Fire Extinguishers

Question 1

Fires are classified based on type of fuel. What class of fire has flammable liquids as fuel?

Answer 1

Class B.

Question 2

A class C fire involves:

Answer 2

Energized electrical equipment.

Question 3

What type of fire involves ordinary combustible materials such as paper and wood?

Answer 3

Class A.

Question 4

How are fire extinguishers labeled to indicate what type of fire they are appropriate for?

Answer 4

Pictograms and class of fire they are appropriate for.

Question 5

What indicates that a fire extinguisher is NOT appropriate for a specific class of fire?

Answer 5

The pictogram for the class will be included with a black background for “NO” and a red slash.

Question 6

Which types of fire extinguishers are appropriate for use aboard aircraft?

Answer 6

Water and halogenated agent.

Question 7

True or False? Halogenated Agent extinguishers are considered to be more effective and have a greater range than Carbon Dioxide extinguishers.

Answer 7

True. In addition, they’re suitable for cold temperature and do not leave a residue behind.

Question 8

Which type of extinguisher should ONLY be used on Class D fires?

Answer 8

Dry powder.

Question 9

Where would you find the record of the last visual inspection conducted on a fire extinguisher?

Answer 9

The inspection tag log on the extinguisher.

Question 10

How often is hydrostatic testing required for Halon extinguishers?

Answer 10

12 years.

Question 11

When should a rechargeable fire extinguisher be recharged?

Answer 11

After use or when otherwise needed.

Question 12

For a typical workplace or building, such as a hangar, the travel distance to a Class A or D fire extinguisher should not be more than:

Answer 12

75 feet.

Question 13

All aircraft are required to carry at minimum:

Answer 13

A fire extinguisher in the flight deck.

Question 14

How often should the fire extinguisher aboard aircraft be checked to ensure they’re secured and ready for use?

Answer 14

During every preflight inspection.

Question 15

For aircraft with interior access to the cargo compartment, where should the fire extinguisher be located?

Answer 15

At the interior of the entrance.

Question 16

The P in P.A.S.S. means to:

Answer 16

Pull the pin at the top of the extinguisher.

Question 17

The A in P.A.S.S stands for Aim the nozzle or hose of the extinguisher at:

Answer 17

The base of the fire. This is where the fuel is actually burning.

Question 18

During a flight, you smell smoke and fumes but do not see an obvious fire. How would you go about locating the hidden fire?

Answer 18

Search the aircraft using the back of your hand to feel for heat behind wall panels and doors.

Question 19

True or False? The biggest hazard caused by a fire is the fire itself.

Answer 19

False. More deaths from fire are caused by smoke inhalation than burns.

Question 20

Impaired judgement occurs when oxygen levels drops to:

Answer 20

17 percent

Question 21

What is the most common cause of fire on an aircraft?

Answer 21

Electrical wiring and failure of electrical components.

Question 22

When discharging a Halon fire extinguisher on an unpressurized aircraft, how low should the aircraft descend in order to increase oxygen concentration?

Answer 22

8,000 feet or as low as practical.

Question 23

In the industry recommended procedure to put out a lithium battery fire, what should be done after extinguishing the fire?

Answer 23

Cool down the device and let rest untouched for 15 minutes.

Question 24

Which of the following is the most ideal method to extinguish a lithium battery fire?

Answer 24

Water Extinguisher.

Question 25

If you have a burning, smoking, or hot device, should you put it into a thermal runaway bag immediately?

Answer 25

No, the FAA does not recommend crewmembers moving any device until it is completely cooled.

Question 26

Since ensuring the device stays cool is critical, the FAA states that containment products should be capable of:

Answer 26

Holding liquid so that the device can be submerged during storage.

Question 27

The FAA states that the most effective cooling of an unstable PED occurs when:

Answer 27

Liquid gets inside the device.