Mechanical Engineering Measurements

ME4I

22443

Multiple Choice Questions (MCQs)

1   Closeness with true value is called as
    (A)   Precision
    (B)   Repeatability
    (C)   Accuracy
    (D)   Readability
[showhide type=”button7c1″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: C [/showhide]
2   The element which converts one form of signal into another form is called as
    (A)   Transmitter
    (B)   Transducer
    (C)   Transformer
    (D)   Translator
[showhide type=”button7c2″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: B [/showhide]
3   Making, checking & adjusting of instrument scale is called as
    (A)   Correction
    (B)   Precision
    (C)   Resolution
    (D)   Calibration
[showhide type=”button7c3″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: D [/showhide]
4   Variable area meter is also called as
    (A)   Pyrometer
    (B)   Rotameter
    (C)   Thermometer
    (D)   Anemometer
[showhide type=”button7c4″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: B [/showhide]
5   The sensitive element in hair hygrometer is
    (A)   Carbon slice
    (B)   Human hair
    (C)   Vibrating tube and sensor
    (D)   Silicon jelly
[showhide type=”button7c5″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: B [/showhide]
6   Overshoot is
    (A)   Ratio of change of output signal to input signal
    (B)   Minimum departure of pointer on steady state
    (C)   Maximum departure of pointer above steady state
    (D)   None of the above
[showhide type=”button7c6″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: C [/showhide]
7   Sling psychrometer is used for measurement of
    (A)   Dry bulb temperature
    (B)   Relative humidity
    (C)   Wet bulb temperature
    (D)   None of the above
[showhide type=”button7c7″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: B [/showhide]
8   Eddy current dynamometer is used for
    (A)   Acoustic measurement
    (B)   Cutting force measurement
    (C)   Angular measurement
    (D)   Shaft power measurement
[showhide type=”button7c8″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: D [/showhide]
9   Which one of the following is used for vibration measurement?
    (A)   Humistor
    (B)   Accelerometer
    (C)   Sling psychrometer
    (D)   Pyrometer
[showhide type=”button7c9″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: B [/showhide]
10   Ultrasonic flow meter works on
    (A)   Propagation of sound wave
    (B)   Propagation of light wave
    (C)   Change of resistivity
    (D)   Change of mutual inductance
[showhide type=”button7c10″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: A [/showhide]
11   Electrodynamic microphone is used for measurement of
    (A)   Sound measurement
    (B)   Liquid level
    (C)   Strain
    (D)   Water flow
[showhide type=”button7c11″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: A [/showhide]
12   Pressure measurement using Bourdon tube pressure gauge is example of
    (A)   Direct measurement
    (B)   Indirect measurement
    (C)   Pressure control measurement
    (D)   Flow control measurement
[showhide type=”button7c12″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: B [/showhide]
13   The degree of closeness with which the measuring instrument indicates or records a changing value of measurement variable input is called as
    (A)   Fidelity
    (B)   Hysteresis
    (C)   Sensitivity
    (D)   Precision
[showhide type=”button7c13″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: A [/showhide]
14   Photo voltaic cell is example of
    (A)   Passive transducer
    (B)   Elastic transducer
    (C)   Active transducer
    (D)   Resistive transducer
[showhide type=”button7c14″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: C [/showhide]
15   In Bourdon tube pressure gauge pressure is connected to
    (A)   Free end of Bourdon tube
    (B)   Both ends together
    (C)   None of the above
    (D)   Fixed end of Bordon tube
[showhide type=”button7c15″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: D [/showhide]
16   The reading is taken in optical pyrometer when
    (A)   Filament is too bright
    (B)   Filament breaks
    (C)   Filament disappears
    (D)   Filament is too dark
[showhide type=”button7c16″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: C [/showhide]
17   Automobile speedometer is
    (A)   Revolution counter
    (B)   Slipping clutch tachometer
    (C)   Centrifugal force tachometer
    (D)   Drag cup tachometer
[showhide type=”button7c17″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: D [/showhide]
18   Which instrument is contact less temperature measuring instrument?
    (A)   Radiation pyrometer
    (B)   Pressure gauge thermometer
    (C)   Platinum resistance thermometer
    (D)   Thermocouple
[showhide type=”button7c18″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: A [/showhide]
19   Which instrument works on principle of mutual inductance
    (A)   Shaft encoder
    (B)   LVDT
    (C)   Quartz thermometer
    (D)   Ultrasonic flowmeter
[showhide type=”button7c19″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: B [/showhide]
20   When instrument gives different reading for same value of input while measured in upscale and in downscale the error is called as
