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UAL 737 NG Systems > Engine > Flashcards

Engine Flashcards

1
Q

Engine Ignition must be on for:

A

() all answers are correct
() Takeoff and Landing
() Engine Anti-Ice Operation and Heavy Rain

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2
Q

What is the maximum allowable EGT for Engine Start?

A

725°C

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3
Q

What is minimum oil pressure?

A

13 psi

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4
Q

What does an Amber Arc on an Engine Limit Display indicate?

A

Cautionary range

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5
Q

On the B737-800, the APU can supply electrical power and bleed air up to a maximum altitude of ________.

A

10,000 ft.

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6
Q

On the B737-800, the APU can supply bleed air alone up to a maximum altitude of ________.

A

17,000 ft.

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7
Q

On the B737-800, the APU can supply electrical power alone up to a maximum altitude of ________.

A

41,000 ft.

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8
Q

With the EEC in Normal Mode, if the thrust lever is advanced to the forward stop, the EEC will ____________________________.

A

limit thrust to the maximum certified thrust rating for current conditions

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9
Q

On the engine panel on the aft overhead panel, both ON and ALTN may be in view if the EEC has __________.

A

automatically changed to the soft alternate mode

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10
Q

When the EEC is in soft alternate mode, thrust rating shortfalls and exceedances _______ occur as flight conditions change.

A

can

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11
Q

The EEC provides N1 and N2 redline overspeed protection in __________.

A

normal mode and alternate mode

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12
Q

The engines may be started with air __________.

A

() all answers are correct
() from the APU or ground source
() by using engine crossbleed

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13
Q

On the B737-800 power is removed from the start switch holding the solenoid for starter cutout at approximately what N2 speed?

A

56%

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14
Q

On the B737-800, during ground starts, the EEC monitors engine parameters to detect:

A

() all answers are correct
() impending hot starts and EGT start limit exceedances
() wet starts

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15
Q

On the B737-800, what does a flashing white box surrounding the EGT during an engine start indicate?

A

an impending hot start

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16
Q

What occurs when the Engine Start Switch is placed in the GRD position?

A

() all answers are correct
() the starter valve opens, the engine bleed air valve closes
() the selected igniters(s) are energized when the engine start lever is placed to IDLE

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17
Q

What occurs when the Engine Start Switch is placed in the CONT position?

A

() Ignition is provided to the selected igniters when engine is operating and engine start lever is in IDLE

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18
Q

What occurs when the Engine Start Switch is placed in the FLT position?

A

() Ignition is provided to the both igniters when engine is operating and engine start lever is in IDLE

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19
Q

IGN L, is powered by AC transfer bus #1 for engine #1 and AC transfer bus #2 for engine #2. IGN R is powered by _________ for either engine.

A

AC standby bus

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20
Q

What occurs when the EEC detects an engine flameout?

A

both engine igniters are activated

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21
Q

What does X-BLD START above the N2 dial indicate?

A

crossbleed air recommended for inflight start

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22
Q

The thrust revers can be deployed when either radio altimeter sense less than 10 feet altitude, or when ______________________.

A

the air / ground safety sensor is in the ground mode

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23
Q

An amber REV displayed above the N1 gages on the center instrument panel indicated ________.

A

the thrust reverser is moved from stowed position

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24
Q

A green REV displayed above the N1 gages on the center instrument panel indicated ________.

A

the thrust reverser is deployed

25
Q

Which thrust lever position will provide maximum reverse thrust?

A

pulling beyond detent No. 2

26
Q

Each Engine is equipped with a __________ operated thrust reverser.

A

hydraulically

27
Q

In the event of incomplete stowage or uncommanded movement of the thrust reverser sleeve toward the deployed position, the ____________ will open the isolation valve and command the control valve to stow the thrust reverser.

A

auto-restow circuit

28
Q

Which section of the compressor on the engine produces low temperature, low pressure air?

A

N1

29
Q

How can N1 reference bugs and readouts be manually set?

A

By turning the N1 SET inner knob when the N1 SET outer knob is set to BOTH, 1, or 2.

30
Q

What condition(s) would cause an amber Engine Fail (ENG FAIL) Alert?

