Fire BS

Question 1

Pulling Engine fire switch

Answer 1

1. Closes Engine and Spar FUELvalve
2. Closes the related engine BLEED air valve
3. Trips the related Engine GEN
4. Shuts off fluid to the EDP and depressurizes the EDP
5. Arms both fire extinguishers

Question 2

Pulling APU fire switch

Answer 2

1. Arms APU Fire extinguisher bottle
2. closes APU fuel valve
3. Closes APU bleed air valve
4. closes APU air inlet door
5. trips APU gen field and gen breaker
6. shuts down APU if auto shutdown failed

Question 3

Main deck CARGO FIRE ARM switch

Answer 3

1. Enables main deck fire suppression (via depress)
2. turns of two packs
3. Configures Equip Cool to CLOSED LOOP
4. Turns off all airflow to main deck and lower lobes
5. Closes master trim are valve

Question 4

FWD or AFT CARGO FIRE ARM switch

Answer 4

1. Arms lower cargo fire extinguishers
2. Turns of two packs
3. Configures Equip Cool to OVERRIDE
4. Turns off all airflow to lower lobes
5. Closes master trim air valve

Question 5

How many minutes of fire suppression are avail to lower lobes

Answer 5

210 Minutes