Question

Which of the following is used for checking the perpendicular distance from the graduated face of a beam to the graduated face of vernier?

(a) Angle gauge

(b) Vernier depth gauge

(c) Feeler gauge

(d) Slip gauge

The question was asked in a national level competition.

The origin of the question is Vernier Height Gauges in section Linear Measurements of Engineering Metrology

Answer 1

Right answer is (c) Feeler gauge

To explain I would say: It is measured with a 0.1 mm feeler gauge. Vernier depth gauges are used to measure the depth of holes and recesses.