Question

What do you mean by Type-A evaluation of uncertainty?

(a) Involves a series of independent measurements of a quantity

(b) Involves a series of dependent measurements of a quantity

(c) Uncertainty which is characterized using an assumed probability distribution based on information available

(d) Evaluated by judgment of available information

The question was posed to me in an online interview.

My enquiry is from Type A Evaluation of Uncertainty topic in chapter Evaluating Uncertainty in Measurement of Engineering Metrology

Answer 1

Correct answer is (a) Involves a series of independent measurements of a quantity

Explanation: Type-A evaluation of uncertainty is mainly based on repeated observations. Type-A evaluation of uncertainty involves making a series of a large number of independent quantity measurements.