2a651 Eoc Practice Test All Volumes

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2A651 EOC Practice Test

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1.  (235) The F108 engine can be broken down into how many individual modules?
A.
B.
C.
D.
2.  (835) A basic post-flight inspection (BPO) is done
A.
B.
C.
D.
3.  (839) What section of a compressor blade is most likely to fail?
A.
B.
C.
D.
4.  (035) What are the type(s) of view(s) available with the rigid borescope?
A.
B.
C.
D.
5.  (409) Which type of oil system stores the oil in a tank fitted to the side of the engine?
A.
B.
C.
D.
6.  (204) Which method of producing thrust does a turboprop engine use?
A.
B.
C.
D.
7.  (812) What type of vibration causes unnecessary engine removals and unwarranted repairs?
A.
B.
C.
D.
8.  (610) During normal governing operation, what stabilizes the propeller governor during rapid throttle movements?
A.
B.
C.
D.
9.  (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.
10.  (841) Which characteristic is the most common cause of bearing failure?
A.
B.
C.
D.
11.  (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.
12.  (801) All of the options listed below are proper troubleshooting practices except
A.
B.
C.
D.
13.  (005) FOD is normally caused by
A.
B.
C.
D.
14.  (810) The pressures used in the operation of the engine pressure ratio (EPR) system are the
A.
B.
C.
D.
15.  (003) Occupational health is regulated by Air Force series
A.
B.
C.
D.
16.  (047) Which maintenance platform can be adjusted from 3 to 7 feet?
A.
B.
C.
D.
17.  (830) What information is used as an aid in test facility inspections?
A.
B.
C.
D.
18.  (043) To determine whether an engine stored in a shipping container is serviceable or repairable, look on the
A.
B.
C.
D.
19.  (806) The oil pressure indicator receives an electrical signal from the
A.
B.
C.
D.
20.  (603) What switch, located in the control quadrant, activates the 54H–60–91 propeller governor speed bias servo assembly as the throttle is moved into the flight idle gate?
A.
B.
C.
D.
21.  (812) During vibration analysis, frequency is usually measured in
A.
B.
C.
D.
22.  (404) On the F100-PW–220 engine, which component controls the augmentor fuel control?
A.
B.
C.
D.
23.  (039) Copper tubing is not used on jet engines because it
A.
B.
C.
D.
24.  (612) The term “No. 320 grit” refers to which feature of sandpaper?
A.
B.
C.
D.
25.  (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.
26.  (604) On the 54H60–91 propeller, when the backup valve is opened, the hydraulic pressure routed to the governor pilot valve is used for which operation?
A.
B.
C.
D.
27.  (023) When a CIRF ships a replacement asset to a deployed unit, who is responsible for ensuring all appropriate documentation is completed?
A.
B.
C.
D.
28.  (616) 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.
B.
C.
D.
29.  (030) You adjust a micrometer by turning the
A.
B.
C.
D.
30.  (239) On the F108 engine, what connects the IGB to the TGB bevel gears?
A.
B.
C.
D.
31.  (430) On an F110-GE–129 engine, the anti-icing system prevents detrimental formation and accumulation of ice on front frame struts, forward centerbody, and
A.
B.
C.
D.
32.  (614) What R391 Dowty propeller assembly part provides an aerodynamic faring over the aft section of the hub?
A.
B.
C.
D.
33.  (428) Discharge air used for aircraft engine anti-icing to heat-critical areas is taken from which engine area?
A.
B.
C.
D.
34.  (421) What is the output of the AE2100D3 alternator stator?
A.
B.
C.
D.
35.  (621) What type of sump design is the oil system on a GTCP165 engine?
A.
B.
C.
D.
36.  (413) In the power unit oil system, the dual-port oil jet mounted on the front side of the compressor air inlet housing is used to lubricate the
A.
B.
C.
D.
37.  (409) Which type of oil system design places the oil cooler in the pressure subsystem?
A.
B.
C.
D.
38.  (612) 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.
B.
C.
D.
39.  (216) The exhaust duct connects the turbine outlet and the
A.
B.
C.
D.
40.  (407) On the T56 engine, how many and what type of fuel pumps are contained in the fuel pump and filter assembly?
A.
B.
C.
D.
41.  (620) On GTCP165 engine shutdown, what valve closes to ensure fuel-flow is terminated?
A.
B.
C.
D.
