Quiz On Engine
2a651 eoc review test. Â
- 1.
(401) What is the composition of JP-8 fuel?
- A.
Gasoline and kerosene
- B.
Diesel fuel and AV GAS
- C.
Diesel fuel and kerosene
- D.
Gasoline and diesel fuel
Correct Answer
A. Gasoline and kerosene -
- 2.
(401) At room temperature, how many times longer will it take water to settle out of JP-8 than out of gasoline?
- A.
2
- B.
3
- C.
4
- D.
5
Correct Answer
C. 4 -
- 3.
(402) The main fuel control allows the engine to safely accelerate, reducing the possibility of?
- A.
Flameout
- B.
Turbine seizure
- C.
Overtemperature
- D.
Compressor shift
Correct Answer
A. Flameout -
- 4.
(402) The purpose of a fuel/oil cooler in a fuel system is to?
- A.
Heat the fuel and cool the oil
- B.
Cool the fuel and cool the oil
- C.
Heat the fuel and heat the oil
- D.
Cool the fuel and heat the oil
Correct Answer
A. Heat the fuel and cool the oil -
- 5.
(403) What type of fuel control uses items such as thermocouples, relays, amplifiers, and solenoids to help control a jet engine?
- A.
Pneumatic
- B.
Fuel injection
- C.
Hydromechanical
- D.
Electrohydromechanical
Correct Answer
D. Electrohydromechanical -
- 6.
(403) On fuel controls that require setting during an engine trim, calibration and or adjustment screws must be
- A.
Replaced
- B.
Die marked
- C.
Safety sealed and/or lockwired
- D.
Apply a thread locking compound
Correct Answer
C. Safety sealed and/or lockwired -
- 7.
(44) When in primary mode, what controls the operation of the F100-PW-220 engine?
- A.
MEC
- B.
PMG
- C.
DEEC
- D.
TSFC
Correct Answer
C. DEEC -
- 8.
(404) on an F100-PW-220 engine, the MFC is capable of operating in how many modes?
- A.
One
- B.
Two
- C.
Three
- D.
Four
Correct Answer
B. Two -
- 9.
(404) Which F100-PW-220 engine fuel system component controls pressurization of the core engie fuel system?
- A.
N2 sensor
- B.
P&D valve
- C.
Fuel nozzle
- D.
Fan inlet Tt2.5 sensor
Correct Answer
B. P&D valve -
- 10.
(404) Which stage of compressor air drives the augmenter fuel pump on an F100-PW-220 engine?
- A.
7th
- B.
10th
- C.
13th
- D.
14th
Correct Answer
C. 13th -
- 11.
(404) On the F100-PW-220 engine, which component controls the augmentor fuel control?
- A.
Fuel pump
- B.
Fuel pump controller
- C.
Signature elimination probe
- D.
DEEC
Correct Answer
D. DEEC -
- 12.
(404) Core engine fuel flow sequence on an F100-PW-220 engine starts at the main fuel pump and then goes through the?
- A.
Main fuel control, fuel/oil cooler, pressurizing and dump valve, and fuel nozzles
- B.
Fuel/oil cooler, pressurizing and dump vlave, main fuel control, and fuel nozzles
- C.
Augmentor fuel pump, augmentor fuel control, fuel/oil cooler, pressurizing and dump valve, and fuel nozzles
- D.
Augmenter fuel control augmentor fuel pump, fuel/oil cooler, pressurizing and dump valve, and fuel nozzles
Correct Answer
A. Main fuel control, fuel/oil cooler, pressurizing and dump valve, and fuel nozzles -
- 13.
(405) Operational control of the F108-CF-100 engine is achieved by the use of the power lever, fuel shut-off lever, and
- A.
Fuel pump
- B.
Oil/fuel heat exchanger
- C.
Air/fuel heat exchanger
- D.
PMC
Correct Answer
D. PMC -
- 14.
(405) The F108 engine fuel pump contains a low-pressure stage (centrifugal boost stage) and a high pressure
- A.
Gear stage
- B.
Gerotor stage
- C.
Axial boost stage
- D.
Sliding vane stage
Correct Answer
A. Gear stage -
- 15.
(405) on an F180-CF-100 engine, the fuel injectors contain
- A.
Only primary fuel flow passages
- B.
Only secondary fuel flow passages
- C.
Both primary and secondary fuel flow passages
- D.
Primary, secondary, and auxiliary fuel flow passages
Correct Answer
C. Both primary and secondary fuel flow passages -
- 16.
