2A672 EOC Pretest
By taking this test, you will prepare yourself prior to your 2A672 EOC.
- 1.
What A/M32A -86D generator sets circuit provides initial rotation of the engine for starting the unit?
- A.
Idle/run
- B.
Generator build-up
- C.
Start
- D.
Overspeed
Correct Answer
C. Start -
- 2.
The oppostion of a capacitor to changes in voltage in an AC circuit is capactive
- A.
Resistance
- B.
Reactance
- C.
Resonance
- D.
Polarity
Correct Answer
B. Reactance -
- 3.
An inductor stores energy in the form of a(n)
- A.
Magnetic field
- B.
Power surge
- C.
Voltage drop
- D.
Open circuit
Correct Answer
A. Magnetic field -
- 4.
Hot, expanding gases from the GTC turbine section's combustor can are accelerated and directed into the nozzle ring by the
- A.
Turbine wheel
- B.
Combustor cap
- C.
Torus assembly
- D.
Exhaust flange
Correct Answer
C. Torus assembly -
- 5.
The spring tension on the GTC's governor is set for loaded governor speed _________ percent.
Correct Answer
100% - 6.
If an air conditioneris short cycling, you should check the
- A.
Receiver outlet valve
- B.
Setting of the LPCO
- C.
Heat load
- D.
Refrigerant, and drain off part of it
Correct Answer
A. Receiver outlet valve -
- 7.
The main purpose of the Hydraulic Test Stands supply system is
- A.
Supply hydraulic fluid to the aircraft
- B.
Store hydraulic fluid until needed by the test stand
- C.
Fill the lines and components with hydraulic fluid
- D.
Supply a continuos flow of fluid uner pressure to the high pressure pump
Correct Answer
B. Store hydraulic fluid until needed by the test stand -
- 8.
Pressure output of the MJ-1B's hand pump varies from 0 to _____ psi.
Correct Answer
1500 - 9.
On a GTC you will see grayish white smoke coming out of the exhaust box if the ________ are defective.
- A.
Interstage seals
- B.
Turbine engine oil leaks
- C.
Inducers
- D.
Stationary divergent shaped blades
Correct Answer
B. Turbine engine oil leaks -
- 10.
The bomblift's ______ aids in starting the unit or when the engine is running rough due to vapor locks.
- A.
Preheat solenoid
- B.
Electric fuel pump switch
- C.
Ammeter
- D.
Starter solenoid
Correct Answer
B. Electric fuel pump switch -
- 11.
True power is monitored by using a
- A.
Voltmeter
- B.
Ohmmeter
- C.
Watt meter
- D.
Multimeter
Correct Answer
C. Watt meter -
- 12.
In AC operation, the capacitor fully discharges at the same time the voltage drops to
- A.
63%
- B.
37%
- C.
Zero
- D.
One TC
Correct Answer
C. Zero -
- 13.
A fully charged capacitor requires _________ RC times constant.
- A.
3
- B.
5
- C.
7
- D.
10
Correct Answer
B. 5 -
- 14.
The DC voltage supplied to the A/M32A-86D generator set's exciter field is controlled by the __________ circuit.
- A.
Generator output
- B.
Load
- C.
Automatic field control
- D.
Manual field control
Correct Answer
C. Automatic field control -
- 15.
In a schematic, if the arrow in a bipolar transistor is pointing away from the base, we have a ____________ transistor.
- A.
PNP
- B.
NPN
- C.
N-type
- D.
P-type
Correct Answer
B. NPN -
- 16.
When a magnetic field induces voltage into a coiled conductor that opposes the original current, the process is referred to as
- A.
Self-induction
- B.
Resistance
- C.
Pulsation
- D.
Mutual inductance
Correct Answer
A. Self-induction -
- 17.
Excess oil is drawn from the gear case in the lubrication system of the -60A generator by the
- A.
Oil jet assembly
- B.
Main oil pump
- C.
Oil cooler
- D.