42.  (019) Which TO covers information concerning the Air Force TO system?
A.
B.
C.
D.
43.  (608) On the 54H60–91 propeller, when feathering the propeller, what acts on the mechanical linkage to open the feather actuating valve?
A.
B.
C.
D.
44.  (212) Which facet of engine design helps prevent igniter plug fouling?
A.
B.
C.
D.
45.  (002) You may attend the ALS after having how many months in the Air Force?
A.
B.
C.
D.
46.  (611) When performing the blade tracking inspection on the 54H60–91 propeller, the calculated difference in blade tracks should not exceed what limit?
A.
B.
C.
D.
47.  (609) Which board in the synchrophaser unit receives input signals that are compared together, modified, and used to control the speed bias motors?
A.
B.
C.
D.
48.  (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.
49.  (827) The noise suppressor at a portable test cell is not equipped with
A.
B.
C.
D.
50.  (409) What term is used to indicate that air is being mixed with the oil in the oil pump to create pockets of air?
A.
B.
C.
D.
51.  (025) A primary objective of the engine reporting system is to
A.
B.
C.
D.
52.  (621) On a GTCP165 engine, which component shuts the engine down if the oil pressure drops below the safe minimum operating limit?
A.
B.
C.
D.
53.  (834) During what inspection phase are operational checks made according to the technical order (TO)?
A.
B.
C.
D.
54.  (213) Swirl-type fuel nozzles usually are used to provide what type of flame speed?
A.
B.
C.
D.
55.  (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.
56.  (230) What type of bearings support the T56 compressor rotor at the front and rear?
A.
B.
C.
D.
57.  (824) Which testing engine is equipped with a quick engine change (QEC) kit?
A.
B.
C.
D.
58.  (412) What AE2100D3 component drives the PGB lube and scavenge pump?
A.
B.
C.
D.
59.  (241) On an F100–PW–220 engine, the No. 1 bearing assembly is located in the
A.
B.
C.
D.
60.  (610) On the 54H60–91 propeller, in the mechanical governing mode, what causes the pilot valve to move and set propeller speed?
A.
B.
C.
D.
61.  (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.
62.  (007) A common method for disposing of hazardous wasted is
A.
B.
C.
D.
63.  (027) How many years ahead should participating units accelerate engines, modules, and accessories?
A.
B.
C.
D.
64.  (439) On the F117-PW–100 engine, what component controls hydraulic power for actuating both the fan and core thrust reversers?
A.
B.
C.
D.
65.  (415) The SEM/EDX analysis process differs from conventional oil analysis in which major aspect?
A.
B.
C.
D.
66.  (437) The T56 engine component that allows 14th-stage air to close the bleed air valves is the
A.
B.
C.
D.
67.  (235) Primary airflow in the F108 engine is through all of the following components except the
A.
B.
C.
D.
68.  (808) The exhaust nozzle position indicating system found on engines with afterburners is important because it
A.
B.
C.
D.
69.  (407) In addition to the visual inspection the T–56 engine fuel nozzle also requires what type of inspection?
A.
B.
C.
D.
70.  (021) What are the two classifications of failures in RCM?
A.
B.
C.
D.
71.  (032) To avoid rust, measuring tools should never be stored where the relative humidity exceeds what percentage?
A.
B.
C.
D.
72.  (201) Which type of duct would decrease the velocity and increase the pressure of a gas as it passes through?
A.
B.
C.
D.
73.  (830) Responsibility for the proper preventive maintenance of a test cell facility rests with the
A.
B.
C.
D.
74.  (839) What is the probable cause of compressor rotor shift?
A.
B.
C.
D.
75.  (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.
76.  (035) When operating a borescope, what part of the borescope illuminates the interior of the area you are inspecting?
A.
B.
C.
D.
77.  (424) On an F–15, the power to start the engines begins with the JFS and continues through the CGB to the
A.
B.
C.
D.
78.  (834) Which one is not an inspection phase?
A.
B.
C.
D.
79.  (604) On the 54H60–91 propeller, which pump is used to feather or unfeather the propeller during static propeller operation?
A.
B.
C.
D.
80.  (407) What T56 engine controls the rotary movement of the fuel control metering valve?
A.
B.
C.
D.
81.  (434) On an F108-CF–100 engine, the variable bleed valves bleed air from the
A.
B.
C.
D.
