Engineering Metrology MCQs

Question 1

The vernier reading should not be taken at ? its face value before an actual check has been taken for

Accepted Answer

Zero error

Answer

Its calibration

Answer

Flatness of measuring jaws

Answer

Temperature equalisation

Question 2

Which comparator utilises the principle of a button spinning on a loop of string

Accepted Answer

Aramson comparator

Answer

Sigma comparator

Answer

Optical comparator

Answer

Zeiss interferometer

Question 3

Gear tooth vernier is used to measure

Accepted Answer

Pitch line thickness of tooth.

Answer

Circular pitch

Answer

Tooth thickness

Answer

Addendum and dedendum

Question 4

Error of measuring equipment is

Accepted Answer

(e) the difference between measured value and actual value

Answer

The closeness with which a measurement can be read directly from a measuring instrument.

Answer

A measure of how close the reading is to the true size

Answer

The smallest change in measureand that can be measured

Question 5

Which of the following is not provided on combination set

Accepted Answer

Vernier scale

Answer

Centre head

Answer

Protractor head

Answer

Spirit level

Question 6

Universal surface gauge is used

Accepted Answer

For layout work and inspection

Answer

For flatness testing

Answer

For measuring profile of complex surface

Answer

For measuring surface roughness

Question 7

Accuracy is

Accepted Answer

Agreement of the result of a measurement with the true value of the measured quantity

Answer

The repeatability of a measuring process

Answer

Error of judgement in recording an observation

Answer

The ability of instrument to reproduce same reading under identical situations

Question 8

Random errors follow the following distribution

Accepted Answer

Claussian

Answer

Hyperbolic

Answer

Parabolic

Answer

T-student

Question 9

Which one of the following is the least accurate measuring device

Accepted Answer

Steel scale.

Answer

Air gauge

Answer

Optical projector

Answer

Vernier micrometer