what do you mean by zero error of A Screw gorge? How is it accounted for?
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When the fixed stud A and movable stud B are brought in contact without applying any under pressure , and the zero of the circular scale does not coincide with the refference line, there is a zero error.
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Answered by
1
When the fixed stud A and movable stud B are brought in contact without applying any under pressure , and the zero of the circular scale does not coincide with the refference line, there is a zero error.
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