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Which of the following is correct about dial comparator bench micrometer?

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Which of the following is correct about dial comparator bench micrometer?

(a) Not ideal for small precision parts

(b) Immovable anvil

(c) Small thimble

(d) Non rotating spindle

I have been asked this question in final exam.

This key question is from Bench Micrometer topic in portion Linear Measurements of Engineering Metrology

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Best answer
The correct choice is (d) Non rotating spindle

The best explanation: Anvil can be movable. It is mounted on a long guide way. Micrometer screw contains a non- rotating spindle which is precisely grounded.

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