Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

MTPC > Test 1 Subjects Check on learning questions only > Flashcards

Test 1 Subjects Check on learning questions only Flashcards

1
Q

What is the energy made available by the flow of electric charge through a conductor?

A

Electricity is the energy made available by the flow of electric charge through a conductor.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is an electric current flowing in one direction only and substantially constant in value?

A

DC is an electric current flowing in one direction only and substantially constant in value.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What happens to the output voltage during step-up transformation?

A

Step-up transformation is when the input coil has less wraps than the output coil causing the output voltage to increase.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

How is voltage controlled when the electricity flows into a coil causing the voltage in a second coil to have a different output voltage?

A

During transformation, voltage is controlled when electricity flows into a coil, causing the voltage in a second coil to have a different output voltage.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is an electrical current that reverses its direction at regularly recurring intervals?

A

AC is an electrical current the reverses its direction at regularly recurring intervals.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

How many independent generating systems provide primary AC power to the UH-60?

A

Primary AC power is provided by two independent generating systems

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What APU generator output parameters does the APU Generator Control Unit monitor?

A

The APU Generator Control Unit monitors:

over-voltage

under-voltage

feeder fault

under-frequency.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What components does the No.1 Junction Box contain?

A

The No. 1 Junction Box contains the No.1 generator contactor (K1), current transformer (T-13), current limiters (CL4, 5, 6) and one test receptacle.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the purpose of the 60 ampere current limiters?

A

The purpose of the 60 ampere current limiters are to protect the operating generator from excessive overloading during transfer operations.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What external AC inputs does the external power monitor panel monitor?

A

The external power monitor panel monitors under-voltage, over-voltage, under-frequency, over-frequency, and correct phase rotation conditions.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What component supplies power to the DC essential bus when no AC electrical power is supplied to the helicopter buses?

A

The battery supplies power to the DC essential bus when no AC electrical power is supplied to the helicopter.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What component provides connection between the No. 1 and the No. 2 DC primary buses?

A

The DC bus tie contactor (K15) provides connection between the No. 1 and the No. 2 DC primary buses.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the percentage of charge in the battery that allows the DC ESS BUS OFF capsule to illuminate?

A

The charge in the battery supplying the DC ESS BUS falls to 35%, will cause the BUS capsule to illuminate.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What parameters does the Battery Analyzer/Conditioner not monitor?

A

The Battery Analyzer/Conditioner monitors Battery Voltage, temperature conditions, and charging circuit for battery charging.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What component provides primary DC power for helicopter equipment?

A

The converter provides primary DC power for helicopter equipment.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What component provides primary DC voltage if the No. 1 converter fails?

A

The No. 2 converter provides primary DC voltage if the No. 1 converter fails.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What component provides primary AC voltage for the No. 1 AC buses if the No. 1 generator fails?

A

The No. 2 generator provides primary AC voltage for the No. 1 AC buses if the No. 1 generator fails.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What bus will be affected if there is a failure to the AC Essential Bus?

A

The 26 VAC bus will be affected if there is a failure to the AC Essential Bus.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What provides power to the AC essential bus if CL 2 fails, with No. 2 generator switch on, No. 1 generator switch off?

A

The No. 2 generator provides power to the AC essential bus if CL 2 fails, with No. 2 generator switch on, No. 1 generator switch off.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What component allows the No. 1 generator capsule to go off, with the No. 1 generator switch placed in the test position, after the test is complete?

A

The No. 1 generator control unit allows the No. 1 generator capsule to go off, with the No. 1 generator switch placed in the test position, after the test is complete.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Which systems does the No. 1 hydraulic system service?

A

The No. 1 hydraulic system services the first stage of the primary servos and the first stage of the tail rotor servo.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Which systems does the No.2 hydraulic system service?

A

The No. 2 hydraulic system services the second stage of the primary servos and the pilot assist module.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Which systems does the backup hydraulic system operate?

A

The backup hydraulic system operates the No. 1 or No. 2 system components, the second stage of the tail rotor servo, and the APU accumulator.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Which hydraulic systems provide power to the tail rotor servo?

A

The No. 1 and the backup system provide power to the tail rotor servo.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Which of the pump modules are interchangeable?

A

All of the pump modules are interchangeable with each other.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Which pump(s) is/are used to replenish the hydraulic charge on the APU accumulator?

A

The backup pump is used to replenish the hydraulic charge on the APU accumulator.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

What is the purpose of the RESET position on the Leak Detection / Isolation system?

