Question

If work tolerance is less than 0.09 mm then how much wear tolerance is applied to ‘Go’ gauge?

(a) 10%

(b) 20%

(c) 30%

(d) 40%

The question was posed to me by my school teacher while I was bunking the class.

This intriguing question comes from Gauge Design topic in chapter Limits, Fits and Gauges of Engineering Metrology

Answer 1

Correct choice is (a) 10%

To explain: There is no need of giving allowance for wear when work tolerance is less than 0.09 mm. But, if work tolerance is more than 0.09 mm then 10% tolerance is only given to the ‘Go’ gauge for wear.