Question

What are the functional dimensions?

(a) Have to be machined and fit with other mating components

(b) Which have no effect on the performance of quality

(c) Need not to be machined to an accuracy of the high degree

(d) Function is more important than accuracy

This question was addressed to me by my college professor while I was bunking the class.

This interesting question is from Tolerances in division Limits, Fits and Gauges of Engineering Metrology

Answer 1

The correct option is (a) Have to be machined and fit with other mating components

Easy explanation: Non-functional dimensions have no effect on the performance of quality of the assembly or component. Non-functional dimensions need not to be machined to higher accuracy.