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Which of the following technique is used to measure the profile of cams on numerical controlled CMM?

(a) Scanning technique

(b) Searching technique

(c) Standing technique

(d) Sorting technique

I got this question in an internship interview.

My question is based upon Numerical Controlled Coordinate Measuring Machines in portion Measuring Machines & Total Quality Management of Engineering Metrology

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Right option is (a) Scanning technique

The best explanation: The profile or form of cams and cutting dies, etc., can be measured on numerical controlled CMM by a scanning technique. This technique takes about 50 measurements and processes them every second.

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