Safety Trained Supervisor Basic Industrial Hygiene 2

Question 1

What are the four main routes of entry for hazardous substances?

Accepted Answer

Inhalation, ingestion, absorption, and injection

Answer

The four routes are inhalation, ingestion, absorption through skin/eyes, and injection through wounds.

Question 2

What is the difference between TLV and PEL?

Accepted Answer

TLVs are ACGIH recommended guidelines while PELs are legally enforceable OSHA limits

Answer

TLVs are ACGIH recommended guidelines; PELs are legally enforceable OSHA limits.

Question 3

What type of industrial hygiene hazard is whole-body vibration?

Accepted Answer

Physical hazard

Answer

Whole-body vibration is a physical hazard along with noise, radiation, and temperature extremes.

Question 4

What is the purpose of biological monitoring in industrial hygiene?

Accepted Answer

Measuring the actual dose absorbed by a worker through blood, urine, or exhaled air analysis

Answer

Biological monitoring measures actual internal dose through biological specimens for a complete exposure picture.

Question 5

What does IDLH stand for and why is it significant?

Accepted Answer

Immediately Dangerous to Life or Health requiring evacuation and specialized respiratory protection

Answer

IDLH is the maximum concentration from which a worker could escape within 30 minutes without irreversible effects.

Safety Trained Supervisor Practice Test