CHST CHST - Construction Health and Safety Technician Hazardous Materials and Chemical Safety Questions and Answers 2

Question 1

Under OSHA's asbestos standard for construction (29 CFR 1926.1101), what is the permissible exposure limit (PEL) for asbestos?

Accepted Answer

0.1 f/cc as an 8-hr TWA

Answer

0.1 f/cc as a 30-min STEL

Answer

1.0 f/cc as an 8-hr TWA

Answer

0.01 f/cc as an 8-hr TWA

Question 2

Which class of asbestos work under 29 CFR 1926.1101 involves the removal of asbestos-containing thermal system insulation (TSI)?

Accepted Answer

Class I

Answer

Class II

Answer

Class III

Answer

Class IV

Question 3

What does RCRA stand for in the context of hazardous waste management?

Accepted Answer

Resource Conservation and Recovery Act

Answer

Regulated Chemical Removal and Assessment

Answer

Risk Control and Remediation Authority

Answer

Restricted Chemical Release Act

Question 4

According to OSHA HazCom 2012, signal words used on labels are limited to:

Accepted Answer

Warning and Danger

Answer

Caution and Warning

Answer

Notice, Caution, and Warning

Answer

Danger, Warning, and Caution

Question 5

What is a Threshold Limit Value–Ceiling (TLV-C) as defined by ACGIH?

Accepted Answer

A concentration that should not be exceeded at any instant during the workday

Answer

The maximum concentration a worker can be exposed to continuously for 8 hours

Answer

The highest exposure allowed over a 15-minute short-term period

Answer

The level below which no adverse health effects are expected over a lifetime

Question 6

Which type of air-purifying respirator is appropriate for protection against organic vapors and acid gas hazards?

Accepted Answer

Combination OV/acid gas cartridge

Answer

N95 filtering facepiece

Answer

HEPA filter cartridge

Answer

Powered air-purifying respirator with P100 filters