2a651 Eoc Practice Test All Volumes

120 Questions  I  By AerospacePropulsion
Online Test Quizzes & Trivia
2A651 EOC Practice Test

   or Create Online Test
Changes are done, please start the quiz.


Question Excerpt

Removing question excerpt is a premium feature

Upgrade and get a lot more done!
1.  (245) On an F100–PW–220 engine, the gearbox module is driven by the rear compressor through
A.
B.
C.
D.
2.  (002) You may attend the ALS after having how many months in the Air Force?
A.
B.
C.
D.
3.  (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.
4.  (801) All of the options listed below are proper troubleshooting practices except
A.
B.
C.
D.
5.  (829) If an engine stalls or surges during a test cell run, you should investigate the
A.
B.
C.
D.
6.  (607) On the 54H60–91 propeller, during beta range operation, the rotation of which cam moves the mechanical linkage to center the governor pilot valve?
A.
B.
C.
D.
7.  (204) Which method of producing thrust does a turboprop engine use?
A.
B.
C.
D.
8.  (618) On an GTCP165 engine, air is compressed by the single-stage centrifugal compressor assembly, and then discharged into
A.
B.
C.
D.
9.  (215) Why is the “fir tree” method of attaching turbine blades (buckets) to the turbine rotor disc preferred?
A.
B.
C.
D.
10.  (205) The heat content per pound of kerosene is how many Btu’s?
A.
B.
C.
D.
11.  (427) On the T56 engine, which switch energizes the starter control valve to the OPEN position?
A.
B.
C.
D.
12.  (615) For the R391 Dowty propeller, what component(s) relay propeller blade angle to the FADEC units.
A.
B.
C.
D.
13.  (231) In the T56 engine, turbine rotor torque is transferred to the compressor rotor by the
A.
B.
C.
D.
14.  (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.
15.  (031) What feature is common to all dial indicators?
A.
B.
C.
D.
16.  (601) On the 54H60–91 propeller, which is a function of the pitchlock regulator?
A.
B.
C.
D.
17.  (047) Which maintenance platform can be adjusted from 3 to 7 feet?
A.
B.
C.
D.
18.  (608) On the 54H60–91 propeller, after the NTS system actuator rod positions the mechanical linkage in the valve housing when a negative torque condition occurs, what component is shifted?
A.
B.
C.
D.
19.  (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.
20.  (039) Why should dust caps be installed over tube ends rather than inside them?
A.
B.
C.
D.
21.  (621) What type of sump design is the oil system on a GTCP165 engine?
A.
B.
C.
D.
22.  (423) Which item initially rotates the JFS?
A.
B.
C.
D.
23.  (612) On the 54H60–91 propeller, to avoid being crushed after removing the dome shell during dome piston seal replacement, you should keep your fingers away from the
A.
B.
C.
D.
24.  (823) After running an engine in augmentation in the hush house, the augmentor tube is cooled by running the engine at idle for a period of
A.
B.
C.
D.
25.  (233) What AE2100D3 nacelle access door contains a fire access door?
A.
B.
C.
D.
26.  (608) On the 54H60–91 propeller, which component is the primary electrical ground for energizing the feather override holding coil?
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.  (001) Who monitors flying and maintenance schedules, and maintains visibility of fleet health indicators?
A.
B.
C.
D.
29.  (604) On the 54H60–91 propeller, if the main filter becomes clogged, which valve opens to assure continued flow?
A.
B.
C.
D.
30.  (236) What percentage of the total engine thrust does the secondary airflow on the F108 engine produce?
A.
B.
C.
D.
31.  (601) On the 54H60–91 propeller, what function is a task of the low pitch stop assembly?
A.
B.
C.
D.
32.  (829) You can get information such as temperature and barometric pressure from equipment at the test cell site or from
A.
B.
C.
D.
33.  (213) What is the most common type of fuel nozzle system?
A.
B.
C.
D.
34.  (409) Which type of oil system design places the oil cooler in the pressure subsystem?
A.
B.
C.
D.
35.  (826) The vertical baffles in the exhaust stack of the fixed test cell are designed to remove
A.
B.
C.
D.
