Question

Which of the following is incorrect about end standards?

(a) End of micrometer anvil is the end standard

(b) It is difficult to form 2 parallel surfaces at the end of a bar

(c) Slip gauges were made of more length than legal line standard

(d) It is difficult to heat treat the ends

This question was addressed to me during an online interview.

My question is based upon End Standards topic in chapter Standards of Measurements of Engineering Metrology

Answer 1

Right choice is (c) Slip gauges were made of more length than legal line standard

The explanation: End bars and slip gauges both were made of an equal length to the legal standard. End standards which are used in general measurement applications are very important.