Engineering Metrology MCQs

Question 1

The secondary texture or waviness, or macro-error on surface results due to

Accepted Answer

Vibrations and non-uniformity of cutting process

Answer

Normal action of the tool in production process

Answer

Flaws in material

Answer

Dominant direction of tool marks (lay)

Question 2

The function of a transducer is

Accepted Answer

To convert the primary signal into a more useful quantity usually an electrical impulse

Answer

To amplify the input signal

Answer

To modify the input signal

Answer

To codify the input signal

Question 3

Pick up the correct statement in connection with surface finish.

Accepted Answer

Pitch of secondary texture is more than pitch of primary texture

Answer

Pitch of secondary texture is same as pitch of primary texture

Answer

Pitch of secondary texture is less than pitch of primary texture

Answer

Pitch of primary and secondary texture can't have any relationship

Question 4

If graduations on beam of a vernier gauge are marked at every 1/2 mm and 10 divisions on vernier scale are on a distance of 9.5 mm, then least count is

Accepted Answer

0.05 mm

Answer

0.1 mm

Answer

0.01 mm

Answer

0.02 min

Question 5

Scale sensitivity is defined as

Accepted Answer

Ratio of a change in scale reading to corresponding change in pointer deflection

Answer

Least reading of scale/range of scale

Answer

Least reading of scale/unit measurable quantity

Answer

Least count of scale/range of scale

Question 6

A three-lobed part if checked on 60? V-block would provide following magnification of the radial out-of-round characteristics

Accepted Answer

3 time

Answer

1 time

Answer

2 time

Answer

4 time

Question 7

A five-lobed part, if gauged in the 60? V-block would produce the following magnification of the radial out-of-round characteristics

Accepted Answer

0 time

Answer

1 time

Answer

2 times

Answer

3 times

Question 8

Diametral gauging for out-of-roundness measurement is not sufficient because

Accepted Answer

Radial changes always occur which can't be sensed by it

Answer

It can't sense even lobed parts

Answer

It is difficult to find true centre

Answer

Its readings can't be fed to computer

Question 9

A plug gauge is used for measuring

Accepted Answer

Cylindrical bores

Answer

Cylinders

Answer

Spherical holes

Answer

Screw threads