Question

what is meant by pitch and least count of screw gauge​

Answer 1

The smallest reading up to which a screw gauge can be measured is called least count of screw gauge. It can be find out by following method; L.C = pitch of screw gauge ⁄ no.

The pitch of the screw is the distance moved by the spindle per revolution.

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Answer 2

Pitch of the screw gauge = (distance moved by screw)/(no.of rotations given) Least count and Least count of the screw gauge = (pitch)/(total no.of divisions on the circular scale).

Explanation:

• Least count of the screw is defined as the distance moved by the tip of the screw when turned through one division of the head scale.
• The Least count is used to get the accurate readings of an instrument.
• Least count for screw gauge is defined as the minimum measurement on main scale / total number of divisions on circular scale.
• Pitch of the screw gauge is defined as the distance moved by the spindle per revolution.
• Which is measured by moving the head scale over the pitch scale in order to complete one full rotation.

To Learn More...

1.Relation between pitch and least count of screw gauge

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