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prog 1 > Prog 1 Excel Tester.xlsm - Engine > Flashcards

Prog 1 Excel Tester.xlsm - Engine Flashcards

1
Q

the Turbine Sections is a __________ turbine rotor with ___ thermocouples

A

4 stage turbine rotor with 18 thermocouples that send information to the TD System and the TIT gauges

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2
Q

14th stage bleed air system is ____________ of the acceleration bleed air system

A

14th stage bleed air system is independent of the acceleration bleed air system

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3
Q

Below 94%, the TD system limits TIT to _____ C during start, and has up to _____% Take

A

Below 94%, the TD system limits TIT to 830 C during start, and has up to 50% Take

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4
Q

Above 94% , the TD system limits TIT to ______ C in Normal Range, and has up to _____% Take

A

Above 94% , the TD system limits TIT to 1083 C in Normal Range, and has up to 20% Take

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5
Q

0 Degrees Coordinator =

A

Max reverse

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6
Q

34 Degrees Coordinator =

A

Flight Idle Range

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7
Q

0-66 Degrees Coordinator =

A

Temperature limiting Range

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8
Q

66-90 Degrees Coordinator =

A

Temperature Controlling Range

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9
Q

What limits engine overspeeds?

A

Flyweight governor on the fuel control unit (FCU)

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10
Q

How many engine driven pumps are there?

A

Three:
(1) Centrifugal engine (gear) driven boost pump;
(2) Primary Engine driven Pump;
(3) Secondary engine driven pump

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11
Q

Primary and secondary pumps always work in series. True or False?

A

False, between 16 and 65% they also parallel.

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12
Q

The compressor raises the intake air pressure by a ratio of ____ to 1

A

The compressor raises the intake air pressure by a ratio of 9.65 to 1

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13
Q

The PRIMER button must be depressed and held until the fuel control shutoff valve opens at ____ % RPM and enrichment occurs. The enrichment (primer) valve closes when fuel pressure in the manifold reaches ___ PSI

A

The PRIMER button must be depressed and held until the fuel control shutoff valve opens at 16 per cent RPM and enrichment occurs. The enrichment (primer) valve closes when fuel pressure in the manifold reaches 50 PSI

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14
Q

In the controlling range the TIT is approximately ______ C when the power lever crosses over from limiting to controlling at ___-degree co-ordinator

A

In the controlling range the TIT is approximately 820 C when the power lever crosses over from limiting to controlling at 66-degree co-ordinator

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15
Q

at take-off the TIT is _____ C maximum at ___-degree co-ordinator. TD is ____% Put & _____% Take

A

at take-off the TIT is 1083 C maximum at 90-degree co-ordinator. TD is 15% Put & 20% Take.

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16
Q

Between 66 and 90 Degrees coordinator, there is ________________________________________ for each powr level setting

A

Between 66 and 90 Degrees coordinator, there is an associated TIT for each power level setting.

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17
Q

5th stage bleed air is vented____

A

overboard

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18
Q

10th stage bleed air is vented ___________

A

into zone 1

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19
Q

What are the components of each of the fire detection subsystems (x4)

A

Sensing element
Control unit (in the forward electrical load centre)
Two warning circuits (visual and audible)
A test circuit

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20
Q

How many fire warning horns are energized with a fire or overheat in flight with the landing gear up?

A

1

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21
Q

What prevents the cabin fire warning horn from operating while airborne with landing gear up?

A

Nose gear uplock switch

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22
Q

How will the fire sensing system operate if there is a break in the continuous loop sensing system?

A

It will detect a fire or overheat condition but will not test

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23
Q

What is the purpose of the Ground Idle Position of the Power lever?