A

Engine N2 below sustainable idle (50% N2)and engine start lever in IDLE position

31
Q

What does a red N2 RPM display indicate?

A

An operating limit is being exceeded

32
Q

What occurs when the FUEL FLOW Switch is placed in the RESET position?

A

The fuel used is reset to zero

33
Q

What does a steady illuminated amber START VALVE OPEN Alert light indicate?

A

The respective engine start valve is open and air is supplied to the starter

34
Q

What does a steady illuminated amber LOW OIL PRESSURE Alert light indicate?

A

The oil pressure is at or below red line

35
Q

What does a steady illuminated amber OIL FILTER BYPASS Alert light indicate?

A

There is an impending bypass of scavenge oil filter

36
Q

What does blinking amber START VALVE OPEN Alert light along with 2 solid amber boxes on the upper display indicate?

A

There is an uncommanded opening of start valve

37
Q

On a B737-800, what does a White Arc on an Engine Limit Display indicate?

A

Normal operating range

38
Q

What does Red Line on an Engine Limit Display indicate?

A

Maximum and minimum limits

39
Q

On the B737-800, what is minimum oil quantity prior to engine start?

A

60%

40
Q

On the B737-800, where is engine vibration displayed?

A

Secondary Engine Display on the Lower Display Unit

41
Q

What position on the engine ignition select switch will select all igniters for use on both engines?

A

BOTH

42
Q

What does an illuminated amber REVERSER light on the aft overhead panel indicate?

A

() all answers are correct
() The isolation valve or thrust reverser control valve is not in commanded position, one or more thrust reversers sleeves are not in commanded state, or a failure has been detected in synchronization shaft lock circuitry
() The auto-restow circuit has been activated

43
Q

What does an illuminated amber ENGINE CONTROL light on the aft overhead panel indicate?

A

The engine control system is not dispatchable due to faults in the system

44
Q

Can the Forward Thrust Lever be advanced if the reverse thrust lever is in the deployed position?

A

No

45
Q

Moving the Engine Start Lever to IDLE energizes ignition system through EECs; electrically opens spar fuel shutoff valve in the wing leading edge, outboard of the pylon; and ________________.

A

Electrically opens engine-mounted fuel shutoff valve via the EEC

46
Q

Moving the battery switch to OFF __________________.

A

on the ground or inflight, causes an automatic shutdown of the APU

47
Q

In times other than engine starting, when electrical load and bleed air extraction combine to raise the EGT on the APU above acceptable levels, __________________.

A

bleed air extraction is reduced while maintaining electrical load

48
Q

What happens if the APU does not reach the proper speed with the proper acceleration rate within the time limit of the starter?

A

the start cycle automatically terminates

49
Q

On the B737-800, moving the APU switch to the OFF position trips the APU generator, closes the APU bleed air valve and extinguished the APU GEN OFF BUS light. Shutdown occurs _______.

A

automatically after a 60 second delay

50
Q

To extend the service life of the APU, operate the APU for ________ before using it as a bleed air source.

A

one minute

51
Q

On the B737-800, in flight, if the APU is the only source for electrical power, ___________________.

A

all galley busses are automatically shed

52
Q

On the B737-800, can the APU be operated with the blue Maintenance (MAINT) light illuminated?

A

Yes

53
Q

On the B737-800, an amber APU OVERSPEED light is illuminated, this indicates the APU RPM limit has been exceed resulting in an automatic shutdown, or __________________.

A

The overspeed shutdown protection feature has failed a self-test during normal APU shutdown

54
Q

On the B737-800, when does the amber APU FAULT light illuminate?

A

anytime a malfunction exists causing the APU to automatically shutdown

55
Q

On the B737-800, is it acceptable to have an APU LOW OIL PRESSURE light illuminated during APU start?

A

Yes

56
Q

On the PFD/ND, Secondary Engine Indications are displayed on the ________________.

A

Lower Display Unit

57
Q

On the PFD/ND, low oil quantity is indicated __________.

A

in reversed video and LO (white

58
Q

On the PFD/ND, pushing the MFD Engine (ENG) switch __________.

A

displays secondary engine indications on lower DU

UAL 737 NG Systems (15 decks)

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