

MCQOPTIONS
Saved Bookmarks
1. |
The roll is _________ and the laser beam is moved ________ along the roll. |
A. | Stationary, axially |
B. | Stationary, perpendicularly |
C. | Rotated, axially |
D. | Rotated, perpendicularly |
Answer» D. Rotated, perpendicularly | |