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Combustible Dust Awareness – AP4289E

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1

If possible you should use compressed air to clear dust away from electrical outlets.

True
False

2

Metal dusts are never combustible.

True
False

3

How fine does dust need to be before it becomes combustible?

The thickness of a dime
The size of a typewrite period (.)
The size of table salt
The width of a human hair

4

It is okay to dry sweep a combustible dust as long as you wear a mask.

True
False

5

Which element is not part of the Dust Explosion Pentagon?

Heat
Confinement
Dispersion
Separation

6

What do we call it when dust becomes mixed with oxygen?

Dispersion
Depression
Confinement
Contamination

7

OSHA has identified more than how many materials that pose a risk for a dust explosion.

5
28
130
1000

8

Dust explosions happen when dust is mixed with oxygen and comes in to contact with ____________?

Another type of dust
Heat
Vapor capture hoods
Duct work

9

The three ingredients necessary to start a fire are:

Heat, Fuel, Dust
Heat, Dust, Confinement
Heat, Fuel, Oxygen
Heat, Fire, Dust

10

In a dust explosion what acts as the fuel source?

Fire
Heat
Dust
Oxygen