Fire Protection Systems

Question 1

How can you determine the state of charge of a CO2 fire extinguisher?

Answer 1

By its weight.

Question 2

How can you determine the state of charge of a freon fire extinguisher container?

Answer 2

By the pressure shown on the built-in gauge.

Question 3

How does the ambient temperature affect the pressure shown on the pressure gauge on a freon fire extinguisher?

Answer 3

The higher the temperature, the higher the pressure.

Question 4

How can you determine whether or not a built-in fire extinguishing system has been discharged?

Answer 4

By checking the blowout plugs on the outside of the aircraft near the extinguisher agent bottles.

Question 5

What is indicated if the red disc in a built-in fire extinguishing system is blown out?

Answer 5

The agent bottle has been discharged because of an overheat condition.

Question 6

What is indicated if the yellow disc in a built-in fire extinguishing system is blown out?

Answer 6

The agent bottle has been discharged by the flight crew actuating the Bottle Discharge switch.