Question

Which of the following is incorrect for the gauging faces of snap gauges?

(a) Parallel to each other

(b) Square to each other

(c) Gauging point and work are in same plane

(d) Work and gauging faces are at 60 degree

I got this question by my school teacher while I was bunking the class.

The doubt is from Gauge Design in chapter Limits, Fits and Gauges of Engineering Metrology

Answer 1

The correct answer is (d) Work and gauging faces are at 60 degree

To elaborate: Gauging faces of a gap and snap gauges are square and parallel to each other. If gauging diameter of component is larger than gap setting then it will produce welding action may lead to distortion in gauge are incorrect interpretation of reading.