?
A.
B.
C.
D.
118.  (004) How far does a propeller’s axis of rotation extend?
A.
B.
C.
D.
119.  (010) If you are TDY and IMDS and SBSS are not available, what form would you use to order an engine part?
A.
B.
C.
D.
120.  (017) Which type of additional data is not provided in interactive electronic technical manuals (IETMS)?
A.
B.
C.
D.
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