Measurement and Measuring Tools fitter trade top 20 mcq

1. Micrometer works on the principle of

nut & bolt.

2. Which one of the following instruments is used to measure accurately the angle of taper?

Vernier bevel protractor.

3. The least count of a vernier caliper is

0.02 mm.

4. To convert the linear motion of the plunger of a dial test indicator to the rotary motion of the pointer, which one of the following mechanisms is used?

Rack and pinion mechanism.


5. Ratchet stop in the micrometer helps to

control the pressure.

6 . The least count of the vernier caliper is equal to

value of 1 M.S.D. - value of 1 V.S.D. 

7. A micrometer has a Positive error of 0.02 mm. What is the correct reading when the micrometer measures 25.41 mm ? 

22.39 mm.

8. A micrometer has a negative error of 0.03 mm. What is the correct reading when the micrometer measures 40.53 mm ?

40.56 mm.


9. Zero error of a 50 - 75 mm outside micrometer can be checked with

Test piece.

10. The value of the smallest division on sleeve of a metric outside micrometer is

 0.50 mm.

11. The value of one division on bevel edge of the thimble of a metric outside micrometer is

0.01 mm.

12. If the zero graduation of the thimble division of an outside micrometer is below the datum line, when the measuring faces of the micrometer are in contact, the error is

negative.

13. A depth micrometer can be used to measure wide range of sizes because

it is equipped with a number of extension rods.

14. In which one of the following micrometers, the graduations on thimble and sleeve are in reversedirection to that of outside micrometer?

Depth micrometer.


15 . The least count of a vernier outside micrometer is

0.001 mm.

16. On which part of the vernier height gauge, are the main scale divisions graduated ?

Beam.


17. While measuring with vernier bevel protractor, which part is used normally as reference surface?

Stock.

18. On which part of the vernier bevel protractor, are the main scale divisions graduated ?

Disc.


19. The value of each vernier scale division of vernier bevel protractor is

1 ° - 55'.

20. The value of each main scale division of vernier bevel protractor is

1°.