36.  (610) Which is a function of normal governing?
A.
B.
C.
D.
37.  (402) The purpose of a fuel/oil cooler in a fuel system is to
A.
B.
C.
D.
38.  (036) How is a screw length measured?
A.
B.
C.
D.
39.  (032) What should you use for cleaning measuring tools?
A.
B.
C.
D.
40.  (228) Which components comprise the torquemeter assembly?
A.
B.
C.
D.
41.  (433) Once the cooling airflow has done its job of cooling the turbine section, where does it go?
A.
B.
C.
D.
42.  (441) The F100 engine augmentor’s primary nozzle actuator is driven by cables from the
A.
B.
C.
D.
43.  (618) On an GTCP165 engine, turbine discharge temperature is controlled by the
A.
B.
C.
D.
44.  (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.
45.  (828) Which engine area should be checked for foreign object damage (FOD) prior to operation on the test cell facility?
A.
B.
C.
D.
46.  (424) Oil is supplied to the F–15 JFS through the
A.
B.
C.
D.
47.  (232) What are used to retain the turbine buckets in the first-stage wheel of the T56–A–15 engine?
A.
B.
C.
D.
48.  (408) When an engine is not operating, static preload for a carbon oil seal is provided by
A.
B.
C.
D.
49.  (605) On the 54H60–91 propeller, between the blade angles of 25° and 55°, what will keep the rotating and stationary ratchets disengaged?
A.
B.
C.
D.
50.  (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.
51.  (613) To calculate the required weight change when you use the 192A spectrum analyzer, you will need to plot the data on a
A.
B.
C.
D.
52.  (807) The tachometer indicator is
A.
B.
C.
D.
53.  (035) What are the type(s) of view(s) available with the rigid borescope?
A.
B.
C.
D.
54.  (436) On the AE2100D3 engine, what type of actuator is the CVG actuator?
A.
B.
C.
D.
55.  (602) On the 54H60–91 propeller, which valve, contained in the valve housing, controls the flow of hydraulic fluid to and from the dome assembly?
A.
B.
C.
D.
56.  (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.
57.  (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.
58.  (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.
59.  (415) Oil sampling intervals should not vary by more than
A.
B.
C.
D.
60.  (438) In the mechanical blockage-type thrust reverser, when the reverser is not in use, what happens to the doors?
A.
B.
C.
D.
61.  (437) The T56 engine component that allows 14th-stage air to close the bleed air valves is the
A.
B.
C.
D.
62.  (411) What is used to check the oil level in a F108-CF–100 engine?
A.
B.
C.
D.
63.  (610) To reduce the noise and vibration levels, synchrophasing mode of governing maintains all the propellers at
A.
B.
C.
D.
64.  (621) On an GTCP165 engine oil system, air that leaks past various oil seals exits through the
A.
B.
C.
D.
65.  (838) Which inspection is conducted by maintenance personnel after an occurrence of a specific or unusual condition?
A.
B.
C.
D.
66.  (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.
67.  (420) The T56 engine speed-sensitive control lets electrical current flow to the fuel and ignition system at
A.
B.
C.
D.
68.  (218) How many different types of loads can be imposed on a jet engine bearing?
A.
B.
C.
D.
69.  (045) Engines inactive for over 180 days must have what accomplished?
A.
B.
C.
D.
70.  (818) You can find written instructions for safe flight line vehicle operations in
A.
B.
C.
D.
71.  (021) In RCM, which preventative maintenance task is a scheduled inspection to detect a potential failure condition?
A.
B.
C.
D.
72.  (216) The purpose of the exhaust duct is to
A.
B.
C.
D.
73.  (017) What section of the IPB contains an explanation of the coding used in the IPB?
A.
B.
C.
D.
74.  (218) Before inspecting new jet engine bearings, you should
A.
B.
C.
D.
75.  (246) How many stages are in the inlet fan module of the F119–PW–100 engine?
A.
B.
C.
D.
76.  (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.
77.  (219) The bearing removal tools that are most commonly used include
A.
B.
C.
D.
78.  (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.
79.  (209) The three major sections of all jet engines are compressor, combustion, and