82.  (818) You can find written instructions for safe flight line vehicle operations in
A.
B.
C.
D.
83.  (004) To avoid the engine exhaust blast, what is the minimum distance in feet to the rear of the aircraft?
A.
B.
C.
D.
84.  (234) What routes oil and fuel through the T700 engine AGB?
A.
B.
C.
D.
85.  (811) The direct oil pressure gauge on a test cell is connected to an engine oil pressure line. This configuration will indicate oil pressure without using wiring, indicator, or
A.
B.
C.
D.
86.  (225) What is the total gear reduction ratio of the RGB?
A.
B.
C.
D.
87.  (228) The torquemeter exciter wheels are in phase when
A.
B.
C.
D.
88.  (022) The primary goal of the ET&D program is to prevent or limit damage to turbine engines by
A.
B.
C.
D.
89.  (605) On the 54H60–91 propeller, what forces the stop levers on the low pitch stop to move outward?
A.
B.
C.
D.
90.  (014) Which type of items must be reflected on the CA/CRL?
A.
B.
C.
D.
91.  (828) Which of these is not considered a cause of foreign object damage (FOD)?
A.
B.
C.
D.
92.  (008) A specialized function of the supply mission is
A.
B.
C.
D.
93.  (413) Which RGB component prevents oil in the oil tank from draining into the RGB rear case?
A.
B.
C.
D.
94.  (610) Mechanical governing provides the foundation for what other propeller governing modes?
A.
B.
C.
D.
95.  (026) You should record the removal and replacement of engine accessories on which one of the following AFTO Forms?
A.
B.
C.
D.
96.  (617) The pneumatic air bled from the small gas turbine engine cannot be used to
A.
B.
C.
D.
97.  (404) On an F100-PW–220 engine, the MFC is capable of operating in how many modes?
A.
B.
C.
D.
98.  (402) The purpose of a fuel/oil cooler in a fuel system is to
A.
B.
C.
D.
99.  (814) The filter selector switch on the vibration analyzer is used to
A.
B.
C.
D.
100.  (015) The first part of a TO number identifies the
A.
B.
C.
D.
101.  (823) During an inspection of the hush house you are not required to check the
A.
B.
C.
D.
102.  (420) On early ignition systems, the high-energy capacitor-type ignition system does not include a
A.
B.
C.
D.
103.  (833) Through extensive testing, engine manufacturers determine how long a particular part should last. This is known as the
A.
B.
C.
D.
104.  (825) The two types of test cells currently used in the Air Force are
A.
B.
C.
D.
105.  (026) To document information concerning the status of engine TCTO, use AFTO Form
A.
B.
C.
D.
106.  (622) During normal GTCP165 engine shutdown, what circuit trips to stop the engine?
A.
B.
C.
D.
107.  (819) The pressure gauges used for an oil system pressure checks are connected at the
A.
B.
C.
D.
108.  (028) What would you use to hold your tools when you cannot locate your toolbox within arm’s reach?
A.
B.
C.
D.
109.  (810) What is used to indicate the amount of thrust a dual-compressor engine is producing?
A.
B.
C.
D.
110.  (622) On a GTCP165 engine, the speed switch control does not control the engine during
A.
B.
C.
D.
111.  (441) The F100 engine augmentor’s primary nozzle actuator is driven by cables from the
A.
B.
C.
D.
112.  (807) The N2 tachometer generator is usually driven from the tachometer drive located on the
A.
B.
C.
D.
113.  (218) When you handle jet engine bearings, you must change cotton gloves frequently because they
A.
B.
C.
D.
114.  (421) What component monitors the AE2100D3 ignition exciters spark rate?
A.
B.
C.
D.
115.  (806) Two units that work together to indicate that the oil system is operating correctly are the oil pressure
A.
B.
C.
D.
116.  (436) On the AE2100D3 engine, what type of actuator is the CVG actuator?
A.
B.
C.
D.
117.  (242) When blending fourth stage compressor blades on an F100–PW–220 engine, a maximum of how many blends are allowed on any single edge?
A.
B.
C.
D.
118.  (403) What type of fuel control uses items such as thermocouples, relays, amplifiers, and solenoids to help control a jet engine?
A.
B.
C.
D.
119.  (833) Using the wrong cleaning agent on a jet engine part
A.
B.
C.
D.
120.  (423) The JFS is basically a
A.
B.
C.
D.
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