Question

when grinding, the operator should not stand __________. * 2 points
a. in direct line with the grinding wheel
b. to the left side of the grinder
c. to the right side of the grinder
d. near the center line of the grinder
grinding wheels which vibrate excessively do so because __________. * 2 points
a. they are out of round
b. the arbor shaft of the grinder is bent
c. both a and b
d. neither a nor b

Explanation:

When grinding, standing in direct line with the grinding wheel is dangerous as fragments could fly directly at the operator. Excessively vibrating grinding wheels can be due to being out - of - round (uneven shape) or a bent arbor shaft which causes imbalance.

Answer:

1. a. in direct line with the grinding wheel
2. c. both a and b