2A672 EOC Pretest

Submit

3. On the A/M32A -86D generator set, the fault indicating lights remain illuminated until the

Problem is corrected

Output contactor opens

Reset switch is pressed

Generator output is disconnected from the load

4. An increase in the charge of an electrostatic field causes a corresponding ____________ in the electrostatic force.

Increase

Decrease

Repulsion

Lighter mass

5. The GTC's _____________ provides high volume, low pressure air for servicing and starting the aircraft.

Load control valve

Bleed air system

Electrical system

Actuator diaphragm

6. When we magnetize any material, the amount of magnetism that remains after the magnetizing force is removed is called

Resident magnetism

Residual magnetism

One henry

One coulomb

7. Heat transfers from hot to cold, and the transfer continues until

The formerly hot substance freezes.

The formerly cold substance melts.

Both substances are at the same temperature.

Once substance is 10 degrees warmer than the other.

8. If a GTC is experiencing hot starts, the 1st component you would check is the ____________ valve.

Plenum drain

Load control

Filter drain

Switcher

9. Excess oil is drawn from the gear case in the lubrication system of the -60A generator by the

Oil jet assembly

Main oil pump

Oil cooler

Scavenge pump

10. In the bomblift's hydrostatic drive system, changing the position of the ____________ controls the direction of the fluid to the transmission motor and the direction in which the bomblift moves.

Accelerator pedal

Directional control valve

Hydraulic control valve

Outboard control valve

11. What A/M32A -86D generator sets circuit provides initial rotation of the engine for starting the unit?

Idle/run

Generator build-up

Start

Overspeed

12. Only when you are performing resistive and reactive load tests at the same time is a(n) __________________ used.

Voltmeter

Ohmmeter

Multimeter

Power factor meter

13. As the actuator diaphragm in te GTC bleed air system moves, the __________________ valve starts to open.

Butterfly

Metering

Switcher

Air load

14. The length of time it is considered economically feasible to repair a piece of equipment is determined by the

Item manger and equipment specialist

Uniform repair/replacement board

Supervisor

Installation commander

15. An inductor stores energy in the form of a(n)

Magnetic field

Power surge

Voltage drop

Open circuit

16. If you notice that the exhaust gas temperature is excessively high during the operation of a -60A generator set, the probable cause is the

Fuel atomizer

Torus assembly

Pneumatic thermostat

Air oil seals

17. The hydraulic test stand incorporates a heat exchanger to coll and maintain the hydraulic fluid temperature below 165 degrees Fahrenheit.

True

False

18. Use the aircraft servicing load bank circuit to test the performance of 28 VDC genertors under simulated load.

True

False

19. If the south pole of one magnet is placed near the north pole of another magnet, the magnets are

Demagnetized

Attracted to each other

Repelled by each other

Aligned north to south

20. The GTC is protected from damage by the

Impellers

Inducers

Interstage ducts

Interstage seals

21. If you don't know how the air conditioning system is supposed to operate, it is next to impossible to fix it.

True

False

22. The boiling process in an air conditioner can only be controlled and regulated by controlling the _______________ applied to the refrigerant

Heat

Recycling

Pressure

Water

23. An atom with less than ________ valence electrons is unstable.

6

8

10

12

24. The size of a capacitor's plates, the type of dielectric material and the distance between the plates or thickness of the dielectric determines

The dielectric constant

Capacitance

Electrostatic force

Inductance

25. In AC operation, the capacitor fully discharges at the same time the voltage drops to

63%

37%

Zero

One TC

26. The most effective means of evaluating the effectiveness of formal training is

Field evaluation visits

Direct correspondence questionnaires

Job performance evaluations

Final examinations

27. The primary use of a silicon control rectifier (SCR) is as a

Circuit amplifier

Spike protector

Voltage regulator

Electronic switch

28. 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.

