FREE Certified Industrial Hygienist (CIH) MCQ Questions and Answers

Question 1

The beta, gamma, and x-rays are measured with this instrument:

Accepted Answer

Geiger-Muller

Answer

Dosimeters

Answer

Radmeters

Answer

Geigle-Mueller

Question 2

A radiation accumulation measurement film badge is known as a:

Accepted Answer

Dosimeters

Answer

Radmeter

Answer

Geiger-Muller

Answer

Geigle-Mueller

Question 3

Which of the following methods for reducing or removing exposure to occupational health risks is most effective?

Accepted Answer

Administrative controls

Answer

Personal Protective Equipment

Answer

Inspections and audits

Answer

Engineering controls

Question 4

Paper cannot be penetrated by this radiation because it is so faint.

Accepted Answer

alpha-particles

Answer

neutrons

Answer

gamma-rays

Answer

beta-radiation

Question 5

Which two consequences can be arbitrarily separated from a substance's action?

Accepted Answer

acute and chronic

Answer

minor and major

Answer

expected and unexpected

Answer

lethal and nonlethal

Question 6

Non-ionizing radiation's detrimental effects on the body are mostly determined by:

Accepted Answer

frequency

Answer

variation

Answer

intensity

Answer

duration

Question 7

It is very useful to substitute or replace harmful materials with innocuous ones.

Accepted Answer

engineering control

Answer

administrative control

Answer

technical control

Answer

industrial control

Question 8

This undetectable low frequency radiation is used in diathermy, radar, communications, and cooking.

Accepted Answer

microwave

Answer

infrared

Answer

laser

Answer

ultraviolet

Question 9

The skin's top layer is impermeable to this invisible low frequency radiation:

Accepted Answer

infrared

Answer

laser

Answer

microwave

Answer

ultraviolet

Question 10

Around electric arcs, this type of radiation can be found, and it needs opaque shielding:

Accepted Answer

ultraviolet

Answer

infrared

Answer

laser

Answer

microwave