Part I

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Noise:
Humans typically hear in what frequency range?

5 to 5,000 Hz
20 to 20,000 Hz
2 to 20 kHz
20 to 20,000 kHz

General Sciences:
Which term describes the transformation of a material from the solid state to a gaseous state?

Vaporization
Conjugation
Sublimation
Volatization

Heat Stress:
WBGT combines the effect of which of the following?

Humidity
Temperature
Air Velocity
Radiant Heat
All of the above

General IH:
A HEPA filter’s effectiveness is:

97.0% for particles 0.3 µm
99.7% for particles 3.0 µm
99.97% for particles 0.3µm
99.97% for particles 0.03 µm

IH Sampling:
Breakthrough volume of solid sorbents tends to be/have _____ for higher sampling flow rates.

Lower
Higher
No change
Not enough information to determine

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