08 Engines

Question 1

With the AUTOSTART ON, what’s controls the igniters?

Answer 1

The Electronic Engine Control (EEC).

Question 2

Under what conditions does the EEC command approach idle?

Answer 2

1) Engine anti ice is operating, or
2) The flaps are commanded to 25 or greater, or
3) One hydraulic system air driven demand pump is inoperative and the flaps are out of UP, or
4) The opposite engine bleed air valve is closed, or
5) Either CARGO FIRE ARM switches are ARMED.

Question 3

What conditions cause a red EGT start limit line to appear on the EGT gauge?

Answer 3

1) The FUEL CONTROL switch is in CUTOFF, or

2) The N2 is stable below IDLE.

Question 4

Which igniters does the AUTOSTART system use during a normal engine start?

Answer 4

The AUTOSTART system alternates the igniters used for each engine start.

Question 5

Which igniters does the AUTOSTART system use for an in flight engine start?

Answer 5

The AUTOSTART system energises both igniters for an in flight engine start.

Question 6

The AUTOSTART system monitors many parameters on engine start. What parameters does it not monitor?

Answer 6

Engine oil temperature and pressure.

Question 7

What conditions cause the in flight start envelope to be displayed on upper EICAS display?

Answer 7

1) Engine N2 is below idle RPM, or

2) An engine is shut down in flight and the engine fire switch is in the normal position.

Question 8

For an in flight start, how many start attempts will be AUTOSTART system make?

Answer 8

The AUTOSTART system will make continuous starts until a successful start attempt is made or the FUEL CONTROL switches are selected to CUTOFF.

Question 9

Where is the fuel flow measured?

Answer 9

After it passes though the engine fuel valve.

Question 10

What is he minimum duct pressure for a APU ground pneumatic start?

Answer 10

15 psi, less 1 psi per 1000 ft of pressure altitude.

Question 11

During an engine battery start, is bleed air available to both engines?

Answer 11

No. Bleed air is available to the left engine only. Start the left engine first for a ground battery start.

Question 12

What is the minimum duct pressure for an engine cross bleed start?

Answer 12

25 psi. Thrust will need to be increased to 5% above idle N2 or higher to achieve 25 psi duct pressure.

Question 13

During pre flight, on which FMC page is TO B selected?

Answer 13

CDU THRUST LIMIT page.

Question 14

During pre flight, on which FMC page is TO B selected?

Answer 14

CDU THRUST LIMIT page.

Question 15

When will the amber caution “ENG AUTOSTART L or R” be displayed?

Answer 15

When during a manual start the FUEL CONTROL switch is set to RUN at a low engine RPM.

Question 16

Does the EEC protect against EGT exceedance for an in flight start?

Answer 16

No. For an in flight start the EGT must be monitored.

Question 17

Can you re start an engine in flight that has been shut down due to fire?

Answer 17

No. An engine start is not permitted with a fire or apparent damage.

Question 18

When is “ENG CONTROL L or R” displayed?

Answer 18

On the ground if a fault is detected in the affected engine control system.

Question 19

When is “ENG FAIL L or R” displayed?

Answer 19

If the engine speed is below idle.

Question 20

When is “ENG REVERSER L or R” displayed?

Answer 20

When a fault is detected in the affected engine reverser system.