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2a651 Eoc Practice Test All Volumes

120 Questions  I  By AerospacePropulsion
2A651 EOC Practice Test All Volumes
2A651 EOC Practice Test

  
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1.  (426) How is the AE2100D3 starter control valve actuated?
A.
B.
C.
D.
2.  (612) 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.
B.
C.
D.
3.  (830) Responsibility for the proper preventive maintenance of a test cell facility rests with the
A.
B.
C.
D.
4.  (233) What type of compressor rotor assembly is used on the AE2100D3 engine?
A.
B.
C.
D.
5.  (436) On the AE2100D3 engine, what type of actuator is the CVG actuator?
A.
B.
C.
D.
6.  (025) The key to making the CEMS work is
A.
B.
C.
D.
7.  (019) How can you tell when the text or a picture in a TO has been changed?
A.
B.
C.
D.
8.  (235) Primary airflow in the F108 engine is through all of the following components except the
A.
B.
C.
D.
9.  (028) What would you use to hold your tools when you cannot locate your toolbox within arm’s reach?
A.
B.
C.
D.
10.  (211) Stationary vanes positioned between rotor discs in a compressor are used to
A.
B.
C.
D.
11.  (207) Which engine component meters fuel for combustion?
A.
B.
C.
D.
12.  (038) When lockwiring, how many twists per inch are required to produce the proper stiffness?
A.
B.
C.
D.
13.  (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.
14.  (026) To document information concerning the status of engine TCTO, use AFTO Form
A.
B.
C.
D.
15.  (407) In addition to the visual inspection the T–56 engine fuel nozzle also requires what type of inspection?
A.
B.
C.
D.
16.  (036) Which nuts should never be used in areas where the temperature exceeds 250°F?
A.
B.
C.
D.
17.  (839) A cold compressor stall that occurs at low revolutions per minute (RPM) and is accompanied by a slight overtemperature is called
A.
B.
C.
D.
18.  (241) On an F100–PW–220 engine, the No. 1 bearing assembly is located in the
A.
B.
C.
D.
19.  (618) On an GTCP165 engine, air is compressed by the single-stage centrifugal compressor assembly, and then discharged into
A.
B.
C.
D.
20.  (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.
21.  (220) Which type of defect appears on bearings as a result of bearing parts striking together?
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.  (840) Turbine blade fatigue failure does not result from
A.
B.
C.
D.
24.  (408) When an engine is not operating, static preload for a carbon oil seal is provided by
A.
B.
C.
D.
25.  (022) The primary goal of the ET&D program is to prevent or limit damage to turbine engines by
A.
B.
C.
D.
26.  (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.
27.  (621) What type of sump design is the oil system on a GTCP165 engine?
A.
B.
C.
D.
28.  (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.
29.  (224) On the T56 turboprop engine, how many stages of reduction are in the RGB’s main reduction gear train?
A.
B.
C.
D.
30.  (404) On the F100-PW–220 engine, which component controls the augmentor fuel control?
A.
B.
C.
D.
31.  (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.
32.  (841) Which characteristic is the most common cause of bearing failure?
A.
B.
C.
D.
33.  (040) Operating procedures and practices that, if not strictly observed, may result in damage to equipment are shown in the maintenance manuals in the form of
A.
B.
C.
D.
34.  (044) How many pins secure the adapters to the shipping container support?
A.
B.
C.
D.
35.  (815) What procedure is used to ensure the fan and low pressure turbine are correctly balanced?
A.
B.
C.
D.
36.  (440) What component heats augmentor fuel to provide better vaporization and combustion?
A.
B.
C.
D.
37.  (839) Compressor section failure from a chain reaction due to blade-to-blade and blade-to-vane interference is known as
A.
B.
C.
D.
38.  (022) Which technicians provide maintenance activity data to the ET&D program?
A.
B.
C.
D.
39.  (245) On an F100–PW–220 engine, the gearbox module is driven by the rear compressor through
A.
B.
C.
D.
40.  (229) The purpose of the T56 safety coupling is to
A.
B.
C.
D.
41.  (440) What are the two main types of augmentor (afterburner) ignition systems?
A.
B.
C.
D.
42.  (025) For how many categories of reporting does the CEMS establish and maintain records?
A.
B.
C.
D.
43.  (801) To become an expert troubleshooter, you must
A.
B.
C.
D.
44.  (015) The second part of a TO number gives the
A.