Oil seperator

Condensor assembly

Temperature controller

Compressor

29. An increase in pressure causes _____________ the boiling point of refrigerant.

An increase

A decrease

No effect on

A fluctuation in

30. When a bare wire touches another wire or the frame of the unit, you have a(n)

Open circuit

Unwanted ground

Short circuit

Resistive circuit

31. On a SGNSC after the engine has warmed up the oil pressure gauge should read

25-38 psi

10-21 psi

43-57 psi

13-19 psi

32. On the EPU-6/E how does the operator know if CB1 is turned on

Audible alarm

Frequency meter

Hourmeter

Indicator light

33. Current flow in a circuit is controlled by a

Capacitor

Transistor

Resistor

Gate

34. If a generator is overhauled, it is automatically considered to be _______________ years old at the time the overhaul is complete.

2

3

4

5

35. The bomblift's ______ aids in starting the unit or when the engine is running rough due to vapor locks.

Preheat solenoid

Electric fuel pump switch

Ammeter

Starter solenoid

36. One component of the heat load in an air conditioner is the _____________, which is measured in PPM.

Quantity of refrigernat

Condensation

Quantity of air

Recycling

37. In the -60A generator set's bleed air system, the opening time is controlled by the load control valve's _______________ section.

Diaphragm

Load

Rate

Mechanical linkage

38. Use the power factor meter

During resistive and reactive load tests

During resistive load tests

When measuring apparent power

When measuring true power

39. True power is monitored by using a

Voltmeter

Ohmmeter

Watt meter

Multimeter

40. In a schematic, if the arrow in a bipolar transistor is pointing away from the base, we have a ____________ transistor.

PNP

NPN

N-type

P-type

41. Hot, expanding gases from the GTC turbine section's combustor can are accelerated and directed into the nozzle ring by the

Turbine wheel

Combustor cap

Torus assembly

Exhaust flange

42. In an air conditioner, the oil safety switch, low pressure cutout switch, and the high pressure cutout switch operate by shutting of the

Blower assembly

Fan cycle switch

Fuel heater relay

Compressor clutch

43. Whan a soft iron core in the coil of an electromagnet does not retain its magnetism when the power source is removed, it is said to have

Residual magnetism

Retentive magnetism

Low retentivity

Electromagnetic induction

44. When the fueld level in the -60A generator set drops to about a ___________ minute supply, a warning horn sounds to alert the operator that the fuel supply is running low.

5

10

15

20

45. Informational publications which normally are "how to" documents are

AFPAMs.

AFINDs.

AFIs.

AFSs.

46. An atom having ____________ valence electrons is called a semiconductor.

2

3

4

5

47. A decrease in control air pressure causes more fuel to be bypassed and decreases the amount of fuel to the atomizer.

True

False

48. The strength of the magnetic field is alwayst the highest at the ___________ of the magnet.

Core

Poles

Middle

North pole

49. Information on the latest hazard reporting procedures can be found in AFI -

36-2605

36-2104

51-504

91-202

50. The temperature of a gas changes because of ______ heat.

Latent

Sensible

Convection

Super

51. The ES establishes a maximum allowable one-time repair expenditure limit for each piece of equipment they manage costing over

$1500

$2000

$2500

$3000

52. Air + moisture vapor + quantity of air + temperature difference =

Heat

Heat load

CFM

PPM

53. Apparent power is measure in

KWAs

KWs

KVAs

KVs

54. The movement of the bomblift's cradle assmbly is controlled by the ___________ system.

Lift

Power steering

Hydrostatic drive

Hand pump

55. One of the most significant things that can be done to reduce the heat load in an air conditioner is to

Recycle the conditioned air

Increase the pressure

Recharge the system

Cool the air

56. The amount of voltage in either a step up or step down transformer is calculated by a formula called the

Inductive reactance formula

Turns ratio

Primary ratio

Power formula

57. If the A/M32A -95 engine cranks but doesn't start, the probable cause is

An open fuel solenoid

The auxiliary start relay is deenergized

The air load switch is shorted

The butterfly valve is open

58. 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.

