Engineering Metrology MCQs

Question 1

In a sine bar the standard length is measured from

Accepted Answer

Between the centres of two rollers

Answer

Edge to edge

Answer

Between inner circumference of two rollers

Answer

Between outer circumference of two rollers

Question 2

Electronic level instrument is a replacement for

Accepted Answer

Spirit level.

Answer

Vernier depth gauge

Answer

Auto-collimator

Answer

Angle dekkor

Question 3

Polygons in metrology are concerned with

Accepted Answer

Method of circular dividing et

Answer

Testing of parallelism

Answer

Testing of circularity

Answer

Interferrometry measurements

Question 4

the long straight edges are supported at two points for minimum deflection at centre. The distance between supports compared to the length of straight edge should be

Accepted Answer

0.554

Answer

0.5

Answer

0.577

Answer

0.6

Question 5

Bevel protractor is used for

Accepted Answer

Angular measurements

Answer

Linear measurements

Answer

Height measurements

Answer

Flatness measurement

Question 6

Clinometer is related with

Accepted Answer

Spirit level

Answer

Engineer's parallels

Answer

Angle gauges

Answer

Bevel protractor

Question 7

Which of the following is the essential condition for interferometry measurement

Accepted Answer

All of the above.

Answer

An air gap (a wedge) of varying thickness must exist between the two surfaces

Answer

The work surface must be reflective

Answer

Monochromatic source of light is required

Question 8

Autocollimator is used for

Accepted Answer

Angular measurement

Answer

Parallelism measurement

Answer

Straightness measurement

Answer

Flatness measurement

Question 9

Which one of the following is an angle measuring device

Accepted Answer

Sine bar.

Answer

Tranunel

Answer

Divider

Answer

Angle iron