    (A)   Hysteresis
    (B)   Zero drift
    (C)   Random error
    (D)   Environmental error
[showhide type=”button7c20″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: A [/showhide]
21   The difference between true value and measured value is called as
    (A)   Backlash
    (B)   Error
    (C)   Resolution
    (D)   Dead zone
[showhide type=”button7c21″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: B [/showhide]
22   Absolute pressure is
    (A)   Gauge pressure
    (B)   Atmospheric pressure +gauge pressure
    (C)   Atmospheric pressure – gauge pressure
    (D)   None of the above
[showhide type=”button7c22″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: B [/showhide]
23   LVDT works on
    (A)   AC
    (B)   DC
    (C)   Both AC & DC
    (D)   None of the above
[showhide type=”button7c23″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: B [/showhide]
24   The name of instrument where we take readings of dry bulb and wet bulb temperature is
    (A)   Quartz thermometer
    (B)   Hair hygrometer
    (C)   Sling psychrometer
    (D)   Strain gauge
[showhide type=”button7c24″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: C [/showhide]
25   Following instrument is used for speed measurement
    (A)   Bellow
    (B)   Pirani gauge
    (C)   Stroboscope
    (D)   Thermocouple
[showhide type=”button7c25″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: C [/showhide]
26   Following is undesirable characteristic of instrument
    (A)   Accuracy
    (B)   Measuring lag
    (C)   Sensitivity
    (D)   Precision
[showhide type=”button7c26″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: A [/showhide]
27   What is the span of the instrument having range -100 to +100?
    (A)   0
    (B)   200
    (C)   100
    (D)   None of the above
[showhide type=”button7c27″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: B [/showhide]
28   The FET IS
    (A)   Fast forward transformation
    (B)   Fast Fourier transformation
    (C)   Fast force transducer
    (D)   None of the above
[showhide type=”button7c28″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: B [/showhide]
29   In which instrument readability is better
    (A)   Analog
    (B)   Digital
    (C)   Mechanical
    (D)   None of the above
[showhide type=”button7c29″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: B [/showhide]
30   When two dissimilar metals are joined to form a loop and two junctions. If junctions are kept at different temperature emf is generated. This statement is
    (A)   Faradays law
    (B)   Seebeck effect
    (C)   Pyrometry
    (D)   Pascals law
[showhide type=”button7c30″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: B [/showhide]
31   Constantan is alloy of
    (A)   Nickel + chromium
    (B)   Copper + nickel
    (C)   Iron + nickel
    (D)   Nickel + chromium
[showhide type=”button8c1″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: A [/showhide]
32   Thermistor is used for measurement of
    (A)   Steam pressure
    (B)   Temperature
    (C)   Velocity of flowing fluid
    (D)   None of the above
[showhide type=”button8c2″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: B [/showhide]
33   Pressure actuated thermometer is used for measurement of
    (A)   Pressure
    (B)   Temperature
    (C)   Pressure and temperature
    (D)   None of the above
[showhide type=”button8c3″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: B [/showhide]
34   In case of Rota-meter the float material should be
    (A)   Heavier than fluid to be metered
    (B)   Lighter than fluid to be metered
    (C)   Equal specific weight
    (D)   None of the above
[showhide type=”button8c4″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: A [/showhide]
35   In load-cell there is
    (A)   RTD
    (B)   RVDT
    (C)   Strain gauge
    (D)   LVDT
[showhide type=”button8c5″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: C [/showhide]
36   In bimetallic thermometer, the bimetallic strip consists of
    (A)   Two different nonmetals strips
    (B)   Two different metals strips joined together
    (C)   Two metal strips of same material
    (D)   None of the above
[showhide type=”button8c6″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: B [/showhide]
37   Dynamo-meter is used for measurement of
    (A)   Torque Measurement
    (B)   Permeability
    (C)   Force
    (D)   Angular measurements
[showhide type=”button8c7″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: C [/showhide]
38   Sensitivity depends upon
    (A)   Output and input
    (B)   Only output
    (C)   Only input
    (D)   None of the above
[showhide type=”button8c8″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: A [/showhide]
39   The physical form of unit is called as
    (A)   Calibration
    (B)   Error detector
    (C)   Dummy gauge
    (D)   Standard
[showhide type=”button8c9″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: D [/showhide]
40   Precision depends upon
    (A)   Accuracy
    (B)   Conformity of successive readings
    (C)   Range
    (D)   Span
[showhide type=”button8c10″ more_text=”Show Answer” less_text=”Hide Answer”] Answer: Option: B [/showhide]

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