(406) What supplies the AE2100D3 FDEC with power until engine RPM is sufficient for the alternator stator to take control?
- A.
Airplane 28 VDC power supply
- B.
NIU
- C.
MIL-STD-1553B data bus
- D.
Mission computer
Correct Answer
A. Airplane 28 VDC power supply -
- 17.
(406) What component is controlled by the AE2100DC FADEC through the ENGINE START switch for normal engine shutdown or by the fire control handle for emergency shutdown?
- A.
Servo valve
- B.
Fuel check valve
- C.
Electric shutoff valve
- D.
Latching shutoff valve
Correct Answer
D. Latching shutoff valve -
- 18.
(407) On the T56 engine, how many and what type of fuel pumps are contained in the fuel pump and filter assembly?
- A.
3 gear; 1 boost
- B.
2 gear; 2 boost
- C.
2 gear; 1 boost
- D.
1 gear; 2 boost
Correct Answer
C. 2 gear; 1 boost -
- 19.
(407) What T56 engine controls the rotary movement of the fuel control metering valve?
- A.
Temperature
- B.
Engine speed
- C.
Throttle position
- D.
Compressor inlet pressure
Correct Answer
D. Compressor inlet pressure -
- 20.
(407) On the T56 engine, what compares the desired throttle setting from the coordinator with the actual TIT signal from the thermocouples?
- A.
TD valve
- B.
Speed-sensitive control
- C.
TD potentiometers
- D.
TD amplifier
Correct Answer
D. TD amplifier -
- 21.
(407) Which T56 engine component sends the fuel to the fuel manifold?
- A.
TD valve
- B.
Main fuel pump
- C.
TD amplifier
- D.
Fuel control
Correct Answer
A. TD valve -
- 22.
(407) When the null orifice on the T56 engine TD valve is set at zero, how much fuel will the valve bypass?
- A.
0%
- B.
10%
- C.
20%
- D.
30%
Correct Answer
C. 20% -
- 23.
(407) In addition to the visual inspection the T-56 engine fuel nozzle also requires what type of inspection?
- A.
Nondestructive
- B.
Spray pattern
- C.
Pre-torque
- D.
Ultrasonic
Correct Answer
B. Spray pattern -
- 24.
(408) Which type of oil cooler operates on the same principle as a raiator in an automobile?
- A.
Air
- B.
Fuel
- C.
Hydraulic
- D.
Pneumatic
Correct Answer
A. Air -
- 25.
(408) When an engine is not operatin, static preload for a carbon oil seal is provided by
- A.
Air pressure
- B.
Oil pressure
- C.
Spring pressure
- D.
Hydraulic pressure
Correct Answer
C. Spring pressure -
- 26.
(409) The F100-PW-100 engine oil pressure varies with N2 speed, engine inet oil temperature and
- A.
Oil jet pressure
- B.
Fan turbine speed
- C.
Oil nozzle condition
- D.
Number of oil jets used
Correct Answer
C. Oil nozzle condition -
- 27.
(409) What tem is used to indicate that air is being mixed with the oil in the oil pump to create pockets of air?
- A.
Aeration
- B.
Induction
- C.
Convection
- D.
Compression
Correct Answer
A. Aeration -
- 28.
(409) In an engine oil tank, which device separates the air from the oil?
- A.
Aerator
- B.
Deaerator
- C.
Check valve
- D.
Bypass Valve
Correct Answer
B. Deaerator -
- 29.
(409) Which type of oil system stores the oil in a tank fitted to the side of the engine?
- A.
Wet sump
- B.
Dry sump
- C.
Hot tank
- D.
Cold tank
Correct Answer
B. Dry sump -
- 30.
(409) Which type of oil system design place the oil cooler in the pressure subsystem?
- A.
Wet tank
- B.
Dry tank
- C.
Hot tank
- D.
Cold tank
Correct Answer
C. Hot tank -
- 31.
(410) On an F100 engine, the breather pressurizing valve is internally mounted in the
- A.
Oil tank
- B.
Gearbox
- C.
Oil filter
- D.
Oil pump
Correct Answer
B. Gearbox -
- 32.
(410) On an F100-PW-220 engine, the air/oil coolers are mounted on the fan duct and use
- A.
Secondary fan airflow as a coolant
- B.
Secondary fan airflow as an oil heater
- C.
Primary core engine airflow as a coolant
- D.
Primary core engine airflow as an oil heater
Correct Answer
A. Secondary fan airflow as a coolant -
- 33.
