J&B Ch. 6

Question 1

Smoke at a building fire is created by:

Answer 1

incomplete combustion and pyrolitic decomposition.

Question 2

An item that is releasing a mix of particulates and aerosols as well as gases is referred to as:

Answer 2

off-aggregating.

Question 3

In revising the classic four stages of fire development, the phase that has been expanded upon is:

Answer 3

growth

Question 4

In which phase of a compartmentalized fire do conditions exist where open flaming decreases because smoke production displaces and limits available combustion air, although heating continues to produce smoke?

Answer 4

Ventilation-limited phase

Question 5

Sucking or puffing of smoke from an open door or window is a warning for:

Answer 5

explosive growth.

Question 6

Turbulent smoke flow that has filled a compartment can be a warning sign for:

Answer 6

flashover

Question 7

Increasing smoke speed can be a warning sign for:

Answer 7

flame-over.

Question 8

True or False: Smoke volume by itself tells you quite a lot about a fire.

Answer 8

False

Question 9

Two forces cause smoke to pressurize in a building: smoke volume or:

Answer 9

convection heat.

Question 10

Which characteristic in the acronym VVDC is best used as the predictor of how bad things are going to be?

Answer 10

Density

Question 11

Unfinished wood gives off a distinctive smoke as it approaches mid- to late-stage heating. What makes it distinctive?

Answer 11

It is brown.

Question 12

Black fire is:

Answer 12

smoke that is high-volume, has turbulent velocity, is ultradense, and is deep black.

Question 13

The thicker the smoke is:

Answer 13

the more explosive it becomes.

Question 14

The third step of the Three-Step Process for Reading Smoke is:

Answer 14

Determine the rate of change of each attribute.

Question 15

True or False: Simply reading literature on how to read smoke does not make one a smoke-reader; a useable, on-scene skill takes practice.

Answer 15

True