Question

describe in steps how a screw gauge is used to measure the diameter of a wire​

Answer 1

Answer:

By rotating the nut in clockwise or anticlockwise, the screw can be moved either forward or backward. The Pitch of the screw gauge is defined as the distance covered by the screw when it makes one complete rotation between the consecutive threads. It is usually either 1 mm or 0.5 mm.

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Answer 2

Answer:

Place the wire lengthwise over face A and move the face B towards face A using the ratchet head R. Stop when R turns (slips) without moving the screw. Note the number of divisions of the linear scale visible and uncovered by the edge of the cap. The reading (IV) is called linear scale reading (L.S.R.).Nov 22, 2016

Explanation:

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