A

Select a blade angle that will offset thrust from jet exhaust

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24
Q

Turbine Inlet Temp (TIT) Limits Ground start

A

200 C

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25
Q

Turbine Inlet Temp (TIT) Limits Air Start

A

150 C

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26
Q

Turbine Inlet Temp (TIT) Limits Prime Start

A

100 C

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27
Q

Turbine Inlet Temp (TIT) Limits Normal Rated

A

1010 C

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28
Q

Turbine Inlet Temp (TIT) Limits Normal Cruise

A

925 C

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29
Q

Turbine Inlet Temp (TIT) Limits Normal Climb

A

950 C

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30
Q

Turbine Inlet Temp (TIT) Limits Military Power

A

1049 C (30 Min)

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31
Q

Turbine Inlet Temp (TIT) Limits Max TIT

A

1175 C (5 Sec)

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32
Q

Turbine Inlet Temp (TIT) Limits Max reverse (Normal)

A

790 C

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33
Q

Turbine Inlet Temp (TIT) Limits Max reverse (low)

A

730 C

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34
Q

Turbine Inlet Temp (TIT) Limits Maximum Power

A

1077 +6/-10 C (5 minutes)

35
Q

Turbine Inlet Temp (TIT) Range - Low RPM

A

410 to 730 C

36
Q

Turbine Inlet Temp (TIT) Range - Normal RPM (start position)

A

445 to 645 C

37
Q

Turbine Inlet Temp (TIT) Range - Maximum Reverse

A

580 to 790 C

38
Q

Turbine Inlet Temp (TIT) Range - Flight Idle

A

430 to 705 C

39
Q

What is the Speed Sense Switch, and what does it do?

A

it is A centrifugally operated switch in the starter which opens between 57-64% RPM.

40
Q

What functions does the speed sense switch sequence? (x3)

A

closing the engine starter control valve,
Extinguishes the START VALVE & Starter Control Valve Open Lights
Causes the START button to release

41
Q

What is the Speed Sense Valve ?

A

An engine-driven, flyweight-actuated valve installed on the forward face of the accessory drive housing.

42
Q

Speed Sense VALVE Operation?

A

At 94%, the Speed sense valve closes the 5th and 10th stage pneumatic pucks using 14th stage bleed air

43
Q

What is the Speed Sense Control

A

An engine driven electromechanical device that operates engine electrical circuits as a function of RPM. The speed sensitive control automatically sequences ignition on at 16% and off at 65 %by actuation of the ignition relay

44
Q

Speed Sense Control parameteres (x3)

A

(1) Energize Closed at 16% RPM;
(2) De-energized at 65%RPM (Px holds closed);
(3) Opens when manifold fuel decreased to 8-10 PSI

45
Q

Functions of the Speed Sensitive Control - 16% (x5)

A

F turns on fuel
I turns on ignition
P parallels fuel pumps
P enables prime
DV closes manifold drain valve

46
Q

Functions of the Speed Sensitive Control - 65% (x3)

A

I turns off ignition
DV de-energizes drain valve
PS puts fuel pumps in series

47
Q

Functions of the Speed Sensitive Control - 94% (x1)

A

shifts TD control amplifier from start limiting to normal limiting

48
Q

How is the engine starting valve closed?

A

automatically by a starter speed sensitive switch.

49
Q

During a start cycle, ignition occurs when?

A

between 16% - 65% RPM

50
Q

Igniters are located…

A

located in combustion liners 2 and 5

51
Q

Cranking an engine with the FUEL and IGNITION circuit breaker out will:

A

result in fuel reaching engine and ignition will occur.

52
Q

The ignition exciter is powered through:

A

FUEL SHUTOFF VALVE CB

53
Q

How many fire extinguisher bottles are on each side of the aircraft?

A

2

54
Q

Which engine zones does the fire extinguisher agent release into when activated?

A

1, 2, 3

55
Q

How many HRD systems does the a/c have?

A

Two electrically controlled HRD systems. One for each side of Aircraft.

56
Q

When will the fire warning lights extinguish?

A

When the fire or overheat condition is no longer present

57
Q

If you have pressed the horn lock-out button during a fire, will you have audio indications in the event another engine senses an overheat condition?

