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2a651 Eoc Practice Test All Volumes

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1.  (813) The two types of transducers used to measure vibration are
A.
B.
C.
D.
2.  (621) What type of sump design is the oil system on a GTCP165 engine?
A.
B.
C.
D.
3.  (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.
4.  (606) What is coordinated by the throttle in the controllable pitch range?
A.
B.
C.
D.
5.  (009) What does a completed AFTO Form 350 serve to identify?
A.
B.
C.
D.
6.  (424) Oil is supplied to the F–15 JFS through the
A.
B.
C.
D.
7.  (024) What supports base-level technicians by providing technical assistance and performing any repairs beyond their responsibility/capability?
A.
B.
C.
D.
8.  (002) What type of training is provided to help you learn the knowledge portion of your job?
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.  (001) QA recommends possible corrective actions to which level?
A.
B.
C.
D.
11.  (408) When an engine is not operating, static preload for a carbon oil seal is provided by
A.
B.
C.
D.
12.  (229) For the safety coupling to disconnect the power unit from the RGB, torque must reach between
A.
B.
C.
D.
13.  (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.
14.  (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.
15.  (026) You should record the removal and replacement of engine accessories on which one of the following AFTO Forms?
A.
B.
C.
D.
16.  (604) On the 54H60–91 propeller, if the main filter becomes clogged, which valve opens to assure continued flow?
A.
B.
C.
D.
17.  (807) The N2 tachometer generator is usually driven from the tachometer drive located on the
A.
B.
C.
D.
18.  (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.
19.  (230) What type of bearings support the T56 compressor rotor at the front and rear?
A.
B.
C.
D.
20.  (438) What are the two types of thrust reversers?
A.
B.
C.
D.
21.  (829) Where would you begin your investigation of an engine with a possible oil consumption problem?
A.
B.
C.
D.
22.  (834) Which one is not an inspection phase?
A.
B.
C.
D.
23.  (218) Before inspecting new jet engine bearings, you should
A.
B.
C.
D.
24.  (221) The recommended method of heating inner races of bearings before installing them is
A.
B.
C.
D.
25.  (824) Which testing engine is equipped with a quick engine change (QEC) kit?
A.
B.
C.
D.
26.  (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.
27.  (008) A specialized function of the supply mission is
A.
B.
C.
D.
28.  (604) On the 54H60–91 propeller, which pump is used to feather or unfeather the propeller during static propeller operation?
A.
B.
C.
D.
29.  (030) The vernier scale on a micrometer is used to read measurements in
A.
B.
C.
D.
30.  (015) The second part of a TO number gives the
A.
B.
C.
D.
31.  (008) Base Supply must deliver numerous parts to numerous organizations on a prioritized basis because of what difference in each organization?
A.
B.
C.
D.
32.  (614) What R391 Dowty propeller component translates piston and shaft movement to vary propeller blade angle?
A.
B.
C.
D.
33.  (047) On the personnel maintenance platforms, the purpose of the platform safety lockpins is to
A.
B.
C.
D.
34.  (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.
35.  (831) During an inspection, compressor blade defects that are within limits are
A.
B.
C.
D.
36.  (819) The pressure gauges used for an oil system pressure checks are connected at 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.  (825) The two types of test cells currently used in the Air Force are
A.
B.
C.
D.
39.  (209) The three major sections of all jet engines are compressor, combustion, and
A.
B.
C.
D.
40.  (615) For the R391 Dowty propeller, the feather valve is located inside the
A.
B.
C.
D.
41.  (039) Why should dust caps be installed over tube ends rather than inside them?
A.
B.
C.
D.
42.  (812) Forces acting to create vibration in a jet engine present a highly complex pattern. This is because the main rotor
A.
B.
C.
D.
43.  (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.
44.  (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.
45.  (609) On the 54H60–91 propeller speed bias motor, when the control winding voltage is different from the reference-winding voltage, what results?
A.
B.
C.
D.
46.  (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.
47.  (025) A primary objective of the engine reporting system is to
A.
B.
C.
D.
48.  (816) The carbon seal tester simulates the effects of
A.
B.
C.
D.
49.  (008) Which supply document provides a means for organizations to review all document numbers processed during the day by the SBSS?
A.
B.
C.
D.
50.  (225) In the T56 engine, which RGB component rotates at the same speed as the power unit rotors?
A.
B.
C.
D.
51.  (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.
52.  (418) The slide-type resistor in the EGT circuit is used to
A.
B.
C.
D.
53.  (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.
54.  (248) On an F119–PW–100 engine, what function does the diffuser case serve other than housing the combustor?
A.
B.
C.
D.
55.  (611) On the 54H60–91 propeller, if a nick is found on the metal portion of the blade when performing a blade inspection, which tool is used to measure the depth of the damage?
A.
B.
C.
D.
56.  (605) On the 54H60–91 propeller, what prevents engagement of the stationary and rotating ratchets at blade angles below 25° and above 55°?
A.
B.
C.
D.
57.  (802) The F100-PW–220 engine monitoring system component that acquires fault data from the digital electronic engine control (DEEC) and logs the faults with the time of their occurrence is the
A.
B.
C.
D.
58.  (833) Using the wrong cleaning agent on a jet engine part
A.
B.
C.
D.
59.  (004) Prior to starting any maintenance on the aircraft, what can you do to ensure that it is safe to proceed?
A.
B.
C.
D.
60.  (043) When removing the shipping container lid from the shipping container, how much are the turnlock fasteners turned?
A.
B.
C.
D.
61.  (803) An understanding of the operating principles of engine instruments will help you decide
A.
B.
C.
D.
62.  (409) The F100-PW–100 engine oil pressure varies with N2 speed, engine inlet oil temperature, and
A.
B.
C.
D.
