NCCER - National Center for Construction Education and Research Construction Site Safety Basics Questions and Answers

Question 1

A worker is tasked with using a chemical solvent to clean some equipment.
Before using the product, where should the worker look to find detailed information about the chemical's hazards, handling procedures, and required personal protective equipment?

Accepted Answer

The product's Safety Data Sheet (SDS)

Answer

The tool crib checkout form

Answer

The project manager's daily report

Answer

The equipment manufacturer's user manual

Question 2

When setting up a portable extension ladder to access a roof, what is the minimum distance the top of the ladder must extend above the point of support (e.g., the edge of the roof)?

Accepted Answer

3 feet (0.9 meters)

Answer

1 foot (0.3 meters)

Answer

5 feet (1.5 meters)

Answer

It must be exactly even with the edge.

Question 3

A personal fall arrest system (PFAS) includes a full-body harness, a lanyard, and an anchor point. For the system to function correctly during a fall, where should the D-ring on the full-body harness be positioned?

Accepted Answer

In the middle of the back, between the shoulder blades

Answer

Centered on the chest

Answer

At the waist, near the hip

Answer

On the lower back

Question 4

A competent person inspects an excavation daily. In the absence of a soil analysis, which of the following soil types must all excavations be treated as?

Accepted Answer

Type C

Answer

Type A

Answer

Type B

Answer

Solid Rock

Question 5

An electrician is about to perform maintenance on a piece of equipment that is hardwired to the building's power. Which of the following procedures is critical to perform to protect the worker from the unexpected release of hazardous energy?

Accepted Answer

Lockout/Tagout (LOTO)

Answer

Ground Fault Circuit Interruption (GFCI)

Answer

Job Safety Analysis (JSA)

Answer

Assured Equipment Grounding Conductor Program (AEGCP)

Question 6

While walking through a construction site, you notice a cluttered walkway with extension cords running across the path, a pile of scrap lumber with nails sticking out, and a puddle of water from an unknown source. These are all examples of what?

Accepted Answer

Unsafe conditions

Answer

Standard operating procedures

Answer

A designated staging area

Answer

Acceptable risks