A.
B.
C.
D.
80.  (225) In the T56 engine, which RGB component rotates at the same speed as the power unit rotors?
A.
B.
C.
D.
81.  (607) On the 54H60–91 propeller, during beta range operation, what moves the pilot valve?
A.
B.
C.
D.
82.  (211) In a dual-spool compressor, rpm of the N2 compressor are determined by the
A.
B.
C.
D.
83.  (004) How far does a propeller’s axis of rotation extend?
A.
B.
C.
D.
84.  (214) What is placed in front of the rotating blades in an engine turbine section?
A.
B.
C.
D.
85.  (609) The master synchrophaser board located in the synchrophaser unit contains a master channel and a slave channel. These channels are used by which propellers?
A.
B.
C.
D.
86.  (047) On the personnel maintenance platforms, the purpose of the platform safety lockpins is to
A.
B.
C.
D.
87.  (002) What type of training is provided to help you learn the knowledge portion of your job?
A.
B.
C.
D.
88.  (039) For a straight piece of tubing to remain serviceable, a dent must be less than what percentage of the tubing diameter?
A.
B.
C.
D.
89.  (031) Where is the contact point on a dial indicator located?
A.
B.
C.
D.
90.  (024) Depot level support includes CLSS crews, depot maintenance support, maintenance assistance, and
A.
B.
C.
D.
91.  (206) What is the sea-level atmospheric pressure at “standard day” conditions?
A.
B.
C.
D.
92.  (827) The portable test cell is not equipped with a
A.
B.
C.
D.
93.  (034) How many range settings does the Fluke 8025A multimeter have?
A.
B.
C.
D.
94.  (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.
95.  (811) The test cell IC temperature indicator displays temperatures in degrees Fahrenheit, with a range of
A.
B.
C.
D.
96.  (008) From what perspective does the RSS manage supply?
A.
B.
C.
D.
97.  (812) What type of vibration causes unnecessary engine removals and unwarranted repairs?
A.
B.
C.
D.
98.  (840) Turbine blade fatigue failure does not result from
A.
B.
C.
D.
99.  (035) The type of borescope that uses miniature TV camera images is a
A.
B.
C.
D.
100.  (417) What provides the PTO shaft that is used to drive the CSD?
A.
B.
C.
D.
101.  (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.
102.  (607) On the 54H60–91 propeller, during an underspeed condition, what moves the pilot valve?
A.
B.
C.
D.
103.  (023) What drives the creation of a CRP?
A.
B.
C.
D.
104.  (024) Depot maintenance support base-level technicians by
A.
B.
C.
D.
105.  (234) The T700 engine consists of what four modules?
A.
B.
C.
D.
106.  (249) What drives the IFM in the F119–PW–100 engine?
A.
B.
C.
D.
107.  (019) How can you tell when the text or a picture in a TO has been changed?
A.
B.
C.
D.
108.  (001) Which squadrons form a maintenance group?
A.
B.
C.
D.
109.  (605) The purpose of the 54H60–91 propeller pitchlock assembly is to prevent
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.  (603) On the 54H60–91 propeller, when the throttle is moved to the GROUND IDLE position, what degree setting does the coordinator pointer indicate on the protractor?
A.
B.
C.
D.
112.  (827) The noise suppressor at a portable test cell is not equipped with
A.
B.
C.
D.
113.  (226) The propeller brake is in which position when the aircraft is on the ground and the engine is stopped?
A.
B.
C.
D.
114.  (008) A specialized function of the supply mission is
A.
B.
C.
D.
115.  (419) Which unit of an AC ignition system develops 20,000 volts?
A.
B.
C.
D.
116.  (207) Which engine component meters fuel for combustion?
A.
B.
C.
D.
117.  (003) Which Air Force instruction defines quality maintenance and requires maintenance personnel to display integrity and comply with all written guidance?
A.
B.
C.
D.
118.  (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.
119.  (232) The purpose of the guide vane support is to direct airflow
A.
B.
C.
D.
120.  (839) What section of a compressor blade is most likely to fail?
A.
B.
C.
D.
Back to top

Removing ad is a premium feature

Upgrade and get a lot more done!
Take Another Quiz
We have sent an email with your new password.