NCCER Core Hand Tools & Power Tools 2

Question 1

What safety device must be functional on a portable circular saw?

Accepted Answer

Lower blade guard that retracts and returns automatically

Answer

A circular saw must have a functioning lower blade guard that retracts when cutting and springs back when done.

Question 2

What is the primary difference between a drill and an impact driver?

Accepted Answer

An impact driver delivers rotational force plus concussive blows

Answer

An impact driver combines rotation with rapid concussive blows for higher torque.

Question 3

Where should the tool rest be positioned on a bench grinder?

Accepted Answer

Within 1/8 inch of the wheel

Answer

The tool rest must be within 1/8 inch of the grinding wheel to prevent work pieces from being pulled in.

Question 4

What should you check before changing a blade on a power tool?

Accepted Answer

That it is unplugged or battery removed

Answer

Always disconnect the power source before changing blades or making adjustments.

Question 5

What power tool is designed to cut metal, masonry, and tile?

Accepted Answer

Angle grinder with appropriate disc

Answer

An angle grinder accepts different discs for cutting and grinding different materials.

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