Mechanical Measurement and Metrology (3141901) MCQs

MCQs of System of Limits, Fits, Tolerance and Gauging

Showing 61 to 69 out of 69 Questions
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61.
The principle of operation of LVDT is based on the variation of
(a) self inductance
(b) mutual inductance
(c) reluctance
(d) permanence
Answer:

Option (b)

62.
The application of LVDT is
(a) joint motion
(b) finger movement
(c) limb movement
(d) heart wall motion
Answer:

Option (c)

63.
Which of the following statements is true for LVDT?
(a) It is a mutual capacitive transducer
(b) Which of the following statements is true for LVDT? Presence of hysteresis gives high repeatability
(c) It can measure displacement and pressure
(d) All of the above
Answer:

Option (c)

64.
Reed comparator is a _________ comparator.
(a) pneumatics
(b) mechanical
(c) electrical
(d) electro-mechanical
Answer:

Option (b)

65.
What is the use of bleed valve in flow type pneumatic comparator?
(a) Zero adjustment
(b) Measurement of size
(c) Connect passage of air from plastic tube to gauging head
(d) Used with pressure reducing unit
Answer:

Option (a)

66.
Which of the following is not correct for pneumatic comparator?
(a) Independent of operator skill
(b) Loss of accuracy due to gauge wear
(c) Speedy operation
(d) Total life cost is less
Answer:

Option (b)

67.
Which of the following is true for Pneumatic sensitivity in pneumatic comparators?
(a) Directly proportional to operating pressure
(b) Inversely proportion to operating pressure
(c) Directly proportional to geometrical area of orifice
(d) Independent of area of orifice and operating pressure
Answer:

Option (a)

68.
Working principle of optical comparator
(a) reflection of light
(b) refraction of light
(c) interference of light
(d) none of these
Answer:

Option (a)

69.
Which color of light is filtered by filter present in Zeiss Ultra-optimeter?
(a) Red
(b) Blue
(c) Green
(d) Yellow
Answer:

Option (c)

Showing 61 to 69 out of 69 Questions
4 5 6 7