1.5 - TECHNICAL FIRES SMOKE & SOOT - FIRE MODULE

Question 1

Some fires, but not all can be categorized in what two ways?

Answer 1

1. Fast burn - small simple particles
2. Slow burn - large, complex particles, more staining & odour

Question 2

What is the significance of oxygen starved fires?

Answer 2

1. Slow burn, smouldering.
2. Incomplete combustion
3. More complex restoration work
4. More aerosols
5. Slower movement & so more time to become absorbed by structed & contents

Question 3

What are the residues likely to be in oxygen starved fires?

Answer 3

1. More odorous
2. More likely to stain
3. Stickier
4. ‘Wet’ from smoke aerosols, for these reasons they are harder to deal with

Question 4

What are the significance of oxygen rich fires?

Answer 4

1. More complete combustion
2. Smaller, less complex particles
3. Less time to be absorbed into structure/contents

Question 5

Protein fires?

Answer 5

1. Do not always have to involve ignition
2. Produce yellow/light brown residues - hard to see
3. Unpleasant odour - hard to restore

Question 6

What are the typical contamination parts in a building?

Answer 6

1. Doorways
2. Enclosed spaces
3. Exterior surfaces
4. Horizontal surfaces
5. Areas when connection occurs

Question 7

What is the biggest problem with smoke damage?

Answer 7

1. Time.