Question

What is the actual deviation?

(a) Algebraic sum between actual size and corresponding basic size

(b) Algebraic difference between actual and corresponding basic size

(c) Average of actual and basic size

(d) Algebraic difference between upper and lower deviation

I have been asked this question in class test.

I'd like to ask this question from Terminology in chapter Limits, Fits and Gauges of Engineering Metrology

Answer 1

Right choice is (b) Algebraic difference between actual and corresponding basic size

The best I can explain: Algebraic difference between a size and a corresponding basic size is called deviation. Limit deviations are upper and lower deviations. Algebraic difference of actual size with basic size is called actual deviation.