Mechanical Measurement and Metrology (3141901) MCQs

MCQs of Introduction to Metrology, Linear and Angular Measurement

Showing 31 to 40 out of 81 Questions
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31.
what is the least count of micrometer.
(a) 0.002
(b) 0.2
(c) 0.02
(d) 0.1
Answer:

Option (c)

32.
The lost motion of the spindle in micrometer screw gauge when the rotation of the thimble is changed in direction is referred to as
(a) wear
(b) least count
(c) backlash
(d) total error
Answer:

Option (c)

33.
What is the purpose of using a ratchet screw in the micrometer screw gauge?
(a) To maintain uniform measuring pressure
(b) To reduce wear of screw threads
(c) Both the above
(d) None of the above
Answer:

Option (a)

34.
If the spindle of the micrometer does not move by rotating the thimble then the instrument is said to have _____
(a) zero error
(b) positive error
(c) backlash error
(d) negative error
Answer:

Option (c)

35.
Depth micrometer is a special micrometer used to measure
(a) the depth of holes
(b) the depth of grooves and recesses
(c) the height of shoulders or projections
(d) all of these
Answer:

Option (d)

36.
In an outside micrometer _______ turns open the anvils by exactly 1.00 mm
(a) half
(b) one
(c) two
(d) one and half
Answer:

Option (c)

37.
Circular scale on micrometer is marked on
(a) anvil
(b) barrel
(c) thimble
(d) ratchet
Answer:

Option (c)

38.
While taking a measurement with the help of a Micrometer, which two parts of a Micrometer are used to hold the specimen?
(a) Spindle and Anvil
(b) Spindle and Ratchet
(c) Anvil and Ratchet
(d) Anvil and Barrel
Answer:

Option (a)

39.
Which of the following is incorrect about micrometers?
(a) Thimble and barrel should have a dull finish
(b) Total travel of the measuring spindle is called measuring range
(c) The graduated surface diameter of the barrel should be 5 mm
(d) A screw has 10 or 20 threads per cm
Answer:

Option (c)

40.
How many divisions are graduated on thimble?
(a) 20
(b) 25
(c) 45
(d) 50
Answer:

Option (d)

Showing 31 to 40 out of 81 Questions
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