Air Contaminants Training

Question 1

Air contaminants can be created as byproducts of workplace processes. T/F

Answer 1

True

Question 2

______________ are created when volatile liquids evaporate into the air.

a. Mists.
b. Fumes.
c. Gases.
d. Vapors.
e. Dusts.

Answer 2

d. Vapors.

Question 3

One of the air contaminants in our workplace is: _____________________.

Question 4

The term PEL means:

a. Preventable Exposure Level.
b. Practical Exposure Limit.
c. Possible Exposure Level.
d. Permissible Exposure Limit

Answer 4

d. Permissible Exposure Limit

Question 5

If the OSHA standard’s Table Z-1 shows a “C” in front of a substance’s exposure limit, an employee’s exposure _______________.

a. May average twice the exposure limit.
b. Can exceed the exposure limit.
c. Must match the exposure limit at all times.
d. May at no time exceed the exposure limit.

Answer 5

d. May at no time exceed the exposure limit.

Question 6

When a substance has an 8-hour time weighted average (TWA) exposure limit, employee exposures, when averaged over an 8-hour period, may not exceed the 8-hour TWA in any 8-hour work shift of a 40-hour work week. T/F

Answer 6

True

Question 7

If an exposure limit’s value is given in parts per million (ppm), this means that a million parts of the contaminant are allowed for an equivalent million parts of clean air. T/F

Answer 7

False

Question 8

If an exposure limit’s value is given in milligrams per cubic meter, this value represents the weight of the contaminant in one cubic meter of air.

Answer 8

True

Question 9

One of the exposure limits of an air contaminant in our workplace is ________________________.

Question 10

Employers can monitor air contaminant levels by conducting:

a. Chemical sampling and analysis.
b. Biological monitoring.
c. Mass balance calculations.
d. Qualitative testing

Answer 10

a. Chemical sampling and analysis.

Question 11

A chemical sampling survey protocol should include:

a. The purpose of the survey.
b. Where, what, and who to sample.
c. The number of samples to be collected.
d. All of the above.

Answer 11

d. All of the above.

Question 12

“Passive” and “active” are two types of:

a. Exposure limits.
b. Sampling methods.
c. Air contaminants.
d. Respirators.

Answer 12

b. Sampling methods.

Question 13

Air contaminants can be monitored through the use of direct-reading instruments. T/F

Answer 13

True

Question 14

One area in our workplace where air monitoring surveys have been done is _________________.

Question 15

In order for an employer to determine whether or not OSHA’s permissible exposure limits are being met, the employer must know:

a. The results of the air monitoring survey.
b. The employee’s duration of exposure.
c. The molecular weight of the contaminant.
d. Both a. and b.
e. Both b. and c.

Answer 15

d. Both a. and b.

Question 16

If an air contaminant has an 8-hour time weighted average permissible exposure limit of 100 parts per million, an employee who was exposed at a level that averaged 81.25 parts per million during an 8-hour workday was overexposed. T/F

Answer 16

False

Question 17

OSHA’s Air Contaminants standard requires employers to use personal protective equipment as the first choice for protecting employees from overexposures. T/F

Answer 17

False

Question 18

How an airborne hazard is best controlled depends on:

a. The nature of the hazard.
b. The process.
c. The possibility that workers will be exposed.
d. All of the above.
e. None of the above.

Answer 18

d. All of the above.

Question 19

A common engineering control used to control emissions, exposures, and chemical hazards in the workplace is to:

a. Schedule employee rotation.
b. Use respirators.
c. Install ventilation systems.
d. Limit the use of a hazardous chemical.

Answer 19

c. Install ventilation systems.

Question 20

Substitution of a less toxic substance is an example of:

a. An engineering control.
b. An administrative control.
c. A procedure that is not allowed by OSHA’s standard.
d. None of the above.

Answer 20

a. An engineering control.