A

The purpose of the RESET position on the Leak Detection/Isolation system is to reset the hydraulic system to its normal state and turn off the caution and advisory lights turned on during the test.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

What are the two primary purposes of the APU?

A

The two primary purposes of the APU are to provide an pneumatic air and an electrical power source.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

What are the major components of the APU?

A

The major components of the APU a gas turbine power section, reduction gear drive, and appropriate controls and accessories.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

What are the two modes that the ESU operates in?

A

The two modes that the ESU operates in are the start sequence mode and the operational mode.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

What must be removed to visually check the ESU BITE indicators?

A

The soundproofing panel from cabin ceiling must be opened in order to visually check the ESU BITE indicators.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

How is the APU accumulator recharged?

A

The APU is recharged by placing GENERATORS APU switch to ON and visually checking accumulator for proper charge (pressure gage and tape indicator) or by the hand pump.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

How Many analog displays does the Central Display Unit contain?

A

The Central Display Unit contains 12 analog displays.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

Where does the No. 1 and No. 2 Engine Gas Generator speed signal (Ng) originate?

A

The No. 1 and No. 2 Engine Gas Generator speed signal (Ng) originates in the alternator.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

At what temperature will the No. 1 or No. 2 ENG OIL TEMP capsule illuminate?

A

The No. 1 or No. 2 ENG OIL TEMP capsule will illuminate at temperatures more than 150 degrees.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

What component controls the audible warning function?

A

The left relay panel controls the audible warning function.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

When is the low rotor warning disabled?

A

The low rotor warning is disabled with weight on wheels.

39
Q

When is the No. 1 or No. 2 Engine Out warning present?

A

The No. 1 or No. 2 Engine Out warning is present when Ng is less than 55%.

40
Q
A
41
Q

What is the purpose of the starter speed switch?

A

The starter speed switch closes the start valve at 52%-65% Ng.

42
Q

How much damage is allowed in the pneumatic tubing?

A

Damage allowed in the pneumatic tubing is dents up to 25% of the tube diameter.

43
Q

What is the purpose of the APU check valve?

A

The purpose of the APU check valve is to prevent air from being forced back through the APU.

44
Q

When does the “True” #1 ENGINE STARTER caution light come on?

A

The “True” #1 ENGINE STARTER caution light comes on when the start control valve opens.

45
Q

Which switch causes the start control valve to open?

A

The start switch causes the start control valve to open.

46
Q

During engine start, ignition will continue until the ENGINE IGNITION is moved to the OFF position or _______ occurs?

A

During engine start, ignition will continue until the ENGINE IGNITION is moved to the OFF position or starter dropout occurs.

47
Q

Which switch causes the start control valve to open?

A

Start switch

48
Q

What position is the engine ignition switch in when you are going to only motor the engine?

A

The OFF position

49
Q

What type of system is used to start the main engines on the UH-60A/L?

A

An air turbine engine start motor.

50
Q

During an external start, what indications must be monitored closely?

A

TGT, ENG OUT warning disappears about 55 Ng%, ENGINE STARTER caution to disappear 52% to 65%,Clock stop when TGT TEMP peaks, Idle Speed above minimum of 63%,ENG OIL PRESS and XMSN OIL PRESS.

51
Q

When should you never do a cross bleed start?

A

For a new or newly installed engine

52
Q

What six or seven things must the copilot do during a start?

A

Control , 45 Sec, TGT exceeds limit, oil psi, %1 or 2 or % RPM R and ENGINE STARTER caution disappears before 52%Ng

53
Q

What does the acronym TGT stand for?

A

Turbine Gas Temperature

54
Q

What are the four positions of the PCL?

A

OFF, IDLE, FLY, LOCKOUT

55
Q

What does the acronym HMU stand for?

A

Hydromechanical Unit

56
Q

Where is the LDS cables connected to for both LDS Spindles to be moved at the same time?

A

MMU

57
Q

Are the axial stages through the GG rotors part of the Ng Section?

A

Yes

58
Q

How does the NG section initially begin to rotate?

A

By the PTO

59
Q

The T701C engine consists of what four modules?

A

The T701C engine consists of the Accessory Module, Cold Section Module, Hot Section Module, and Power Turbine Module.

60
Q

The number three bearing is a ball bearing, which absorbs the ________ and ________ load.

A

The number three bearing is a ball bearing, which absorbs the axial and radial load.

