CHST CHST - Construction Health and Safety Technician Hazardous Materials and Chemical Safety Questions and Answers 3

Question 1

Under OSHA's Process Safety Management (PSM) standard (29 CFR 1910.119), what quantity of flammable liquids in a single process triggers PSM coverage?

Accepted Answer

10,000 pounds

Answer

1,000 pounds

Answer

5,000 pounds

Answer

25,000 pounds

Question 2

What is the correct hierarchy of controls for chemical hazards, listed from most to least preferred?

Accepted Answer

Elimination → Substitution → Engineering → Administrative → PPE

Answer

PPE → Administrative → Engineering → Substitution → Elimination

Answer

Administrative → Engineering → Substitution → PPE → Elimination

Answer

Engineering → Administrative → PPE → Substitution → Elimination

Question 3

Which section of the SDS contains information about safe storage requirements for a chemical?

Accepted Answer

Section 7

Answer

Section 5

Answer

Section 10

Answer

Section 13

Question 4

A construction worker is exposed to a chemical with a vapor pressure of 450 mmHg at 20°C. What does this indicate about the hazard?

Accepted Answer

The chemical evaporates rapidly and can quickly reach hazardous air concentrations

Answer

The chemical has low flammability

Answer

The chemical is a solid at room temperature

Answer

The chemical has a very high flash point

Question 5

What OSHA standard requires a written Chemical Hygiene Plan in laboratories that use hazardous chemicals?

Accepted Answer

29 CFR 1910.1450

Answer

29 CFR 1910.1200

Answer

29 CFR 1926.59

Answer

29 CFR 1910.119

Question 6

Under OSHA's Hazard Communication Standard, employers must ensure that workers have access to SDSs:

Accepted Answer

At all times during their work shift

Answer

Only during initial training on a chemical

Answer

Only when requested from the safety officer

Answer

Within 24 hours of a written request