Mechanical Measurement and Metrology (3141901) MCQs

MCQs of Force, Torque, Pressure, Strain and Temperature Measurement

Showing 11 to 20 out of 24 Questions
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11.
In a Pirani gauge, the pressure is related to the ________.
(a) thermal conductivity of the gas
(b) the volume of the gas
(c) mass transfer of the gas
(d) composition of the gas
Answer:

Option (a)

12.
A McLeod gauge is used to measure _______.
(a) gauge pressure
(b) atmospheric pressure
(c) vacuum pressure
(d) absolute pressure
Answer:

Option (c)

13.
A dead-weight pressure gauge is used for ______.
(a) static pressure measurement
(b) dynamic pressure measurement
(c) high-vacuum measurement
(d) low-volume measurement
Answer:

Option (a)

14.
Strain gauge rosettes are used when the direction of the _________.
(a) principal stress is unknown
(b) hoop stress is known
(c) principal stress is known
(d) hoop stress is unknown
Answer:

Option (a)

15.
Dummy strain gauge are used for __________.
(a) bridge sensitivity enhancement
(b) temperature compensation
(c) determining gauge factor
(d) calibration of strain gauges
Answer:

Option (b)

16.
Strain gauges cannot be used at high temperatures because of ____________.
(a) inferior strain gauge materials
(b) gauge not being properly welded
(c) a problem with a gauge factor
(d) decomposition of cement and carrier materials
Answer:

Option (d)

17.
Temperature gives a measure of _________.
(a) the internal energy of the system
(b) external energy of the system
(c) the total energy of the system
(d) no relationship with energy
Answer:

Option (a)

18.
Current flows through a circuit spontaneously when two dissimilar metals are joined to form a thermocouple, provided the two junctions formed are maintained at different temperatures. This effect is termed as _________.
(a) Thomson effect
(b) Seebeck effect
(c) Rankine effect
(d) Stefan effect
Answer:

Option (b)

19.
Gauge pressure is measured ________.
(a) above the local atmospheric pressure
(b) below the local atmospheric pressure
(c) above the zero absolute pressure
(d) below the zero absolute pressure
Answer:

Option (a)

20.
Total absolute pressure is ________.
(a) greater than atmospheric pressure + gauge pressure
(b) equal to atmospheric pressure + gauge pressure
(c) greater than atmospheric pressure − absolute pressure
(d) equal to atmospheric pressure − absolute pressure
Answer:

Option (b)

Showing 11 to 20 out of 24 Questions
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