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P-3C Basics > Engine System Review Questions > Flashcards

Engine System Review Questions Flashcards

1
Q

The T-56-A-14 engine is rated at ____ SHP.

A

4600

NATOPS 2.9

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2
Q

The 6 uses of 14th stage bleed air include: engine starting, engine anti-icing, wing deicing, oil cooling augmentation, bomb bay heating, and:

A

closing the 5th and 10th stage bleeds.

WEEBOC

NATOPS 2.9.2

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3
Q

Fourteenth stage bleed air is tapped off the ____ section.

A

compressor

NATOPS 2.9.2

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4
Q

The ignitors are in:

A

cans 2 and 5

NATOPS 2.9.3

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5
Q

Of all the airflow entering the combustion section, approximately percent is used for combustion.

A

25%

NATOPS 2.9.3

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6
Q

The 18 thermocouples mounted in each engine turbine inlet casing send a signal to the ____.

A

TIT indicator and temperature datum control

NATOPS 2.9.12.2

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7
Q

The turbine section consists of ____ stages.

A

Four

NATOPS 2.9.4

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8
Q

The engine accessory section is mounted on and driven by gearing from the ____ section.

A

compressor

NATOPS 2.9.5

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9
Q

The equipment mounted on the compressor accessory section are the engine fuel pump, the main oil pump, the speed sense control, the scavenge oil pump, the:

A

fuel control unit, the oil filter, and the speed sense valve.

NATOPS 2.9.5

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10
Q

The reduction gearbox reduces ____ of the power section to ____ for use by the propeller.

A

high RPM, low torque; low rpm, high torque

NATOPS 2.9.6

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11
Q

The torquemeter assembly transmits torque from the power section to the reduction gear assembly, provides the primary support structure between the power unit and the RGB, and:

A

displays SHP on the indicators in the flight station.

NATOPS 2.9.7

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12
Q

Shaft horsepower gauges are powered by ____.

A

MEAC

NATOPS Fig. 2-5

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13
Q

The TIT gauges are powered by ____.

A

SEAC

NATOPS Fig. 2-5

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14
Q

The fuel flow gauges are powered by ____.

A

Bus A

NATOPS Fig. 2-5

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15
Q

Each engine oil system take has a useable capacity of ____ U.S. gallons.

A

8.65

NATOPS 2.9.14.1

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16
Q

Engine oil cooling augmentation requires the oil cooler door be fully opened, the power lever below flight idle, and

A

the start selector off.

NATOPS 2.9.14.3

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17
Q

The electrical functions of the emergency shutdown handle are controlled by electrical wiper switches, activated by the E-Handle, and powered by:

A

MEDC

NATOPS 2.9.10

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18
Q

If a fire warning sensing element is broken, the system will:

A

still sense a fire up to both sides of the break, but will not test.

NATOPS 2.9.13.1

19
Q

Each engine fire extinguishing bottle simultaneously receives power from two independent sources. They are:

A

EMDC and MEDC

NATOPS 2.9.13.2

20
Q

The ignitors operate:

A

between 16% and 65% engine rpm.

NATOPS 2.9.9.3

21
Q

The purpose of the 5th and 10th stage bleed valves is to:

A

unload the compressor during engine acceleration

NATOPS 2.9.9.6

22
Q

The 16% switch on the speed sense control opens the fuel shutoff valve, energizes the igniters, energizes the fuel drain manifold solenoid, and:

A

energizes the paralleling valve solenoid to put the fuel pumps into parallel.

NATOPS 2.9.9.3

23
Q

The 94% switch on the speed sense control:

A

changes the TD system from start limiting to temperature limiting.

NATOPS 2.9.9.5

24
Q

The speed sensitive valve:

A

closes the 5th and 10th stage bleed air ports at 94%

NATOPS 2.9.9.6

25
Q

The starting system requires a stabilized air source that must maintain a minimum of ___ psi at 16% RPM

A

25

NATOPS 2.9.9.1, 8.5

26
Q

The engine starter uses ____ from the ____ to provide engine rotation during a normal start.

A

compressed air; APU, an operating engine, or an external gas turbine compressor

NATOPS 2.9.9.1

27
Q

The paralleling valve solenoid in the engine fuel system is energized by:

A

the ignition relay at 16%

NATOPS 2.9.9.3

28
Q

The fuel manifold drain valve is closed:

A

electrically at 16% and is held closed by fuel pressure above 65% RPM

NATOPS 2.9.9.3

29
Q

A CHIPS light indicates metal particles on a plug in the:

A

engine power section and/or the reduction gearbox

NATOPS 2.9.12.9

30
Q

Maximum allowable oil pressure fluctuation in the power section at 100% RPM is ____ psi, provided pressure remains within limits.

A

+-5

NATOPS Fig 4-2

31
Q

The maximum time for operation of the T56-14 engine at 1077 TIT is ___ minutes.

A

5

NATOPS Fig 4-2

32
Q

Maximum TIT in normal rpm at ground start is

A

645 C

NATOPS Fig 4-2

33
Q

In normal rpm, normal gearbox oil pressure is __ to 250 psi.

A

150

NATOPS Fig 4-2

34
Q

Maximum allowable oil pressure fluctuation in the reduction gearbox at 100% rpm is psi, provided pressure remains within limits.

A

+-20

NATOPS Fig 4-2

35
Q

Reduction gearbox oil pressure limits are 150-250 psi. Operation:

A

below 150 psi when below 100% rpm is permitted

NATOPS Fig 4-2

36
Q

After returning to a positive g condition, following negative g flight, shut down the engine if oil pressure fluctuates for more than ___ seconds.

A

15

NATOPS Fig 4-2

37
Q

In flight, oil pressure limits in the power section are ____ psi.

A

50-60

NATOPS Fig 4-2

38
Q

Under extremely cold weather conditions, you may operate an engine with oil temperatures between 50-60C provided:

A

all oil pressure limitations are maintained.

NATOPS Fig 4-2

39
Q

With an engine oil temperature of +25C, the maximum allowable SHP is:

A

1000

NATOPS Fig 4-2

40
Q

With LOW rpm slected, a properly adjusted fuel control will maintain engine rpm between:

A

71.0-73.8

NATOPS Fig 4-2

41
Q

After being shifted to NORMAL rpm and the power lever at 15 degrees coordinator, the engine rpm should be ___

A

96.3-99.1

NATOPS Fig 4-2

42
Q

Torquemeter “flop over” can occur with too rapid an application of power. This means that at least ___ SHP has been momentarily exceeded and the engine shall be ____.

A

5300; inspected as soon as possible

NATOPS 4.3

43
Q

Maximum power may be applied for takeoff provided:

A

oil temperature is 40C and rising with no fluctuations in the gearbox oil pressure

NATOPS Fig 4-2

44
Q

After executing a max power takeoff (1077 TIT), you must retard the power lever within ___ mins.

A

5

NATOPS Fig 4-2

P-3C Basics (33 decks)

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