B.
C.
D.
45.  (021) What are the two classifications of failures in RCM?
A.
B.
C.
D.
46.  (838) Which inspection is conducted by maintenance personnel after an occurrence of a specific or unusual condition?
A.
B.
C.
D.
47.  (826) Engines are mounted in the fixed test cell on a thrust stand or are suspended
A.
B.
C.
D.
48.  (608) As the 54H60–91 propeller feathers, the output of which pump decreases (drops off)?
A.
B.
C.
D.
49.  (610) Mechanical governing provides the foundation for what other propeller governing modes?
A.
B.
C.
D.
50.  (009) What does a completed AFTO Form 350 serve to identify?
A.
B.
C.
D.
51.  (810) The pressures used in the operation of the engine pressure ratio (EPR) system are the
A.
B.
C.
D.
52.  (017) What section of the IPB contains an explanation of the coding used in the IPB?
A.
B.
C.
D.
53.  (601) On the 54H60–91 propeller, what function is a task of the low pitch stop assembly?
A.
B.
C.
D.
54.  (409) Which type of oil system design places the oil cooler in the pressure subsystem?
A.
B.
C.
D.
55.  (435) On an F110-GE–129 engine, the MEC schedules the variable vane positions by the
A.
B.
C.
D.
56.  (213) Fuel that accumulates after a failed start is
A.
B.
C.
D.
57.  (610) To reduce the noise and vibration levels, synchrophasing mode of governing maintains all the propellers at
A.
B.
C.
D.
58.  (040) When you receive an engine in your shop, you should check the applicable forms and then
A.
B.
C.
D.
59.  (829) To prevent damage to the load cells when you are transferring an engine to the test stand,
A.
B.
C.
D.
60.  (023) Who maintains accountability of CIRF assets and reports their status?
A.
B.
C.
D.
61.  (234) What routes oil and fuel through the T700 engine AGB?
A.
B.
C.
D.
62.  (250) What is the nozzle module mounted to on the F119–PW–100 engine?
A.
B.
C.
D.
63.  (218) How many different types of loads can be imposed on a jet engine bearing?
A.
B.
C.
D.
64.  (829) Where would you begin your investigation of an engine with a possible oil consumption problem?
A.
B.
C.
D.
65.  (611) When performing a loose blade inspection on the 54H60–91 propeller, fore-and-aft play should not exceed what limit?
A.
B.
C.
D.
66.  (220) Which type of defect appears on bearings as a result of small particles of foreign material becoming lodged between the rollers?
A.
B.
C.
D.
67.  (604) On the 54H60–91 propeller, which pump is used to feather or unfeather the propeller during static propeller operation?
A.
B.
C.
D.
68.  (249) Which bearing is located in the LPT of the F119–PW–100 engine?
A.
B.
C.
D.
69.  (043) When removing the shipping container lid from the shipping container, how much are the turnlock fasteners turned?
A.
B.
C.
D.
70.  (240) On which module of an F100–PW–220 engine is the stator generator mounted?
A.
B.
C.
D.
71.  (417) What provides the PTO shaft that is used to drive the CSD?
A.
B.
C.
D.
72.  (610) Which is a function of normal governing?
A.
B.
C.
D.
73.  (212) Which facet of engine design helps prevent igniter plug fouling?
A.
B.
C.
D.
74.  (233) What AE2100D3 nacelle access door contains a fire access door?
A.
B.
C.
D.
75.  (805) The engine fuel-flow indicating system of most jet powered aircraft contains a fuel-flow
A.
B.
C.
D.
76.  (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.
77.  (820) Prior to starting the engine when doing an anti-ice valve operational check on an F–16C/D, place the anti-ice engine switch to
A.
B.
C.
D.
78.  (604) 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.
B.
C.
D.
79.  (024) Depot maintenance support base-level technicians by
A.
B.
C.
D.
80.  (401) At room temperature, how many times longer will it take water to settle out of JP–8 than out of gasoline?
A.
B.
C.
D.
81.  (019) Which TO covers information concerning the Air Force TO system?
A.
B.
C.
D.
82.  (046) What is used to help remove moisture from an area where engines are stored?
A.
B.
C.
D.
83.  (009) Which provides a block-by-block explanation of how to document the AFTO Form 350 tag?
A.
B.
C.
D.
84.  (841) Bearing failure from moisture, lack of protective oils, improper handling, or improper storage could cause
A.