63.  (216) The exhaust duct connects the turbine outlet and the
A.
B.
C.
D.
64.  (610) How many slave channels are contained on the master synchrophaser board in the synchrophaser unit?
A.
B.
C.
D.
65.  (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.
66.  (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.
67.  (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.
68.  (807) The two primary units of the tachometer indicating system are the tachometer generator and tachometer
A.
B.
C.
D.
69.  (030) The longest calibrated movement between the spindle and anvil of an outside micrometer is
A.
B.
C.
D.
70.  (036) When installing a self-taping screw, the hole must be
A.
B.
C.
D.
71.  (247) Where is the Tt2 located on a F119–PW–100 engine?
A.
B.
C.
D.
72.  (239) On the F108 engine, what connects the IGB to the TGB bevel gears?
A.
B.
C.
D.
73.  (208) What directs the gases onto the first-stage turbine wheel blades in a jet engine?
A.
B.
C.
D.
74.  (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.
75.  (819) When checking the turbine section, you do not measure
A.
B.
C.
D.
76.  (211) In a dual-spool compressor, rpm of the N2 compressor are determined by the
A.
B.
C.
D.
77.  (036) The grip length of a bolt should be a few thousandths of an inch shorter than the material it is holding to
A.
B.
C.
D.
78.  (001) Who monitors flying and maintenance schedules, and maintains visibility of fleet health indicators?
A.
B.
C.
D.
79.  (833) Through extensive testing, engine manufacturers determine how long a particular part should last. This is known as the
A.
B.
C.
D.
80.  (601) On the 54H60–91 propeller, which is a function of the pitchlock regulator?
A.
B.
C.
D.
81.  (810) What is used to indicate the amount of thrust a dual-compressor engine is producing?
A.
B.
C.
D.
82.  (827) The noise suppressor at a portable test cell is not equipped with
A.
B.
C.
D.
83.  (416) On a simple AC generator, which item takes the current from the slip rings to operate the electrical device?
A.
B.
C.
D.
84.  (201) “The combination of decreased pressure above an airfoil, and the increased pressure below the airfoil produces lift” is best described by
A.
B.
C.
D.
85.  (036) What type of bolt is used primarily in high-tension applications?
A.
B.
C.
D.
86.  (825) A portable test cell is not equipped with a
A.
B.
C.
D.
87.  (615) For the R391 Dowty propeller, what component(s) relay propeller blade angle to the FADEC units.
A.
B.
C.
D.
88.  (220) Excessive bearing wear can usually be detected by
A.
B.
C.
D.
89.  (821) How many primary air silencers are there on aircraft noise suppressors to help reduce turbine whine?
A.
B.
C.
D.
90.  (839) What is the probable cause of compressor rotor shift?
A.
B.
C.
D.
91.  (039) You can identify the various system lines used to transfer fluids and gases on jet engines by
A.
B.
C.
D.
92.  (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.
93.  (218) When you handle jet engine bearings, you must change cotton gloves frequently because they
A.
B.
C.
D.
94.  (220) Which type of defect appears on bearings as a result of bearing parts striking together?
A.
B.
C.
D.
95.  (829) You can get information such as temperature and barometric pressure from equipment at the test cell site or from
A.
B.
C.
D.
96.  (027) Which is not a Lead the Fleet/Pacer program objective?
A.
B.
C.
D.
97.  (027) What is the purpose of the Lead the Fleet/Pacer programs?
A.
B.
C.
D.
98.  (602) The 54H60–91 propeller governor speeder spring tension positions the pilot valve to maintain what percent rpm in the beta range?
A.
B.
C.
D.
99.  (435) On an F110-GE–129 engine, the MEC schedules the variable vane positions by the
A.
B.
C.
D.
100.  (619) On an GTCP165 engine, the accessory drive section forward housing provides mounts for the components, which include fuel control unit, oil pump assembly, oil filter element, vane-axial fan assembly, and
A.
B.
C.
D.
101.  (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.
102.  (420) On early ignition systems, the high-energy capacitor-type ignition system does not include a
A.
B.
C.
D.
103.  (232) The purpose of the guide vane support is to direct airflow
A.
B.
C.
D.
104.  (017) Which type of technical manual is divided into tasks that cover a particular maintenance action?
A.
B.
C.
D.
105.  (203) Which section of a jet engine keeps the compressor rotating?
A.
B.
C.
D.
106.  (032) To avoid rust, measuring tools should never be stored where the relative humidity exceeds what percentage?
A.
B.
C.
D.
107.  (404) Which stage of compressor air drives the augmenter fuel pump on an F100-PW–220 engine?
A.
B.
C.
D.
108.  (616) On the R391 Dowty propeller, what does the DITU use to monitor itself for malfunctions?
A.
B.
C.
D.
109.  (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.
110.  (836) What inspection is done on aircraft parts that require infrequent inspections?
A.
B.
C.
D.
111.  (023) What drives the creation of a CRP?
A.
B.
C.
D.
112.  (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.
113.  (417) What provides the PTO shaft that is used to drive the CSD?
A.
B.
C.
D.
114.  (830) What information is used as an aid in test facility inspections?
A.
B.
C.
D.
115.  (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.
116.  (250) What is the nozzle module mounted to on the F119–PW–100 engine?
A.
B.
C.
D.
117.  (429) On an F108 engine, anti-ice air is ducted from which manifold?
A.
B.
C.
D.
118.  (621) On an GTCP165 engine oil system, air that leaks past various oil seals exits through the
A.
B.
C.
D.
119.  (803) Most engine monitoring gauges and instruments require some type of
A.
B.
C.
D.
120.  (601) On the 54H60–91 propeller, which pitchlock component mechanically holds the stationary and rotating pitchlock ratchets apart during reversing and unfeathering operations?
A.
B.
C.
D.
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