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Which of the following is used for the direct measurement of surface quality and commonly used in U.S.A.?

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Which of the following is used for the direct measurement of surface quality and commonly used in U.S.A.?

(a) Profilometer

(b) Tomlinson surface meter

(c) Talysurf

(d) Replica method

I have been asked this question in an international level competition.

This intriguing question originated from Surface Roughness topic in chapter Measurement of Surface Finish of Engineering Metrology

1 Answer

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Correct answer is (a) Profilometer

The best I can explain: Profilometer is most commonly used in U.S.A. It is used for direct measurement of surface quality. It is a dynamic instrument and principle is similar to the gramophone pick-up.

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