Parallel part

Resistors

Series part

Combined parts

59. The larger the diameter of the conductor, the less

Capacitance

Resistance

Inductance

Conductance

60. Among the most common MPTO's is TO ________, which explains the TO system and methods to improve TO's.

00-20-3

00-5-1

00-20-7

00-5-2

61. In the GTC,the ___________ changes heat into electrical energy operating the exhaust gas temperature gauge.

EGT thermocouple

Pneumatic thermostat

Exhaust box assembly

Exhaust flange

62. In a full wave rectification, the ripple frquency is __________ the applied AC frequency.

Twice

Three times

Equal to

Less than

63. In the test set's AC load bank circuit, the A, B, and C phase load banks are operated ____________ to obtain the needed alternator loading.

Individually

In parallel

Either individually or in parallel

Alternately

64. It takes 970 BTUs to change one pound of ice at 32 degrees F to one pound of water.

True

False

65. Used in high frequency, high voltage circuits ranging up to 15,000 volts, the ______________ capacitor has a capacitance range between 5 and 50,000 pf with a tolernace of 5 to 10 percent.

Paper

Fixed

Mica

Ceramic

66. If an air conditioneris short cycling, you should check the

Receiver outlet valve

Setting of the LPCO

Heat load

Refrigerant, and drain off part of it

67. When hot gas is directed into the inlet of the evaporator, the temperature starts to rise and the ___________ valve senses the temperature changes and prevents overheating of the compressor.

Electric expansion

Quench

Hot gas bypass

TXV solenoid

68. In an air conditioner, the vapor temperature is raised above the temperature of the surrounding air by the

Heat load

Refrigerant

Compressor

Molecular activity

69. If an object has a positive charge of one coulomb, it has gained 6,280,000,000 protons.

True

False

70. The bomblift's power steering pump is driven by the

Coupling off the transmission pump

Shaft driven off the engine

Flexible coupling off the engine

Belt driven off the system pump

71. The amount of current required to gate the SCR is called

Avalanche breakdown point

Barrier voltage

120 ripples

Forward breakover voltage

72. What publications are issued by the SECAF, CSAF, commanders and staff officials at all levels of the Air Force?

AFDIR

AFVA

Standard publications

AFI

73. The flow of positive charges against the flow of electrons in semiconductor is called the

Valence

Covalence

Hole current

Electron voltage

74. Capacitors are used as a blocking device to block DC or in a filter to pass or reject a specific frequency.

True

False

75. In the -60A generator's engine electrical system, the compressor is delivering enough air at __________ percent to support turbine operation.

95

60

45

35

76. A convenient way to measure pressures that are below atmospheric pressure in a refrigernat system is

PSIA

PSI

PSIG

Hg

77. Procedures and standards for authenticating, controlling, procuring, and producing Air Force publications is the responsibilty of the

Commanders

Director of Information Management

MAJCOM

Chief of Staff, USAF

78. On a GTC you will see grayish white smoke coming out of the exhaust box if the ________ are defective.

Interstage seals

Turbine engine oil leaks

Inducers

Stationary divergent shaped blades

79. During the investigation of loss or damage to property, the findings and recommendations are documneted in blocks 1 through 11 on the DD Form _______, Financial Liability Investigation of Property Loss.

301

100

200

2005

80. The main purpose of the Hydraulic Test Stands supply system is

Supply hydraulic fluid to the aircraft

Store hydraulic fluid until needed by the test stand

Fill the lines and components with hydraulic fluid

Supply a continuos flow of fluid uner pressure to the high pressure pump

81. In order to make a silicon crystal conduct, material is added to it which contains _____________ valence electrons.

1 or 3

2 or 4

3 or 5

2 or 6

82. The DC voltage supplied to the A/M32A-86D generator set's exciter field is controlled by the __________ circuit.

Generator output

Load

Automatic field control

Manual field control

83. Varying the emitter-base current through a transistor varies the

Forward breakover voltage

Barrier voltage

Voltage to the load

Amplification

84. The heat used to change a solid to a liquid is referred to as

Super heat

Latent heat of vaporization

Sensible heat

Latent heat of fusion

85. The A/M32A-86D generator set's low oil pressure switch actuates at ____________ psi engine oil pressure. (S53 on schematic)

5

10

12

15

86. The silicon atom's valance band contains ____________ electrons and is classified as an intrinsic semiconductor.

4

6

8

12

87. A long core in an electromagnetic coil produces low inductance.

True

False

88. A fully charged capacitor requires _________ RC times constant.

3

5

7

10

89. After submitting AFTO form 375, initiate follow-up action with the item manager and MAJCOM/LGM if you do not receive an answer within _________ days overseas.