B.
C.
D.
85.  (829) You can get information such as temperature and barometric pressure from equipment at the test cell site or from
A.
B.
C.
D.
86.  (226) What is not a propeller brake positions?
A.
B.
C.
D.
87.  (609) Besides maintaining the optimum blade phase angle relationship between all propellers, what else does synchrophasing do?
A.
B.
C.
D.
88.  (410) On an F100-PW–220 engine, what component permits oil to bypass the oil filter during cold weather starts?
A.
B.
C.
D.
89.  (225) In the T56 engine, which RGB component rotates at the same speed as the power unit rotors?
A.
B.
C.
D.
90.  (036) What type of washer is used to prevent corrosion of dissimilar metals?
A.
B.
C.
D.
91.  (833) Through extensive testing, engine manufacturers determine how long a particular part should last. This is known as the
A.
B.
C.
D.
92.  (434) On an F108-CF–100 engine, the direction of the variable bleed valve rotation is controlled by the
A.
B.
C.
D.
93.  (404) Core engine fuel flow sequence on an F100-PW–220 engine starts at the main fuel pump and then goes through the
A.
B.
C.
D.
94.  (804) A typical jet engine exhaust gas temperature (EGT) indicating system contains thermocouples, leads, an indicator, and
A.
B.
C.
D.
95.  (048) What information is found in Part I of an AFTO Form 244?
A.
B.
C.
D.
96.  (621) On an GTCP165 engine oil system, air that leaks past various oil seals exits through the
A.
B.
C.
D.
97.  (231) In the T56 engine, turbine rotor torque is transferred to the compressor rotor by the
A.
B.
C.
D.
98.  (834) Which one is not an inspection phase?
A.
B.
C.
D.
99.  (427) Which T56 engine component functions as an on-off control for the air supply that is sent to the starter?
A.
B.
C.
D.
100.  (610) If the master propeller fails during synchrophaser governing, the slave propellers follow the master to
A.
B.
C.
D.
101.  (213) Swirl-type fuel nozzles usually are used to provide what type of flame speed?
A.
B.
C.
D.
102.  (229) For the safety coupling to disconnect the power unit from the RGB, torque must reach between
A.
B.
C.
D.
103.  (831) During an inspection, compressor blade defects that are within limits are
A.
B.
C.
D.
104.  (441) The F100 engine augmentor’s primary nozzle actuator is driven by cables from the
A.
B.
C.
D.
105.  (805) The fuel system component of a jet engine that operates by using a water wheel concept is the
A.
B.
C.
D.
106.  (608) On the 54H60–91 propeller, what is the minimum psi required to release the feather latches and allow the piston to move forward?
A.
B.
C.
D.
107.  (032) To avoid rust, measuring tools should never be stored where the relative humidity exceeds what percentage?
A.
B.
C.
D.
108.  (607) On the 54H60–91 propeller, during beta range operation, what moves the pilot valve?
A.
B.
C.
D.
109.  (214) Three types of turbine and vane assemblies used in jet engines are impulse, reaction, and
A.
B.
C.
D.
110.  (832) On a disassembled engine, a visual inspection of the combustion chamber is preferred over a borescope inspection because
A.
B.
C.
D.
111.  (002) You may attend the ALS after having how many months in the Air Force?
A.
B.
C.
D.
112.  (605) On the 54H60–91 propeller, the function of the low pitch stop is to prevent the
A.
B.
C.
D.
113.  (826) The vertical baffles in the exhaust stack of the fixed test cell are designed to remove
A.
B.
C.
D.
114.  (243) On an F100–PW–220 engine, the front compressor drive turbine shaft is connected to the front compressor rotor by
A.
B.
C.
D.
115.  (824) When testing a TF34 engine at test cell, which test is performed to ensure all operating limits and schedules from idle to maximum power are within limits?
A.
B.
C.
D.
116.  (437) The T56 engine component that allows 14th-stage air to close the bleed air valves is the
A.
B.
C.
D.
117.  (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.
118.  (201) “An unbalanced force on a body produces or tends to produce an acceleration in the direction of the force and that the acceleration, if any, is directly proportional to the force and inversely proportional to the mass of the body.” This statement is
A.
B.
C.
D.
119.  (421) What component monitors the AE2100D3 ignition exciters spark rate?
A.
B.
C.
D.
120.  (035) Light is transmitted to the tip of a borescope by
A.
B.
C.
D.
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