FCTC Fire Behavior and Service Terminology 2

Question 1

Which class of fire involves flammable liquids such as gasoline or paint thinner?

Accepted Answer

Class B

Answer

Class B fires involve flammable and combustible liquids and gases, including gasoline, diesel, oil, paint, and propane.

Question 2

'Flashover' during a building fire occurs when:

Accepted Answer

Radiant heat causes all combustible materials in a room to ignite simultaneously

Answer

Flashover is the transition phase where radiant heat from the fire causes all exposed combustible surfaces in a room to reach ignition temperature and ignite simultaneously.

Question 3

The 'two-in, two-out' rule requires that:

Accepted Answer

Two firefighters enter a hazardous area together while two remain outside ready to assist

Answer

The two-in, two-out rule mandates that at least two firefighters enter a hazardous environment together and two standby outside, prepared to rescue them if needed.

Question 4

'Ventilation' in a firefighting context means:

Accepted Answer

Removing heat, smoke, and toxic gases from a structure to improve conditions for firefighters and victims

Answer

Ventilation involves creating openings in a structure to allow heat, smoke, and combustion gases to escape, improving visibility and reducing temperatures for interior crews.

Question 5

A 'back draft' is most likely to occur when:

Accepted Answer

Fresh oxygen enters a superheated, oxygen-depleted space, causing explosive ignition of accumulated gases

Answer

A back draft results when oxygen is suddenly introduced into an oxygen-depleted, superheated space, causing the accumulated combustible gases to ignite explosively.

FCTC Test Practice Test

FCTC Test Practice Test

FCTC Fire Behavior and Service Terminology 2