What is the purpose of ratchet in a screw gauge?

Preventing the spindle from moving further

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Supporting the frame of screw gauge

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Moving the spindle smoothly

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None of the above

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Solution

The correct option is A Preventing the spindle from moving further
The ratchet is kind of limiting mechanism which applies a pressure by slipping at a predetermined torque and thus prevents the spindle from moving further.

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Similar questions

State the purpose of ratchet in a screw gauge.

The thimble of a screw gauge has 50 divisions. The spindle advances 1 mm when the screw is turned two revolutions.

(i) What is the pitch of screw gauge ?

(ii) What is the least count of the screw gauge ?

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