Oral Bank - FIRE PROTECTION & DETECTION

Question 1

How many ENGINE fire extinguishers are provided?

Answer 1

2 on each wing (4 total)

Question 2

FIRE CARGO FWD: Pressing FWD cargo fire ARM switch causes what actions? (4)

Answer 2

• Two packs shut off
• Arms lower cargo compartment fire extinguishers
• Configures equip cooling to override mode. Turns off all airflow and heat into lower cargo compartments
• closes master trim air valve

Question 3

How many fire extinguisher bottles are provided for the forward and aft lower cargo compartments?

Answer 3

4 bottles (2 bottles discharge immediately, 2 bottles discharge after delay)

Question 4

How many APU fire bottles are provided?

Answer 4

1

Question 5

What action discharges the APU fire extinguisher?

Answer 5

Rotating the APU fire switch

Question 6

Can you shut down the APU from outside the A/C?

Answer 6

Yes, APU fire protection panel in right body gear well

Question 7

Is there smoke detection provided for the crew rest area?

Answer 7

Yes

Question 8

What happens when you push the CARGO FIRE Depressurisation Switch with the MAIN deck fire switch ARMED?

Answer 8

Initiates A/C depressurisation (main deck fire suppression, 2 packs off, equip cooling closed loop and shuts off airflow, closes master trim air valve)

Question 9

What unlocks an engine fire switch? (3)

Answer 9

• Fire warning
• Fuel control switch CUTOFF
• Pushing the fire override switch

Question 10

Is the engine fire/overheat detection system a single or dual loop system?

Answer 10

Dual loop

Question 11

What does arming the FWD CARGO fire switch do on the Passenger A/C? (4)

Answer 11

• Arms cargo fire extinguishers
• Equip cooling into override mode and airflow and heat turns off to FWD compartment
• Turns off pack 3
• Turns off nitrogen generation system

Question 12

How many fire extinguisher bottles are provided for fire fighting in the FWD and AFT cargo compartments on the 747-8 A/C?

Answer 12

6