Fire Detection and Protection

Question 1

What is required to generate a Main Deck smoke warning if

one of the Loop switches in a zone is selected off?

Answer 1

Only the remaining loop (A or B) in that zone is required to

detect smoke

Question 2

What must occur for the APU fire detection system to

generate a fire signal?

Answer 2

If one loop is selected OFF, the remaining operable sensor in
the active loop must sense an excessive temperature rise to
generate a fire signal.

Question 3

What indicates smoke in the Minimum Equipment Bay?

Answer 3

Red SMOKE light on the MIN EQPT circuit breaker panel

Question 4

The primary purpose of the Sniffer Fan is to provide

confirmation of smoke in what part of the aircraft?

Answer 4

Avionics compartment and Minimum Equipment Bay.

Question 5

In the Fire Protection system, what is the difference between
the two lower cargo fire bottles?

Answer 5

Bottle #2 is metered (up to 30 min), bottle #1 empties

immediately

Question 6

What is the minimum power source needed to discharge a

cargo fire extinguishing bottle?

Answer 6

Hot Battery Bus

Question 7

The lower cargo compartments have what type of fire

detecton/protection?

Answer 7

Automatic smoke detection and manual fire extinguishing

Question 8

What is different in the fire protection systems of the main

deck and lower cargo compartments?

Answer 8

Lower cargo has fire extinguishing bottles, main deck does not

Question 9

What fire protection system is provided for the Main Cargo

Deck?

Answer 9

Fire can only be suppressed by cutting off airflow, there are no
fire extinguishers available

Question 10

What strategy does the A300 use for fire protection?

Answer 10

Two fire bottles per engine and two fire bottles for all lower
cargo compartments

Question 11

What does the APU fire protection system consist of?

Answer 11

One fire bottle powered by the DC ESS bus

Question 12

When the aircraft is on the ground and an APU fire is detected,
what will also occur?

Answer 12

The APU is automatically shut down and after a 10 second

delay, the fire bottle is automatically discharged

Question 13

How many bottles of fire extinguishing agent are each engine

and lower compartments equipped with?

Answer 13

Two bottles per engine and two bottles for all lower cargo

compartments

Question 14

What is the minimum power source needed to discharge an

engine fire extinguishing bottle?

Answer 14

Hot Battery Bu

Question 15

What does the fire detection loop arrangement of the engine

consist of?

Answer 15

Dual loops of three elements each

Question 16

What must occur for the engine fire detection system to

generate a fire signal?

Answer 16

If both loops are working, both loops must sense an excessive
temperature rise to generate a fire signal.

Question 17

When the Engine Fire Detection System is operating in single

loop mode, when will an engine fire be detected?

Answer 17

If any of the three elements of the remaining loop senses an

excessive temperature rise, a fire signal is generated

Question 18

After an engine fire is detected, when will the lights in the
Engine Fire Handle extinguish?

Answer 18

Once the fire is no longer detected

Question 19

What does the APU fire detection loop arrangement consist

of?

Answer 19

Two loops of one element each.

Question 20

What happens when smoke is detected by the main deck

smoke detection systems?

Answer 20

The Air Conditioning system closes valves to isolate the cargo
compartment