2A651 Ure (All Volumes Mix)

100 Questions | By Jkc135r | Updated: Mar 19, 2022 | Attempts: 79

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1.

What type of oil seal has soft metal as its basic composition and allows a small amount of airflow to prevent oil seepage?
- A.
  
  Silicone
- B.
  
  Carbon
- C.
  
  Synthetic
- D.
  
  Labyrinth
2.

Who monitors flying and maintenance schedules and maintains visibility of fleet health indicators?
- A.
  
  Operations Support Center
- B.
  
  Logistics Support Squadron
- C.
  
  Operations Support Squadron
- D.
  
  Maintenance Operations Center
3.

Which type of oil system stores the oil in a tank fitted to the side of the engine?
- A.
  
  Dry sump
- B.
  
  Wet sump
- C.
  
  Cold tank
- D.
  
  Hot tank
4.

Which section of a jet engine introduces and burns fuel?
- A.
  
  Turbine
- B.
  
  Diffuser
- C.
  
  Compressor
- D.
  
  Combustion
5.

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 poppet valve
- C.
  
  Oil pressure transmitter tap
- D.
  
  Filter assembly bypass valve
6.

How many months must you have in the Air Force before you may attend the Airman Leadership School (ALS)?
- A.
  
  24
- B.
  
  36
- C.
  
  48
- D.
  
  60
7.

What are microscopic metallic particles in the oil system called?
- A.
  
  Wear metals
- B.
  
  Friction metals
- C.
  
  Precious metals
- D.
  
  Transformation metals
8.

Which method of producing thrust does a turboprop engine use?
- A.
  
  Using only the energy expended through the exhaust nozzle to propel the aircraft forward
- B.
  
  Using the same working fluid for propulsive force as that used within the engine
- C.
  
  Accelerating a large mass of air through a small velocity change
- D.
  
  Moving a small quantity of air through a large velocity change
9.

Under what condition would you not receive an OAP laboratory sample report?
- A.
  
  The sample is the first taken after an oil change
- B.
  
  The aircraft is on TDY
- C.
  
  It was a special oil sample
- D.
  
  The results are normal
10.

Air Force occupational safety and health (AFOSH) standards are located within Air Force publication series
- A.
  
  91
- B.
  
  66
- C.
  
  127
- D.
  
  161
11.

Which unit of an AC ignition system develops 20,000 volts?
- A.
  
  Inverter
- B.
  
  Capacitor
- C.
  
  Generator
- D.
  
  Transformer
12.

On an average, what percent of all the energy produced by the fuel is required to maintain the engine operating cycle?
- A.
  
  50
- B.
  
  60
- C.
  
  70
- D.
  
  80
13.

How many independent circuits are within an F100-PW–100 engine ignition system?
- A.
  
  One
- B.
  
  Two
- C.
  
  Three
- D.
  
  Five
14.

Vane-type fuel pumps used in jet engines are similar to
- A.
  
  Sliding-vane air compressors
- B.
  
  Piston pump air compressors
- C.
  
  Roots air compressors
- D.
  
  Turbo-superchargers
15.

What component monitors the AE2100D3 ignition exciters spark rate?
- A.
  
  Full Authority Digital Electronic Control (FADEC)
- B.
  
  Gearbox Mounted Accessory Drive (GMAD)
- C.
  
  Power Unit Accessor Drive (PUAD)
- D.
  
  Nacelle Interface Unit (NIU)
16.

Who is responsible for providing you with training on how to wear, use, and maintain personal protective equipment?
- A.
  
  Safety
- B.
  
  Hospital
- C.
  
  Supervisor
- D.
  
  Environmental
17.

Which type of combustion chamber does the JFS use?
- A.
  
  Can
- B.
  
  Annular
- C.
  
  Can-annular
- D.
  
  Restricted flow
18.

Fuel that accumulates after a failed start is
- A.
  
  Returned to the fuel control by tubes
- B.
  
  Drained overboard by a drain system
- C.
  
  Burned on the next start attempt
- D.
  
  Allowed to evaporate
19.

Discharge air used for aircraft engine anti-icing to heat-critical areas is taken from which engine area?
- A.
  
  Compressor
- B.
  
  Combustion
- C.
  
  Augmentor
- D.
  
  Turbine
20.

Which supply document provides a means for organizations to review all document numbers processed during the day by the Standard Base Supply System (SBSS)?
- A.
  
  Priority Monitor Report (D18)
- B.
  
  Daily Document Register (D04)
- C.
  
  Due-out Validation Listing (M30)
- D.
  
  Repair Cycle Asset Management Listing (D23)
21.

Which characteristic is the most common cause of bearing failure?
- A.
  
  Transient vibration
- B.
  
  Partial loss of lubrication
- C.
  
  Complete loss of lubrication
- D.
  
  Stall condition over temperature
22.

What law does the C-D supersonic inlet use to slow down the airflow?
- A.
  
  Ohm’s law
- B.
  
  Bernoulli’s law
- C.
  
  Newton’s first law
- D.
  
  Newton’s third law
23.

The purpose of the exhaust duct is to
- A.
  
  Swirl exhaust gas-flow
- B.
  
  Equalize exhaust gas-flow
- C.
  
  Straighten exhaust gas-flow
- D.
  
  Modulate exhaust gas-flow
24.

An F110-GE–129 engine contains how many stages of VSV?
- A.
  
  2
- B.
  
  3
- C.
  
  5
- D.
  
  7
25.

The “fir tree” method of attaching turbine blades (buckets) to the turbine rotor disc is preferred because
- A.
  
  Of the temperature differential between the turbine rotor disc and the blades
- B.
  
  It aids in preventing horizontal movement of the blades
- C.
  
  There is more blade tip shake during engine operation
- D.
  
  It aids in preventing axial movement of the bucket