APU

Question 1

The maximum altitude that the APU can be started is ___.

Answer 1

30,000 ft

Question 2

The APU provides ___.

Answer 2

electrical power and bleed air.

Question 3

When powering down the airplane, make sure that the APU is showing ___ before turning off the batteries.

Answer 3

OFF

Question 4

The maximum altitude that the APU can be used for engine starting is ___.

Answer 4

21,000 ft

Question 5

The maximum altitude that the APU can be used to provide bleed air is ___.

Answer 5

15,000 ft

Question 6

Environmental conditions permitting, the APU should be started how many minutes prior to pushback?

Answer 6

10

Question 7

If you accidentally move the APU switch to OFF, in order to keep the APU running you must ___.

Answer 7

move the APU switch to ON within the one minute cool down period.

Question 8

If BATT 1 is deferred, what is needed to start the APU?

Answer 8

APU cannot be started without BATT 1

Question 9

What does “ECS OFF” takeoff mean?

Answer 9

Takeoff will be done with the APU ON.