BA Fire Behaviour Training (2 Day Refresher)

Question 1

What make up the three sides of the ‘Triangle of Fire’? (The 3 elements that take part in the chemical reaction of combustion)

Answer 1

O2
Fuel
Heat/Energy

Question 2

When opening a door during ‘Door Procedure’ what 2 words are used to describe its movement?

Answer 2

‘Towards’ or ‘Away’

Question 3

The RB101 Branch is the smaller Firefighting branch carried on LFB Appliances which has a red handle. How many Litres Per Minute (LPM) settings does it have?

Answer 3

4

Question 4

Is a Deflagration a subsonic or supersonic occurrence?

Answer 4

Deflagration - Subsonic

Detonation - Supersonic

Question 5

Which one of the following conditions is needed for a ‘Backdraught’ to occur?
A) High level ‘Neutral Plane’ in the compartment
B) A poorly ventilated fire

Answer 5

B

Question 6

What does LEL stand for?

Answer 6

Lower Explosive Limit

Question 7

Is PYROLYSIS;
A)The efficient burning of fuel or
B)The decomposition of a substance by heat?

Answer 7

B) The decomposition of a substance by heat

Question 8

The Fireman’s definition of a ‘FLASHOVER’ is “A fire in a room becomes a room on fire”. What is the correct definition of the term?

Answer 8

Flashover - ‘A sudden and sustained transition of a growing fire to a fully developed fire’

Question 9

When discovering a staircase how does a member of BA team communicate this to other members of the team?

Answer 9

“STAIRS..STEP BACK”

Question 10

In a compartment fire what comes between the ‘OVER PRESSURE’ and the ‘UNDER PRESSURE’?

Answer 10

The Neutral Plane

Question 11

How many settings does the Thermal Image Camera (TIC) have and what are they?

Answer 11

3 - Hot (red dot), Cold (blue dot) and Default (no dot) selected using the left button

Question 12

Which of the following is an indicator that a flashover may be about to occur:
A) smoke blackened windows
B) high Neutral Plane
C) Rapid Increase in compartment temperature

Answer 12

C) Rapid increase in compartment temperature

Question 13

How does a member of a BA team signal that he has reached the top of a flight of stairs and how is the signal acknowledged?

Answer 13

2 clear claps

Question 14

What is the minimum weight of attack when dealing with a Sub surface fire?

Answer 14

45mm Jet

Question 15

There are 3 main headings that extinguishing methods can be grouped under. What are they?

Answer 15

Direct
Indirect
Gas Cooling

Question 16

What is the correct LPM setting for the RB101 for effective gas cooling?

Answer 16

230 LPM

Question 17

At what angle should the cone on the RB101 be set when putting up a ‘Safety’ pulse?

Answer 17

45 Degrees

Question 18

What water droplet size does the 45 Degree safety setting diffuse (in mm’s)?

Answer 18

0.3 mm

Question 19

What is the definition of combustion?

Answer 19

A chemical reaction between oxygen and a fuel which produces light and heat

Question 20

Prior to ‘Door Entry’ in to a suspected compartment fire what should be done to the door?

Answer 20

A sweep with the TIC (Hinges, Handles, Heat) and 3 squibs with the branch at a 45 Degree setting

Question 21

How long should a ‘Long Pulse’ be?

Answer 21

A count of 2

Question 22

What does UEL stand for?

Answer 22

Upper Explosive Limit

Question 23

What is this the definition of - ‘Ignition of fire gases that have accumulated outside original fire compartment’?

Answer 23

Fire Gas Explosion

Question 24

The RB101 Cone should be set to approximately
A) 10 Degrees
B) 20 Degrees
C) 30 Degrees 
For ‘Long Pulsing’?

Answer 24

C) 30 Degrees

Question 25

Define the term ‘Backdraught’

Answer 25

‘An admission of air to a compartment fire that has limited ventilation with a build-up of fire gases’