ASP Industrial Hygiene and Health 5

Question 1

Which skin absorption route is most significant for lipophilic (fat-soluble) chemicals in an occupational setting?

Accepted Answer

Percutaneous absorption through intact skin

Answer

Absorption through mucous membranes

Answer

Absorption through open wounds only

Answer

Ingestion of skin-deposited material

Question 2

The noise dose for a worker is calculated as 100%. According to OSHA 29 CFR 1910.95, this worker is at the action level requiring which control?

Accepted Answer

Mandatory hearing protection and audiometric testing

Answer

Engineering controls must be immediately implemented

Answer

Administrative controls only

Answer

No action required as the dose equals but does not exceed the PEL

Question 3

Which air-purifying respirator cartridge color code designates organic vapor protection in the US?

Accepted Answer

Black

Answer

Yellow

Answer

Green

Answer

White

Question 4

A wipe sample collected from a worker's hand shows lead contamination. This finding is most directly indicative of which exposure pathway?

Accepted Answer

Ingestion via hand-to-mouth contact

Answer

Inhalation

Answer

Dermal absorption

Answer

Injection

Question 5

Which industrial hygiene control is considered most preferred in the hierarchy of controls?

Accepted Answer

Substitution

Answer

Administrative controls

Answer

PPE

Answer

Engineering controls

Question 6

A chemical with a short biological half-life is best monitored using which biological monitoring timing strategy?

Accepted Answer

End-of-shift sample

Answer

Pre-shift sample on Monday

Answer

48 hours post-exposure

Answer

Weekly random sampling

Question 7

Under OSHA's Hazard Communication Standard (HazCom 2012/GHS), which section of a Safety Data Sheet (SDS) lists occupational exposure limits?

Accepted Answer

Section 8 – Exposure Controls/Personal Protection

Answer

Section 2 – Hazard Identification

Answer

Section 11 – Toxicological Information

Answer

Section 15 – Regulatory Information