APU

Question 0

The APU supplies pneumatic power for

Answer 0

Main engine starts and air conditioning

Question 1

The APU is equipped with a:

Answer 1

40 KVA generator

Question 2

The APU ECU electronic control unit controls the APU during

Answer 2

All phases of operation

Question 3

The APU control system ensures priority is given to

Answer 3

Electric loads

Question 4

Pressurized fuel is supplied to the APU by the

Answer 4

APU fuel pump

Question 5

What is the purpose of the internal bypass valve?

Answer 5

Allows the APU to continue to run if APU pump fails because the bypass spring opens

Question 6

APU RPM is displayed on the

Answer 6

EICAS status page

Question 7

APU bleed air is controlled by modulating

Answer 7

APU LCV load control valve

Question 8

APU bleed pressure readout can be monitored on

Answer 8

EICAS “ECS” environmental control system Synoptic page

Question 9

APU “avail” will illuminate at

Answer 9

99% RPM and 2 seconds later

Question 10

The APU gauges RPM and EGT appear on EICAS when

Answer 10

APU POWER/FUEL switch/light is pressed in

Question 11

APU OVERSPEED warning message is displayed when RPM exceeds:

Answer 11

106%

Question 12

Where is the APU located?

Answer 12

Tail one

Question 13

APU intake door is located:

Answer 13

Upper right hand side of aircraft

Question 14

APU secondary function

Answer 14

B and c: supplies bleed air for air conditioning and starting the engine

Question 15

If APU door position is unknown, airspeed is restricted to

Answer 15

220 knots

Question 16

The APU door position is displayed on the

Answer 16

EICAS status page