Engines/APU

Question 1

When must Engine Ignition be on:

Answer 1

• Takeoff and Landing

* B. Engine Anti-Ice Operation and Heavy Rain

Question 2

The maximum allowable EGT for Engine Start is_______.

Answer 2

725°C

Question 3

An Amber Arc on an Engine Limit Display indicates______.

Answer 3

Cautionary range

Question 4

On the B737-800, what is the maximum altitude that the APU can supply electrical power and bleed air up
to?

Answer 4

10,000 ft.

Question 5

On the B737-800, what is the maximum altitude that the APU can supply bleed air alone up to?

Answer 5

17,000 ft.

Question 6

On the B737-800, What is the maximum altitude that the APU can supply electrical power alone up to?

Answer 6

41,000 ft.

Question 7

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

Answer 7

limit thrust to the maximum certified thrust rating for current conditions

Question 8

On the engine panel on the aft overhead panel, when will both ON and ALTN be in view?

Answer 8

The EEC has automatically changed to the soft alternate mode

Question 9

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

Answer 9

can

Question 10

In what mode does the EEC provides N1 and N2 redline overspeed protection in?

Answer 10

normal mode and alternate mode

Question 11

Which air source may the engines be started with?

Answer 11

• The APU or ground source

* The engine crossbleed

Question 12

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

Answer 12

56%

Question 13

On the B737-800, what do the EECs monitor to detect during ground starts?

Answer 13

• impending hot starts and EGT start limit exceedances

* wet starts

Question 14

On the B737-800, a flashing white box surrounding the EGT during an engine start indicates_____.

Answer 14

an impending hot start

Question 15

When the Engine Start Switch is placed in the GRD position, _____occurs.

Answer 15

• 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

Question 16

When the Engine Start Switch is placed in the CONT position, ______ occurs.

Answer 16

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

Question 17

When the Engine Start Switch is placed in the FLT position, _____ occurs.

Answer 17

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

Question 18

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

Answer 18

AC standby bus

Question 19

_______occurs when the EEC detects an engine flameout

Answer 19

both engine igniters are activated

Question 20

X-BLD START above the N2 dial indicates ______.

Answer 20

crossbleed air recommended for inflight start

Question 21

The thrust reversers can be deployed when ______________________ or when either radio altimeter sense less than 10 feet RA.

Answer 21

the air / ground safety sensor is in the ground mode

Question 22

What does an amber REV displayed above the N1 gages on the center instrument panel indicate?

Answer 22

the thrust reverser is moved from stowed position

Question 23

What does a green REV displayed above the N1 gages on the center instrument panel indicate?

Answer 23

the thrust reverser is deployed

Question 24

_______thrust lever position will provide maximum reverse thrust.

Answer 24

pulling beyond detent No. 2

Question 25

In regard to the APU, what happens when moving the battery switch to OFF, on the ground or in flight?

Answer 25

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

Question 26

If the APU does not reach the proper speed with the proper acceleration rate within the time limit of the
starter, _____ happens.

Answer 26

the start cycle automatically terminates

Question 27

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. When does shutdown occurs?

Answer 27

automatically after a 60 second delay

Question 28

Operate the APU for ________ before using it as a bleed air source, in order to extend the service life of the APU.

Answer 28

one minute

Question 29

On the B737-800, in flight, what happens if the APU is the only source for electrical power?

Answer 29

all galley busses are automatically shed

Question 30

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

Answer 30

True

Question 31

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

Answer 31

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

Question 32

On the B737-800, the amber APU FAULT light illuminates______.

Answer 32

anytime a malfunction exists causing the APU to automatically shutdown

Question 33

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

Answer 33

True

Question 34

On the PFD/ND, where are the Secondary Engine Indications normally displayed?

Answer 34

Lower Display Unit

Question 35

On the PFD/ND, how is low oil quantity indicated?

Answer 35

in reversed video and LO (white)

Question 36

On the PFD/ND, what does pushing the MFD Engine (ENG) switch do?

Answer 36

displays secondary engine indications on lower DU

Question 37

Each Engine is equipped with a thrust reverser that is operated________.

Answer 37

hydraulically

Question 38

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

Answer 38

auto-restow circuit

Question 39

N1 reference bugs and readouts can be manually set by______.

Answer 39

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

Question 40

________condition(s) would cause an amber Engine Fail (ENG FAIL) Alert.

Answer 40

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

Question 41

A red N2 RPM display indicates______.

Answer 41

An operating limit is being exceeded

Question 42

A steady illuminated amber START VALVE OPEN Alert light indicates_______.

Answer 42

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

Question 43

An illuminated amber REVERSER light on the aft overhead panel indicates______.

Answer 43

• 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

Question 44

An illuminated amber ENGINE CONTROL light on the aft overhead panel indicates____.

Answer 44

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

Question 45

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.

Answer 45

Electrically opens engine-mounted fuel shutoff valve

Question 46

________ is the Maximum continuous engine oil temperature.

Answer 46

140°C

Question 47

The minimum engine oil quantity prior to engine start is_____.

Answer 47

70%

Question 48

It is required to all an engine to remain at idle for __ minute(s) before changing thrust lever position when
ambient temperatures are below -35° C.

Answer 48

2