Explain how you can determine whether a flatness tolerance is applied to a planar surface or a feature of size.

What will be an ideal response?


ANS:
The location of the flatness tolerance indicates what it is applied to. Where the leader line of a flatness tolerance is directed to a surface, or attached to an extension line from the surface, it indicates that it apples to the feature (surface). Where a flatness tolerance is located beneath or beside a size dimension, it indicates that it applies to the feature of size.

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