(410) On an F100 PW-220 engine, what component permits oil to bypass the oil filter during cold weather starts?
- A.
Oil relief valve
- B.
Filter bypass valve
- C.
Filter poppet valve
- D.
Oil pressure transmitter tap
Correct Answer
B. Filter bypass valve -
- 34.
(411) What is used to check the oil level in a F108-CF-100 engine?
- A.
Sight gauge on the oil tank
- B.
Flight station oil level gauge
- C.
Filler cap with a graduated gauge
- D.
Graduated marking on the outside of the tank
Correct Answer
C. Filler cap with a graduated gauge -
- 35.
(412) Approximately how many GPM does the AE2100D3 PUAD lube and scavenge pump provide at engine PTO?
- A.
3
- B.
5
- C.
7
- D.
9
Correct Answer
B. 5 -
- 36.
(412) What AE2100D3 component drives the PGV lube and scavenge pump?
- A.
Alternator stator
- B.
PGB
- C.
PUAD
- D.
GMAD
Correct Answer
C. PUAD -
- 37.
(413) Which type of oil pump is used on the T56 engine?
- A.
Gear
- B.
Float
- C.
Gerotor
- D.
Centrifugal
Correct Answer
A. Gear -
- 38.
(413) The amount of ram air passing through the oil cooler core is regulated by the
- A.
Thermostat
- B.
Flap actuator
- C.
Size of the core
- D.
Regulating valve
Correct Answer
B. Flap actuator -
- 39.
(413) Bleed air flowing through which component increases airflow through the cooler?
- A.
Flap actuator
- B.
Oil cooler flap
- C.
Augmentation valve
- D.
Augmentation ejector
Correct Answer
C. Augmentation valve -
- 40.
(413) The valve that allows fluid to flow in only one direction is the
- A.
Check
- B.
Relief
- C.
Bypass
- D.
Pressurizing
Correct Answer
A. Check -
- 41.
(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.
Min and center sleeve bearings
- B.
Torquemeter and compressor front bearings
- C.
Front and rear sides of the compressor rear bearing
- D.
Front and rear sides of the compressor front bearing
Correct Answer
B. Torquemeter and compressor front bearings -
- 42.
(413) The power section and RGB oil systems are joined together at the
- A.
Furl heater and trainer
- B.
External scavenge oil filter
- C.
External scavenge oil pump
- D.
Scavenge element of the main pump
Correct Answer
B. External scavenge oil filter -
- 43.
(413) Which RGB component prevents oil in the oil tank from draining into the RGB rear case?
- A.
Shutoff valve
- B.
Oil pump and filter
- C.
Oil pump check valve
- D.
Oil pump bypass valve
Correct Answer
C. Oil pump check valve -
- 44.
(413) How many scavenge oil pumps are located in the RGB?
- A.
1
- B.
2
- C.
3
- D.
4
Correct Answer
B. 2 -
- 45.
(414) The journeyman must be aware of which hazardous property of modern jet engine oil?
- A.
Toxicity
- B.
Viscosity
- C.
Alkalinity
- D.
Corrosiveness
Correct Answer
D. Corrosiveness -
- 46.
(415) The primary benefit of identifying an impending failure through the OAP is
- A.
Improved safety
- B.
Increased component life
- C.
Reduced maintenance cost
- D.
Increased epuipment availability
Correct Answer
A. Improved safety -
- 47.
(415) Who is responsible for ensuring that the OAP operates properly?
- A.
Project monitor
- B.
Logistics commander
- C.
Propulsion flight chief
- D.
Laborator supervisor
Correct Answer
A. Project monitor -
- 48.
(415) What are microscopic metallic particles in the oil system called?
- A.
Wear metals
- B.
Friction metals
- C.
Precious metals
- D.
Transformation metals
Correct Answer
A. Wear metals -
- 49.
(415) Oil sampling intervals should not vary by more than
- A.
5 percent
- B.
10 percent
- C.
15 percent
- D.
20 percent
Correct Answer
B. 10 percent -
- 50.
(415) The SEM/EDX analysis process differs from conventional oil analysis in which major aspect?
- A.
SEM/EDX samples must be sent off-site for analysis.
- B.
SEM/EDX particles must be oil free for analysis to take place.
- C.
SEM/EDX provides results concerning equipment and components condition.
- D.
SEM/EDX samples can only be obtained in an intermediate maintenance shop.
Correct Answer
B. SEM/EDX particles must be oil free for analysis to take place. -
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Jan 20, 2016Quiz Edited by
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Dec 11, 2011Quiz Created by
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