A

No; if the control unit continued to sense the original fire/overheat you would have no audio indication until the original condition ceased to exist. This allows the horn lock-out relay to be energized and provide further warning

58
Q

Differentiate Zone one, Zone two, and Zone threeof the Fire extinguishing system

A

Zone one - area aft of firewall (hot end)
Zone two - area forward of firewall Compressor and Accessory section
Zone three - landing gear/nacelle area

59
Q

FOUR MAJOR COMPONENTS OF ENGINE

A
  1. Air Inlet Housing
  2. Compressor Section
  3. Combustion Section
  4. Turbine Section
60
Q

The combustion section FUEL DRAINS are…

A

spring loaded open.

61
Q

ACCELERATION BLEED AIR system…

A

is dumped overboard and into ZONE 1.

62
Q

The fuel pump PARALLELING light is normally illuminated during start between…

A

16 and 65% RPM.

63
Q

At what temperature will OIL HOT light illuminate on the horizontal annunciator panel:

A

100 C

64
Q

Two combustion liner drain valves OPEN on engine coast down (Spring loaded) and CLOSE during start at:

A

2 to 4 PSI air pressure

65
Q

What accessories are mounted on the front power accessory drive assembly? (x4)

A

speed sensitive control
speed sensitive valve
main oil pump
oil filter

66
Q

What accessories are mounted on the rear face power accessory drive assembly? (x3)

A

engine driven fuel pump
fuel control unit
scavenge pump

67
Q

The compressor drive section contains the ____ stage compressor rotor, a _____ piece compressor case with acceleration bleed air valves located at the ___ and ___ stages

A

The compressor drive section contains the 14th stage compressor rotor, a 4 piece compressor case with acceleration bleed air valves located at the 5th and 10th stages

68
Q

The engine bleed air system provides heated, pressurized air from the 14th compressor stage bleeds for what items..? (x4)

A

bomb-bay heating
wing anti-icing
oil cooler flow augmentation & engine anti ice and acceleration bleed system
cross-bleed engine starting & engine anti-ice acceleration bleed system

69
Q

From where does compressed air come from to power the pneumatic turbine starter? (x3)

A

external source
APU
14th stage bleed air from another operating engine

70
Q

In the temp limiting mode of TD ops, what is the temp limited to? (Below 94% and above 94%)

A

Below 94% limited to 830 deg TIT
Above 94% limited to 1077 +6/-10 deg TIT

71
Q

horsepower limits for Warm up

A

minimum HP until oil temperature above 0 C

72
Q

horsepower limits when Oil temperature 0 to 40 C

A

1000 HP maximum

73
Q

horsepower limits Aircraft limiting power

A

4600 HP time limit dependent on TIT used

74
Q

horsepower limits Engine limiting power

A

5300 HP for 3 seconds maximum

75
Q

The TIT scheduling potentiometer changes with each power lever movement but has no effect until the coordinator switch is actuated above _____ degrees.

A

66

76
Q

What is the TD System?

A

An electronic supplement to the fuel control unit.

77
Q

Where is external air connected for a start?

A

Inboard leading edge of starboard wing.

78
Q

There is a fire warning horn above the MELC. When will it work?

A

When nose gear is down and locked.

79
Q

Electrical functions of E-handle (2F BEO)

A

(F) FCU (shutoff fuel)
(F) Feather valve solenoid (actuates)
(B) Bleed air shutoff valve (Closes)
(E) EDC (dump) Firewall shutoff valve(Closes)
(O) Oil tank Shutoff Valve (Close)

80
Q

Mechanical Functions of the E-handle (3F Gen)

A

(F) FCU (shutoff fuel)
(F) Feather Valve (mechanically moves it to the Fx position)
(F) Fuel Tank Emergency Shutoff Valve (closes)
(GEN) Generator Cooling Air Shutoff Valve (Closes)

81
Q

During start, the fuel control shut-off valve remains in the closed position until the engine reaches _____ % rpm.

A

16

82
Q

What powers the valve open after 16% rpm permitting fuel to flow the engine?

A

speed sensitive control

83
Q

How is primer applied during a start?

A

PRIMER button must be depressed and held until the fuel control shut-off valve opens at 16% rpm and enrichment occurs

84
Q

What does the 94% Speed sense switch do?

A

Switches from Start limiting to normal limiting

prog 1 (7 decks)

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