Question

What is the least count of dial indicators which can be calibrated using passmeter?

(a) 0.01 mm

(b) 0.03 mm

(c) 0.05 mm

(d) 0.07 mm

I have been asked this question in an internship interview.

Enquiry is from Calibration of Linear and Angular Measuring Instruments topic in chapter Testing and Calibration of Gauges and Dynamic Measurement of Engineering Metrology

Answer 1

The correct option is (a) 0.01 mm

The best I can explain: The dial indicators of least count 0.01 mm can be calibrated by using passmeter or by micrometer dial comparator of least count 0.002 mm. The dial indicators can also be calibrated using slip gauges.