Brainscape's Knowledge GenomeTM

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


See full index

Jan 2022 United 737 Initial Flash Cards > Engine/APU > Flashcards

Engine/APU Flashcards

1
Q

When must the Engine Ignition be on?

A

Takeoff, Landing, Engine Anti-ice, and Heavy Rain

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

Maximum allowable EGT for Engine Start

A

725° C

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

Amber Arc on an Engine Limit Display indicates?

A

Cautionary range

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

Maximum altitude the APU can supply electrical power and bleed air?

A

10,000 feet

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

Maximum altitude the APU can supply bleed air only?

A

17,000 feet

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

Maximum altitude the APU can supply electrical power only?

A

41,000 feet

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

With the EEC in Normal Mode, if the thrust lever is advanced to the forward stop, what will the EEC do?

A

Limit thrust to the maximum certified thrust rating for current conditions.

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

What happened if the EEC lights display ON and ALT?

A

The EEC has automatically entered into soft alternate mode.

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

When the EEC is in soft alternate mode can the engine experience thrust rating shortfalls and exceedances?

A

Yes. EEC takes a snapshot of PA Temp and uses it until Hard ALT is selected

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

Does the EEC provide N1 and N2 overspeed protection in both Normal and Alternate Modes?

A

Yes.

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

What air sources can be used to start the engines?

A

APU, Ground Air, or Crossbleed

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

Power is removed from the start switch holding the solenoid for the start cutout at

A

approximately 56% N2 speed

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

What does the EEC monitor during ground starts?

A

Impending Hot Starts and EGT limit exceedances, and wet starts

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

A flashing white box surrounding the EGT during an engine start indicates?

A

Impending Hot Start

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

When the Engine start switch is placed in the GRD position what occurs?

A

Starter valve Opens, Engine Bleed Air valve Closes, (engine start levers in idle) selected ignitor are energized.

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

What happens when the Engine Start Switch is placed in CONT?

A

With engine start levers in idle, ignition is provided to both igniters when the engine is operating.

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

What happens when the Engine Start Switch is placed in FLT?

A

With engine start levers in idle, ignition is provided to both ignitors when the engine is operating.

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

IGN L provides power to Ignitors through what buses to what engines?

A

AC transfer Bus 1 for engine 1

AC transfer Bus 2 for engine 2

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

IGN R provides power to Ignitors through what buses to what engines?

A

AC Standby Bus for engine 1 and 2

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

What igniters does the EEC activate when it detects a flame out?

A

Both igniters are activated

21
Q

X-BLD Start able the N2 dial indicates

A

both engine igniters are activated

22
Q

When can the thrust reversers be deployed?

A

in the air with an RA of less than 10 feet, and on the ground with the safety sensor in the ground mode

23
Q

What does an amber REV displayed above the N1 gage indicate?

A

Thrust reverser is moved from the stowed position

24
Q

What does a green REV display above the N1 gage indicate?

A

Thrust reverser is deployed

25
Q

How do you get maximum reverse thrust?

A

pull beyond detent number 2

26
Q

What happens to the APU when moving the battery switch to off in the Air and on the Ground

A

in the air and on the ground it shuts the APU down abnormally

27
Q

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

A

The start cycle shuts down.

28
Q

What happens when the APU switch is moved to off?

A

APU generator trips, APU bleed air valve closes, APU GEN OFF BUS light goes dark, and it starts a 60 second cool down before a 60 second shut down.

29
Q

How long after APU start to use bleed air

A

One minute

30
Q

Can the APU be used with the blue maintenance light illuminated?

A

yes

31
Q

What does the APU OVERSPEED light indicate?

A
  1. Overspeed was detected and auto shutdown.

2. During a normal shutdown it failed the self test.

32
Q

In flight and the APU is the only source of electrical power what is shed?

A

All galley and main buses are shed, if the limit is still exceeded the IFE busses are also automatically shed.

33
Q

What does the Amber APU FAULT light indicate?

A

Malfunction exist shutting down the APU automatically

34
Q

Is it acceptable to have an APU LOW OIL PRESSURE light illuminate during start?

A

Yes

35
Q

What DU are the Secondary Engine Indications normally displayed?

A

Lower DU (Display Unit)

36
Q

How is Low Oil quantity indicated?

A

In reverse video LO (white)

37
Q

What does pushing the MFD Engine (ENG) switch do?

A

Displays secondary engine instruments on the lower DU

38
Q

How are the thrust reversers operated?

A

Hydraulically

39
Q

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

A

the auto-restow circuit

40
Q

How can N1 reference bugs be set manually?

A

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

41
Q

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

A

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

42
Q

START VALVE OPEN light indicates

A

Respective engine start valve is open and air is supplied to the starter

43
Q

A REVERSER light on the overhead panel indicates

A
  1. isolation valve or thrust reverser control valve is not in the commanded position
  2. one or more thrust reversers sleeves are not in the commanded position
  3. a failure has been detected in synchronization shaft lock circuitry
  4. the auto-restore circuit has been activated
44
Q

ENGINE CONTROL light on the overhead panel indicates

A

the control system is not dispatch able due to faults in the system

45
Q

A red N2 RPM display indicates

A

an operating limit has been exceeded

46
Q

What happens when the start lever is set to idle?

A
  1. energizes the ignition system through the EEC
  2. Electrically opens spar fuel shutoff valve in the wing leading edge outboard of the pylon.
  3. Mechanically closes the engine start valve
47
Q

Max continuous engine oil temp

A

140° C

48
Q

Minimum Oil quantity before start

A

70%

49
Q

How long must and engine idle before moving the thrust levers when the OAT is less then -35°C

A

2 minutes

Jan 2022 United 737 Initial Flash Cards (17 decks)

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