15

16

21

30

90. The oppostion of a capacitor to changes in voltage in an AC circuit is capactive

Resistance

Reactance

Resonance

Polarity

91. Closing the ignition switch applies to 28 VDC to the

Neutral start switch

Ammeter

Tachometer

Parking brake

92. Total pressure is expressed as

PSIG

PSI

PSIA

Hg

93. Items that are not repairable at this station, are condemned and require turn-in, are covered under TO

00-20-7

00-5-1

00-20-14

00-20-3

94. When a magnetic field induces voltage into a coiled conductor that opposes the original current, the process is referred to as

Self-induction

Resistance

Pulsation

Mutual inductance

95. To determine if a deficiency meets criteria for the deficiency reporting system, use

TO 00-20-54

TO 00-35D-54

TO 00-25-172

AFI 91-202

96. 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.

3

10

15

30

97. The action point has ______________ workdays to initially respond to a CAT II DR.

30

15

10

3

98. The 2 speed solenoid in the GTC electrical system is energized by the _______________ switch.

Oil pressure

Air load

35% centrifugal

Master

99. If we add to a silicon crystal an impurity with 3 valence electrons, the crystal becomes more negtive and is called the "N" type material.

True

False

100. In a series resonant circuit, if the frequency drops below the resonant value, inductive reactance exceeds capactive reactance and current flow increases.

True

False

2A672 EOC Pretest

1. Pressure output of the MJ-1B's hand pump varies from 0 to _____ psi.

2.

What first name or nickname would you like us to use?

2. The spring tension on the GTC's governor is set for loaded governor speed _________ percent.

3. On the A/M32A -86D generator set, the fault indicating lights remain illuminated until the

4. An increase in the charge of an electrostatic field causes a corresponding ____________ in the electrostatic force.

5. The GTC's _____________ provides high volume, low pressure air for servicing and starting the aircraft.

6. When we magnetize any material, the amount of magnetism that remains after the magnetizing force is removed is called

7. Heat transfers from hot to cold, and the transfer continues until

8. If a GTC is experiencing hot starts, the 1st component you would check is the ____________ valve.

9. Excess oil is drawn from the gear case in the lubrication system of the -60A generator by the

10. In the bomblift's hydrostatic drive system, changing the position of the ____________ controls the direction of the fluid to the transmission motor and the direction in which the bomblift moves.

11. What A/M32A -86D generator sets circuit provides initial rotation of the engine for starting the unit?

12. Only when you are performing resistive and reactive load tests at the same time is a(n) __________________ used.

13. As the actuator diaphragm in te GTC bleed air system moves, the __________________ valve starts to open.

14. The length of time it is considered economically feasible to repair a piece of equipment is determined by the

15. An inductor stores energy in the form of a(n)

16. If you notice that the exhaust gas temperature is excessively high during the operation of a -60A generator set, the probable cause is the

17. The hydraulic test stand incorporates a heat exchanger to coll and maintain the hydraulic fluid temperature below 165 degrees Fahrenheit.

18. Use the aircraft servicing load bank circuit to test the performance of 28 VDC genertors under simulated load.

19. If the south pole of one magnet is placed near the north pole of another magnet, the magnets are

20. The GTC is protected from damage by the

21. If you don't know how the air conditioning system is supposed to operate, it is next to impossible to fix it.

22. The boiling process in an air conditioner can only be controlled and regulated by controlling the _______________ applied to the refrigerant

23. An atom with less than ________ valence electrons is unstable.

24. The size of a capacitor's plates, the type of dielectric material and the distance between the plates or thickness of the dielectric determines

25. In AC operation, the capacitor fully discharges at the same time the voltage drops to

26. The most effective means of evaluating the effectiveness of formal training is

27. The primary use of a silicon control rectifier (SCR) is as a

28. 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.

