When checking the accuracy of a flat surface against a datum surface, there will theoretically be more than three points on the flat surface touching the datum surface (gage).

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Seatra Russell · Accepted Answer

Final Answer : False, Explanation :  In theory, when checking the accuracy of a flat surface against a datum surface, only three points on the flat surface will be in perfect contact with the datum surface. This is because three points define a plane, and any additional points would not necessarily touch unless the surfaces are perfectly flat and parallel.

When checking the accuracy of a flat surface against a datum surface, there will theoretically be more than three points on the flat surface touching the datum surface (gage).

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