Question

properly support and clamp the work piece before grinding or sanding.
safe
unsafe
question 15 0.5 pts
keep a firm hold on the die grinder while operating and do not set it down until it has come to a complete stop.
safe
unsafe

Explanation:

First Question (Properly support and clamp the work piece before grinding or sanding)

Supporting and clamping the workpiece before grinding/sanding is a standard safety practice to prevent the workpiece from moving, which could cause accidents or poor work quality. So this action is safe.

Holding the die grinder firmly and not setting it down until it stops is a safety measure to avoid the grinder slipping or causing injury due to unexpected movement. This is a safe practice.

Answer:

A. Safe

Question 15 (Keep a firm hold on the die grinder while operating and do not set it down until it has come to a complete stop)