29. An increase in pressure causes _____________ the boiling point of refrigerant.

30. When a bare wire touches another wire or the frame of the unit, you have a(n)

31. On a SGNSC after the engine has warmed up the oil pressure gauge should read

32. On the EPU-6/E how does the operator know if CB1 is turned on

33. Current flow in a circuit is controlled by a

34. If a generator is overhauled, it is automatically considered to be _______________ years old at the time the overhaul is complete.

35. The bomblift's ______ aids in starting the unit or when the engine is running rough due to vapor locks.

36. One component of the heat load in an air conditioner is the _____________, which is measured in PPM.

37. In the -60A generator set's bleed air system, the opening time is controlled by the load control valve's _______________ section.

38. Use the power factor meter

39. True power is monitored by using a

40. In a schematic, if the arrow in a bipolar transistor is pointing away from the base, we have a ____________ transistor.

41. Hot, expanding gases from the GTC turbine section's combustor can are accelerated and directed into the nozzle ring by the

42. In an air conditioner, the oil safety switch, low pressure cutout switch, and the high pressure cutout switch operate by shutting of the

43. Whan a soft iron core in the coil of an electromagnet does not retain its magnetism when the power source is removed, it is said to have

44. When the fueld level in the -60A generator set drops to about a ___________ minute supply, a warning horn sounds to alert the operator that the fuel supply is running low.

45. Informational publications which normally are "how to" documents are

46. An atom having ____________ valence electrons is called a semiconductor.

47. A decrease in control air pressure causes more fuel to be bypassed and decreases the amount of fuel to the atomizer.

48. The strength of the magnetic field is alwayst the highest at the ___________ of the magnet.

49. Information on the latest hazard reporting procedures can be found in AFI -

50. The temperature of a gas changes because of ______ heat.

51. The ES establishes a maximum allowable one-time repair expenditure limit for each piece of equipment they manage costing over

52. Air + moisture vapor + quantity of air + temperature difference =

53. Apparent power is measure in

54. The movement of the bomblift's cradle assmbly is controlled by the ___________ system.

55. One of the most significant things that can be done to reduce the heat load in an air conditioner is to

56. The amount of voltage in either a step up or step down transformer is calculated by a formula called the

57. If the A/M32A -95 engine cranks but doesn't start, the probable cause is

58. 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.

59. The larger the diameter of the conductor, the less

60. Among the most common MPTO's is TO ________, which explains the TO system and methods to improve TO's.

61. In the GTC,the ___________ changes heat into electrical energy operating the exhaust gas temperature gauge.

62. In a full wave rectification, the ripple frquency is __________ the applied AC frequency.

63. In the test set's AC load bank circuit, the A, B, and C phase load banks are operated ____________ to obtain the needed alternator loading.

64. It takes 970 BTUs to change one pound of ice at 32 degrees F to one pound of water.

65. Used in high frequency, high voltage circuits ranging up to 15,000 volts, the ______________ capacitor has a capacitance range between 5 and 50,000 pf with a tolernace of 5 to 10 percent.

66. If an air conditioneris short cycling, you should check the

67. When hot gas is directed into the inlet of the evaporator, the temperature starts to rise and the ___________ valve senses the temperature changes and prevents overheating of the compressor.

68. In an air conditioner, the vapor temperature is raised above the temperature of the surrounding air by the

69. If an object has a positive charge of one coulomb, it has gained 6,280,000,000 protons.

70. The bomblift's power steering pump is driven by the

71. The amount of current required to gate the SCR is called

72. What publications are issued by the SECAF, CSAF, commanders and staff officials at all levels of the Air Force?

73. The flow of positive charges against the flow of electrons in semiconductor is called the

74. Capacitors are used as a blocking device to block DC or in a filter to pass or reject a specific frequency.

75. In the -60A generator's engine electrical system, the compressor is delivering enough air at __________ percent to support turbine operation.

76. A convenient way to measure pressures that are below atmospheric pressure in a refrigernat system is

77. Procedures and standards for authenticating, controlling, procuring, and producing Air Force publications is the responsibilty of the