McqMate
| Q. |
Which of the following is the direct measure of surface finish in Wallace surface dynamometer? |
| A. | time of swing |
| B. | angle of swing |
| C. | length of swing |
| D. | height of swing |
| Answer» A. time of swing | |
| Explanation: in the case of wallace surface dynamometer, if the surface to be tested is smooth, there will be less friction and pendulum swings for a longer time period. so, time of swing of pendulum is a direct measure of surface finish. | |
View all MCQs in
Metrology and MeasurementsNo comments yet