Question

a good way to check the condition of the grinding wheel on a bench grinder is to ______

○ exceed the maximum rpm rating

○ hold the tool rest against the wheel

○ induce vibration and monitor the wheel’s response

○ perform a ring test on the wheel

Explanation:

To check the condition of a bench grinder's grinding wheel, the ring test is a standard method. Exceeding max RPM is dangerous, holding tool rest against wheel isn't a check, and inducing vibration isn't a typical method. The ring test (tapping the wheel gently and listening for a clear ring) helps identify cracks or damage.

Answer:

D. perform a ring test on the wheel