Scavenge pump
Correct Answer
D. Scavenge pump -
- 18.
The amount of current required to gate the SCR is called
- A.
Avalanche breakdown point
- B.
Barrier voltage
- C.
120 ripples
- D.
Forward breakover voltage
Correct Answer
D. Forward breakover voltage -
- 19.
The ES establishes a maximum allowable one-time repair expenditure limit for each piece of equipment they manage costing over
- A.
$1500
- B.
$2000
- C.
$2500
- D.
$3000
Correct Answer
C. $2500 -
- 20.
Air + moisture vapor + quantity of air + temperature difference =
- A.
Heat
- B.
Heat load
- C.
CFM
- D.
PPM
Correct Answer
B. Heat load -
- 21.
Varying the emitter-base current through a transistor varies the
- A.
Forward breakover voltage
- B.
Barrier voltage
- C.
Voltage to the load
- D.
Amplification
Correct Answer
C. Voltage to the load -
- 22.
Procedures and standards for authenticating, controlling, procuring, and producing Air Force publications is the responsibilty of the
- A.
Commanders
- B.
Director of Information Management
- C.
MAJCOM
- D.
Chief of Staff, USAF
Correct Answer
B. Director of Information Management -
- 23.
The movement of the bomblift's cradle assmbly is controlled by the ___________ system.
- A.
Lift
- B.
Power steering
- C.
Hydrostatic drive
- D.
Hand pump
Correct Answer
A. Lift -
- 24.
When appealing the findings of a report of survey, the appeal must be submitted to the approving authority within _______ days of the date the individual is notified of the assessed liability.
- A.
3
- B.
10
- C.
15
- D.
30
Correct Answer
D. 30 -
- 25.
Among the most common MPTO's is TO ________, which explains the TO system and methods to improve TO's.
- A.
00-20-3
- B.
00-5-1
- C.
00-20-7
- D.
00-5-2
Correct Answer
B. 00-5-1 -
- 26.
To determine if a deficiency meets criteria for the deficiency reporting system, use
- A.
TO 00-20-54
- B.
TO 00-35D-54
- C.
TO 00-25-172
- D.
AFI 91-202
Correct Answer
B. TO 00-35D-54 -
- 27.
Only when you are performing resistive and reactive load tests at the same time is a(n) __________________ used.
- A.
Voltmeter
- B.
Ohmmeter
- C.
Multimeter
- D.
Power factor meter
Correct Answer
D. Power factor meter -
- 28.
One of the most significant things that can be done to reduce the heat load in an air conditioner is to
- A.
Recycle the conditioned air
- B.
Increase the pressure
- C.
Recharge the system
- D.
Cool the air
Correct Answer
A. Recycle the conditioned air -
- 29.
The flow of positive charges against the flow of electrons in semiconductor is called the
- A.
Valence
- B.
Covalence
- C.
Hole current
- D.
Electron voltage
Correct Answer
C. Hole current -
- 30.
Items that are not repairable at this station, are condemned and require turn-in, are covered under TO
- A.
00-20-7
- B.
00-5-1
- C.
00-20-14
- D.
00-20-3
Correct Answer
D. 00-20-3 -
- 31.
On a SGNSC after the engine has warmed up the oil pressure gauge should read
- A.
25-38 psi
- B.
10-21 psi
- C.
43-57 psi
- D.
13-19 psi
Correct Answer
C. 43-57 psi -
- 32.
If a generator is overhauled, it is automatically considered to be _______________ years old at the time the overhaul is complete.
- A.
2
- B.
3
- C.
4
- D.
5
Correct Answer
A. 2 -
- 33.
Use the aircraft servicing load bank circuit to test the performance of 28 VDC genertors under simulated load.
- A.
True
- B.
False
Correct Answer
A. True -
- 34.
Heat transfers from hot to cold, and the transfer continues until
- A.
The formerly hot substance freezes.
- B.
The formerly cold substance melts.
- C.
