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Engines Flashcards

1
Q

What is the shaft horsepower of each engine under normal takeoff conditions?

A

4,580

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2
Q

What does the shaft horsepower increase to on the operating engine in the event of an engine failure after takeoff?

A

5,071

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3
Q

True or False: Propeller movement is accomplished by the turning of power turbines.

A

True

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4
Q

Where is the accessory gearbox mounted on the aircraft?

A

The High Pressure Compressor

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5
Q

True or False: The low pressure (axial) compressors are driven by their associated low pressure turbine.

A

True

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6
Q

Which of the following represents the speed of the low pressure axial compressor?

A

NL

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7
Q

Which of the following represents the speed of the high pressure centrifugal compressor?

A

NH

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8
Q

What powers the power turbines?

A

Combustion Gasses (exhaust gas)

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9
Q

When on the ground and the propellers are in the ground range of beta, it is indicated by:

A

Propeller Ground Range advisory lights

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10
Q

True or False: The propeller has a beta range used for reverse thrust on the ground.

A

True

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11
Q

What is the purpose of the engine bypass doors?

A

Prevents solid contaminants from entering the engine

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12
Q

When should the engine bypass doors be selected open?

A

In icing conditions or operating on contaminated runways

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13
Q

When should the engine bypass doors be open?

A

In icing conditions or operating on contaminated runways

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14
Q

True or False: The auxiliary fuel pump is powered by the accessory gear box.

A

False

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15
Q

True or False: The engine driven fuel pump is attached to the accessory gearbox.

A

True

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16
Q

True or False: The oil pump is attached to the accessory gearbox.

A

True

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17
Q

True or False: The DC starter generator is attached to the accessory gear box.

A

True

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18
Q

True or False: The permanent magnet alternator is attached to the accessory gearbox.

A

True

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19
Q

True or False: The FADEC is the primary computer for engine control.

A

True

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20
Q

What powers the FADEC?

A

PMA (Permanent Magnetic Alternator), Nh >20%

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21
Q

What provides an alternate power source for the FADEC during engine starting or if a PMA failure occurs?

A

DC Essential buses

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22
Q

When the condition levers are set to the 1020 RPM detent, what do they command the FADEC to set power to?

A

NTOP

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23
Q

When the condition levers are set to the 900 RPM detent, what do they command the FADEC to set power to?

A

MCL

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24
Q

When the condition levers are set to the 850 RPM detent, what do they command the FADEC to set power to?

A

MCR

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25
What prop speed is automatically set when in the over-travel range?
1020 RPM | 125% TRQ
26
What must pilots do to enter the ground beta range?
Raise the gate release triggers and move the levers aft
27
True or False: When in MAX REV, propeller RPM is limited.
True | 660 RPM
28
True or False: In order for uptrim to be armed, the power levers must be high and torque on both engines must be at least 50 %.
True
29
When is uptrim triggered?
Torque on failed engine falls below 25% Or NP falls below 80%
30
What does the FADEC limit torque to in reverse mode?
35%
31
What does the FADEC limit torque to when it is in the forward range?
106%
32
What does the FADEC limit transient torque to when it is in the overtravel range?
135%
33
True or False: There is independent engine overspeed protection built into the FADEC and it has the capability of cutting off fuel flow during NH overspeeds.
True
34
True or False: The FADEC fault classes are critical, cautionary, and advisory.
True
35
True or False: The FADEC fault classes are warning, advisory, and normal.
False
36
What does a green arc on the engine gauges mean?
Normal Operating Range
37
What does the yellow arc on the engine gauges mean?
Caution Range
38
What does the red dash on the engine gauges mean?
Minimum or Maximum Value
39
What color does the needle change to when the engine gauge needle enters the cautionary range?
Yellow
40
What color does the needle change to when the engine gauge is in the green arc?
White
41
What happens if the data becomes invalid for either engine gauge?
Digital values changes to white dashes gauge turns white, Needle removed
42
How is Torque (TRQ) displayed on the Engine Display?
Displayed as a percentage of maximum power
43
True or False: NH is shown in both analog and digital format on the Engine Display.
True
44
True or False: NL is shown in both analog and digital format on the Engine Display.
False
45
True or False: The oil indications on the Engine Display show both oil temperature and oil pressure.
True
46
True or False: The oil indications on the Engine Display show both oil temperature and oil pressure.
True
47
True or False: Power lever AND Condition lever positions are communicated to the FADEC to determine the appropriate fuel schedule to the engines.
True
48
True or False: The engine ignition system is controlled automatically by the FADEC.
True
49
At about what PSI will the #1 or #2 ENG OIL PRESS warning light illuminate?
44-50 psi
50
True or False: The oil is cooled by engine intake air.
True
51
True or False: The engine oil system lubricates engine bearings, gearboxes, and the landing gear.
False
52
True or False: Each propeller is constant-speed and fully feathering and can be operated in the reverse thrust range.
True
53
What controls propeller pitch?
Pressurized oil from the main engine oil system
54
True or False: Electrical heater elements are bonded to the inner leading edge of every other prop blade for ice protection.
False
55
What is the reduction gear box powered by?
Engine power turbine
56
True or False: If a PEC failure occurs, the PCU automatically defaults to controlling the minimum blade pitch in flight.
True
57
What do the counter weights do when oil pressure is lost in the propeller?
Aid in twisting (feathering/coarse pitch) the propeller blades.
58
True or False: The overspeed governor uses a flyweight design to limit propeller overspeed in the event of a malfunction.
True
59
Propeller RPM in flight depends on the position of what components?
- Condition levers | - Engine control panel
60
The PCU uses _____ to control propeller blade angle.
Engine Oil
61
True or False: Propeller synchrophasing is a manual function.
False
62
A failed engine with a wind-milling propeller at low blade angle creates what effect?
Drag
63
Which of the following is not a method used for propeller feathering?
<< Auto Feather, Manual Feather, ALT FTHR >>
64
What must engine torque exceed for A/F Select to change to ARM?
50%
65
What must the power levers be above for A/F Select to change to ARM?
Above 60 Degrees
66
If torque on either engine falls below _____ torque for at least _____ seconds, the PEC commands the propeller to the feather position.
25% Torque for at least 3 Seconds
67
True or False: Pilots can use the alternate feather function if the autofeather does not activate properly or is not selected (i.e. in cruise flight).
True
68
When is manual feathering most commonly used?
Engine shutdown for normal operations
69
When should nacelle intake bypass doors be opened?
Icing conditions or contaminated runway
70
FADEC FAIL will ultimately result in which of the following?
Shutdown of the power plant
71
In the forward range, propeller pitch _____.
is governed to maintain a constant speed
72
If the aircraft is configured properly for an NTOP takeoff and an engine fails, up-trim will automatically accomplish what?
Increases the operating engine rate from NTOP to MTOP
73
If an engine instrument digital display changes to dashes, what must be true?
The data is no longer valid
74
True or False: Uptrim is dependent on arming the autofeather system.
False
75
Which of the following statements regarding the engine-driven fuel pump is most accurate?
Is powered by the engine accessory gearboxc
76
With the Ignition switch in NORM, the FADEC activates the ignition circuitry during which of the following?
Engine start, Engine surge, & Flameout
77
What is engine oil cooled by?
An air cooler
78
How is propeller pitch controlled?
PEC Signals the PCU to use engine oil to move a piston in the hub
79
Pushing the ALT FEATHER switchlight will feather the prop _____.
Only with the condition levers and Power lever in the appropriate position
80
True or False: In ground range beta, the power levers directly control propeller pitch angle.
True

Q400 (31 decks)

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