NCCER Core Construction Site Safety 3

Question 1

At what noise level (8-hour TWA) does OSHA require a hearing conservation program?

Accepted Answer

85 dB

Answer

OSHA requires a hearing conservation program at 85 dB TWA.

Question 2

What is required before entering a confined space?

Accepted Answer

A confined space entry permit with atmospheric testing

Answer

A permit with atmospheric testing for oxygen, flammable gases, and toxic substances is required.

Question 3

What is the minimum width for a construction site walkway?

Accepted Answer

20 inches

Answer

Construction walkways must be at least 20 inches wide.

Question 4

What type of barricade tape indicates an immediate danger zone?

Accepted Answer

Red danger tape

Answer

Red danger tape indicates immediate hazard — do not cross without authorization.

Question 5

How should compressed gas cylinders be stored?

Accepted Answer

Upright, secured with chains, caps in place when not in use

Answer

Cylinders must be stored upright, secured to prevent falling, with valve caps in place.

NCCER Core - National Center for Construction Education and Research Core Certification Practice Test