Both substances are at the same temperature.
- D.
Once substance is 10 degrees warmer than the other.
Correct Answer
C. Both substances are at the same temperature. -
- 35.
Capacitors are used as a blocking device to block DC or in a filter to pass or reject a specific frequency.
- A.
True
- B.
False
Correct Answer
A. True -
- 36.
In order to make a silicon crystal conduct, material is added to it which contains _____________ valence electrons.
- A.
1 or 3
- B.
2 or 4
- C.
3 or 5
- D.
2 or 6
Correct Answer
C. 3 or 5 -
- 37.
The boiling process in an air conditioner can only be controlled and regulated by controlling the _______________ applied to the refrigerant
- A.
Heat
- B.
Recycling
- C.
Pressure
- D.
Water
Correct Answer
C. Pressure -
- 38.
Informational publications which normally are "how to" documents are
- A.
AFPAMs.
- B.
AFINDs.
- C.
AFIs.
- D.
AFSs.
Correct Answer
A. AFPAMs. -
- 39.
As air flows across the coils of an air conditioner's ________________, heat transfers from the refrigerant to the ambient air and is exhausted out the top of the unit.
- A.
Oil seperator
- B.
Condensor assembly
- C.
Temperature controller
- D.
Compressor
Correct Answer
B. Condensor assembly -
- 40.
Apparent power is measure in
- A.
KWAs
- B.
KWs
- C.
KVAs
- D.
KVs
Correct Answer
C. KVAs -
- 41.
The bomblift's power steering pump is driven by the
- A.
Coupling off the transmission pump
- B.
Shaft driven off the engine
- C.
Flexible coupling off the engine
- D.
Belt driven off the system pump
Correct Answer
A. Coupling off the transmission pump -
- 42.
On the EPU-6/E how does the operator know if CB1 is turned on
- A.
Audible alarm
- B.
Frequency meter
- C.
Hourmeter
- D.
Indicator light
Correct Answer
D. Indicator light -
- 43.
In the -60A generator set's bleed air system, the opening time is controlled by the load control valve's _______________ section.
- A.
Diaphragm
- B.
Load
- C.
Rate
- D.
Mechanical linkage
Correct Answer
C. Rate -
- 44.
If a GTC is experiencing hot starts, the 1st component you would check is the ____________ valve.
- A.
Plenum drain
- B.
Load control
- C.
Filter drain
- D.
Switcher
Correct Answer
A. Plenum drain -
- 45.
In an air conditioner, the oil safety switch, low pressure cutout switch, and the high pressure cutout switch operate by shutting of the
- A.
Blower assembly
- B.
Fan cycle switch
- C.
Fuel heater relay
- D.
Compressor clutch
Correct Answer
D. Compressor clutch -
- 46.
The temperature of a gas changes because of ______ heat.
- A.
Latent
- B.
Sensible
- C.
Convection
- D.
Super
Correct Answer
D. Super -
- 47.
The GTC is protected from damage by the
- A.
Impellers
- B.
Inducers
- C.
Interstage ducts
- D.
Interstage seals
Correct Answer
D. Interstage seals -
- 48.
In a series-parallel cicuits, no matter what the individual branch currents are, the total current of all parallel branches always equals the current flow in the ________________________ of the circuit.
- A.
Parallel part
- B.
Resistors
- C.
Series part
- D.
Combined parts
Correct Answer
C. Series part -
- 49.
The heat used to change a solid to a liquid is referred to as
- A.
Super heat
- B.
Latent heat of vaporization
- C.
Sensible heat
- D.
Latent heat of fusion
Correct Answer
D. Latent heat of fusion -
- 50.
The silicon atom's valance band contains ____________ electrons and is classified as an intrinsic semiconductor.
- A.
4
- B.
6
- C.
8
- D.
12
Correct Answer
A. 4 -
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Current Version
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Feb 19, 2013Quiz Edited by
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Jun 11, 2012Quiz Created by
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