Electrical

Question 1

Engine overheat and fire protection are powered by…

Answer 1

Battery bus

Question 2

Fire extinguishing system powered by…

Answer 2

Hot Battery bus

Question 3

Main wheel well fire detection powered by…

Answer 3

Ac transfer bus 2

Question 4

Cargo fire detection powered by…

Answer 4

Dc bus 1 and Dc bus 2

Question 5

What powers the left igniters?

Answer 5

The associated Ac transfer bus

Question 6

What powers the right igniters?

Answer 6

AC standby bus

Question 7

Which is the power source for the left IRS?

Answer 7

AC standby bus and switched hot battery bus

Question 8

Which is the power source for the right IRS?

Answer 8

AC transfer bus 2 and switched hot battery bus. Dc power is removed after 5 minutes

Question 9

What powers the isolation valve?

Answer 9

Ac transfer bus 1

Question 10

What is the power source of the manual mode motor for the outflow valve?

Answer 10

Battery bus

Question 11

What powers the engine fuel shutoff valves?

Answer 11

DC Battery bus

Question 12

What is the power source of the PACK VALVES?

Answer 12

The battery bus

Question 13

Power source of the spar shutoff valves?

Answer 13

Hot battery bus

Question 14

Se puede operar el APU con el switc de batería off?

Answer 14

No! Por q no se cuenta con energía para la ECU.

Question 15

Como operan los recirculation fans?

Answer 15

In flight :

Either pack in high—- left fan stops
Both packs in high—-right fan stops

On the ground:

Both packs in high—-left fan stops
Right fan always works

Question 16

How do you manually open the overboard exhaust valve..?

Answer 16

the overboard exhaust valve is driven open if either pack switch is in high and the right recirculation fan is off. This allows for increased ventilation in the smoke removal configuration.