Fire Systems

Question 1

Define hazard

Answer 1

Potential damage/ harm

Question 2

Define risk

Answer 2

The chance or probability that a person will be harmed or experience and adverse health effect if exposed to a hazard

Question 3

Water fire extinguisher

Answer 3

Do not use on liquid, electrical or metal fires

2 white stripes

Question 4

Powder fire extinguisher

Answer 4

Do not use on metal fires

1 blue line

Question 5

Foam fire extinguisher

Answer 5

Do not use on electrical or metal fires

1 white/yellow line

Question 6

Carbon dioxide fire extinguisher

Answer 6

Do not use on metal fires

1 black line

Question 7

Double-knock system

Answer 7

Gives 10 minutes delay from detection from one detector before evacuating the building, giving security a chance to check out the fire

Question 8

Where should detectors be placed?

Answer 8

At the top of the shaft or flue like structure

Within 1.5 m of penetration on each floor

Question 9

Smoke detector

Answer 9

7.5 m from all points of the ceiling

Question 10

Heat detectors

Answer 10

5.3 m from any points

Question 11

Flow time

Answer 11

Time taken to get the non trained occupants out of the building

Question 12

How wide should a fire escalate be?

Answer 12

At least 1 metre