Question

please tell me the answer of the mcq's ​

Answer 1

Answer:

Backlash error occurs in screw gauge, when we try to rotate the screw very fast to measure a reading. then there is some slipping between the different screws instead of the rotation, which gives an incorrect reading, to avoid this we should rotate the screw slowly in only one direction.....

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Answer 2

1. None of these.
2. Distance moved on main scale.