Engines

Question 1

FADEC is supplied by:

Answer 1

PMA (permanent magnet alternator) if above N2 50%, or below N2 50% or PMA inop, by electrical system.

Question 2

Engine thrust ratings are controlled by:

Answer 2

FADEC

Question 3

The TLA trim function synchronizes the engine N1 when :

Answer 3

the AT is disengaged.

Question 4

The ATTCS automatically commands RSV whenever it is engaged, thrust levers are at TOGA position, and one of following conditions occurs:

Answer 4

– Difference between both engine N1 values is greater than 15%; – One engine failure during takeoff; – One engine failure during go-around; – Windshear detection

Question 5

Flex takeoff is limited to

Answer 5

25% engine thrust

Question 6

Engine oil is cooled by

Answer 6

Fuel

Question 7

TMS (Thrust Management System) is composed by

Answer 7

TRS, AT, TLA

Question 8

If no light off is detected within 15 s of fuel on, FADEC automatically turns off ignition and fuel…

Answer 8

continue dry motoring for 30 s, then turn on single ignition and turn on fuel again.
After 7 s of single ignition is applied, FADEC commands dual ignition for 8 s.
AOM II 14.06.20

Question 9

If no light off is detected after 15 s of the reintroduction of fuel or after start duty limit is reached, whichever occurs first…

Answer 9

the FADEC does not turn off fuel or ignition automatically.

AOM II 14-06-20

Question 10

The engine control system consists of the

Answer 10

FADEC, thrust lever, T2 and N1 sensors.

AOM II 14-06-30

Question 11

The FADEC provides engine start protection on the ground as follows:

Answer 11

– Hung start. – Hot start. – No light-off

AOM II 14-06-30