Firefighter Foam Extinguishing Agents Quiz

Play an AI-generated podcast conversation about this lesson

What should firefighters use to extinguish liquid fuels that are not water-soluble?

Appropriate foam or chemical agent (correct)

Fire extinguisher

Water

Sand

Why is it important for firefighters to use the appropriate foam or chemical agent?

To add color to the fire

To produce smoke for visibility

To increase the temperature of the fire

To create a barrier between the fuel and oxygen (correct)

Which type of fuel would NOT be effectively extinguished using water?

Alcohol

Wood

Petrol (Gasoline) (correct)

Kerosene

What could happen if a firefighter uses water to extinguish a non water-soluble liquid fuel fire?

The fire will spread faster (D) Signup and view all the answers

Which of the following is a wise approach for firefighters dealing with non water-soluble liquid fuel fires?

Use appropriate foam or chemical agents as required (D) Signup and view all the answers

What is the main cause of vertical movement in convection?

Buoyancy of smoke and fire gases (D) Signup and view all the answers

Which factor can lead to convection occurring in any direction?

Buoyancy of smoke and fire gases (A) Signup and view all the answers

Why does convection primarily involve vertical movement?

Due to the buoyancy of smoke and fire gases (B) Signup and view all the answers

What role does buoyancy play in convection?

Driving vertical movement (A) Signup and view all the answers

In convection, what is the primary reason for the upward movement of smoke and fire gases?

Buoyancy forces (B) Signup and view all the answers

What can happen in large fires in terms of radiated heat?

It can ignite buildings or fuel packages far away (B) Signup and view all the answers

How does radiated heat behave in large fires towards surrounding structures?

It poses a risk of igniting buildings at a distance (B) Signup and view all the answers

In large fires, what is the effect of radiated heat on distant structures?

It can start fires in buildings far away (C) Signup and view all the answers

What is a potential consequence of radiated heat from large fires?

Igniting structures located at a distance (C) Signup and view all the answers

How might radiated heat impact buildings or fuel packages in a large fire?

By causing ignition at a considerable distance (C) Signup and view all the answers

What has the use of plastics and other synthetic materials done to the fuel load in different occupancies?

Dramatically increased the fuel load (D) Signup and view all the answers

How has the fuel load been affected by the increased use of plastics in occupancies?

Increased dramatically (B) Signup and view all the answers

Which material has contributed to a significant increase in the fuel load in occupancies?

Plastics (A) Signup and view all the answers

In what way has the fuel load changed due to the use of plastics and synthetic materials?

Increased significantly (C) Signup and view all the answers

What effect has the use of plastics and synthetic materials had on the fuel load in occupancies?

Dramatically increased it (D) Signup and view all the answers

What happens when a compartment fire enters the incipient stage?

Radiant heat warms the adjacent fuel and continues pyrolysis. (C) Signup and view all the answers

What effect does radiant heat have on the adjacent fuel in the incipient stage of a compartment fire?

It warms the fuel and continues pyrolysis. (D) Signup and view all the answers

In the early stages of a compartment fire, what role does radiant heat play in relation to adjacent fuel?

It warms the fuel and continues pyrolysis. (B) Signup and view all the answers

How does radiant heat affect adjacent fuel as a compartment fire progresses into the incipient stage?