CHST FREE Construction Health and Safety Technician Questions and Answers 5

Question 1

Under OSHA 1926.502(d), when a worker is using a body harness in a personal fall arrest system, the total fall distance (including deceleration) must not exceed:

Accepted Answer

12 feet

Answer

The total fall distance including deceleration distance cannot exceed 12 feet under OSHA 1926.502(d).

Question 2

Which document establishes the minimum safety and health requirements for a permit-required confined space entry program?

Accepted Answer

OSHA 29 CFR 1910.146

Answer

OSHA 29 CFR 1910.146 covers permit-required confined spaces and is applied to construction via 1926.21 reference.

Question 3

Which type of fire extinguisher is most appropriate for a Class D (combustible metal) fire at a construction site?

Accepted Answer

Dry sand or Met-L-X powder

Answer

Class D fires involving combustible metals like magnesium require specialized dry powder agents such as Met-L-X, not standard extinguishers.

Question 4

What is the OSHA permissible exposure limit (PEL) for silica (respirable crystalline) in construction under 29 CFR 1926.1153?

Accepted Answer

50 µg/m³ as an 8-hour TWA

Answer

OSHA's PEL for respirable crystalline silica in construction is 50 µg/m³ as an 8-hour time-weighted average.

Question 5

A safety technician observes workers using a powder-actuated tool without wearing hearing protection. Under OSHA standards, this tool requires hearing protection because noise levels typically exceed:

Accepted Answer

90 dBA

Answer

OSHA's 1926.52 action level is 90 dBA for an 8-hour TWA; powder-actuated tools often exceed this threshold.

CHST - Construction Health and Safety Technician Practice Test

CHST - Construction Health and Safety Technician Practice Test

CHST FREE Construction Health and Safety Technician Questions and Answers 5