Engine

Question 1

What is the HP (high pressure) bleed air pressure delivered by each engine?

Answer 1

36 psi

Question 2

With the failure of EPR, what happens?

Answer 2

The autothrust is lost. To revert to N1 mode, on the overhead panel press each engines N1 mode button.

Question 3

At which detent on the Thrust Levers will the autothrust disarm and Alpha Floor deactivate?

Answer 3

Setting the thrust levers to the Idle detent will disarm the autothrust and deactivate Alpha Floor

Question 4

After taking off, when do the auto thrust engage?

Answer 4

Setting the thrust lever to the Climb detent

Question 5

What is TLA?

Answer 5

Thrust lever angle

Question 6

What is green dot speed?

Answer 6

Best left and drag ratio or single engine operating speed in clean configuration

Question 7

What does FADEC stand for?

Answer 7

Full authority digital engine control

Question 8

How many channels does the FADEC have?

Answer 8

Each FADEC has 2 channels. One that is operating and one on standby

Question 9

What is the relationship of the EIC (Engine Interface Unit) to the FADEC?

Answer 9

The EIC transmits the Data FADEC uses for it’s engine management. The FADEC controls the engine operations during start until shut down. It transmits it’s engine parameters and monitoring to the cockpit.

Question 10

When is the FADEC self powered?

Answer 10

The FADEC is self powered by a magnetic alternator when N2 is above 10%. Before and after, it is powered by the aircraft electrical system then turned off.

Question 11

If the engine failure no longer exists, can the N1 mode be switched off to return the engines to EPR mode?

Answer 11

Yes

Question 12

What are the differences with the N1 modes rated and unrated?

Answer 12

N1 Rated mode shows N1 limit on the upper right of the EWD, TLA and TLA max limit on the N1 engine arc. The unrated does not show these.

Question 13

During MRev, what limits this mode? N1 or EPR? Other than MRev?

Answer 13

Limited by N1. Not EPR. Other than M1, EPR is the reference

Question 14

What do the detents on the Thrust Lever represent?

Answer 14

Maximum thrust limit for that detent

Question 15

When on take off, what initial setting do you set the engines to using the EPR?

Answer 15

1.05

Question 16

What is the difference between FLEX and Derated Thrust?

Answer 16

Major difference:
FLEX - TOGA is allowed, with saving the engine life and cost efficiency, fooling the computer into thinking the OAT is a certain temperature (warmer) for so the computer will compute to that value. In the event of Windshear, we can immediately use TOGA
Derated Thrust - TOGA not allowed, setting a take off thrust (max 25%) less than maximum take off thrust

Question 17

Can we use FLEX or Derated Thrust on a contaminated runway for take off?

Answer 17

No. TOGA only