61
Q

The cast exhaust frame contains the ________ and bolts to the aft flange of the power turbine case.

A

The cast exhaust frame contains the C-sump and bolts to the aft flange of the power turbine case.

62
Q

There are ________ stages of axial compression in the T701C engine.

A

There are 5 stages of axial compression in the T701C engine.

63
Q

Name the four modules of the T700-GE-700 engine.

A

Cold, hot, power turbine, accessory gear box

64
Q

What section of the engine mechanically drives RPM R?

A

Np section

65
Q

Is the Ng section mechanically connected to NP?

A

No

66
Q

What is the connection between Np and RPM R?

A

One-way mechanical connection via the free-wheeling unit

67
Q

What drives the accessory gear box?

A

Gas Generator (at a variable speed)

68
Q

How many stages are there in the compressor section (Ng)?

A

There are 6: 5 axial and 1 centrifugal

69
Q

What are the two operational sections of the engine?

A

Ng and Np

70
Q

What are the three subassemblies that make up the oil filter?

A

The three subassemblies that make up the oil filter are the filter element, bowl and impending bypass indicator, and the bypass valve and inlet screen.

71
Q

The scavenge screens collect particles before they enter the ________.

A

The scavenge screens collect particles before they enter the lubrication and scavenge pump.

72
Q

Where does the scavenge oil flow to after it goes through the scroll vanes?

A

The scavenge oil flows to the oil tank after it has been through the scroll vanes.

73
Q

What is the service capacity for the engine oil?

A

7 quarts

74
Q

Where is the oil drawn from for the emergency oil system?

A

Sumps A and B

75
Q

How does engine oil cooling occur?

A

Liquid to liquid cooler, oil flow through the scroll vanes

76
Q

How does the oil system overcome high pressure during cold starts?

A

Oil filter bypass valve, liquid to liquid cooler bypass valve

77
Q

Which component provides electrical power to the engine?

A

Engine alternator

78
Q

How does the cockpit receive the Ng signal?

A

From the Ng winding of the alternator

79
Q

What happens If Ng signal is lost?

A

ENG OUT warning light and audio, and 0% Ng

80
Q

The engine mounted electrical alternator supplies AC power to the ignition exciter and the _________.

A

The engine mounted electrical alternator supplies AC power to the ignition exciter and the Digital Electronic Control (DEC).

81
Q

The ignition system is an AC powered capacitor discharge _________ type system.

A

The ignition system is an AC powered capacitor discharge low-voltage type system.

82
Q

What type of special tolerance, oxidation resistant wire, is the thermo elements of the thermocouple harness made of?

A

The thermo elements of the thermocouple harness are made from special tolerance, oxidation resistant chromel-alumel wire.

83
Q

The blue electrical cable carries signals between the torque and overspeed sensor, DEC, and the ________.

A

The blue electrical cable carries signals between the torque and overspeed sensor, DEC, and the ODV.

84
Q

Why does the fuel system operate on negative pressure?

A

It assures that the airframe fuel supply system is under negative pressure, lessening the potential of fire in case of fuel system damage.

85
Q

What happens when the fuel filter clogs?

A

Bypass indicator pops out, and the bypass valve opens

86
Q

How does the engine compensate for variable power demands from collective inputs?

A

The LDS increases/decreases fuel flow

87
Q

Metered fuel leaving the HMU is routed through the oil cooler and then to the ________.

A

Metered fuel leaving the HMU is routed through the oil cooler and then to the overspeed and drain valve.

88
Q

The 30 micron fuel filter provides absolute filtration for engine fuel prior to entering the ________.

A

The 30 micron fuel filter provides absolute filtration for engine fuel prior to entering the HMU.

89
Q

What are the parameters that influence fuel flow and variable geometry positioning?

A

The parameters that influence fuel flow and variable geometry positioning are T2, P3, and Ng.

90
Q

How is engine power adjusted with the ENG POWER CONT Levers in lockout?

A

Adjustment of the ENG POWER CONT levers adjusts the PAS to set the maximum power available.

91
Q

Adjustment of the ENG POWER CONT levers adjusts the PAS to set the maximum power available.

A

Yes, it is also supplied from the AC airframe power.

92
Q

What does the HSP automatically prevent?

A

It prevents over temperature during engine starts by shutting down the engine.

93
Q

What system keeps the engines at an approximate equal torque?

A

The torque matching/load sharing system.

MTPC (21 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions