Question

Which of the following statement is not suitable to reduce error produced by temperature variation?

(a) Increase rate of air flow

(b) Increase the frequency of variation of temperature

(c) Increase the amplitude of temperature variation

(d) Redesign masters and comparators

This question was posed to me in an online quiz.

Query is from Conditions of Comparison in chapter Standards of Measurements of Engineering Metrology

Answer 1

Correct choice is (c) Increase the amplitude of temperature variation

The best explanation: Decrease in an amplitude of temperature variation is a factor to reduce error produced by temp variations. Redesigning of masters and comparators may reduce this error by balancing time cons. and coefficient of expansion with part to be measured.