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Units, Devices, Dimensions and Measurements mcq questions and answers for competitive exams

Ramya_naidu

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Units, Devices, Dimensions and Measurements mcq questions and answers for competitive exams UPSC SSC , SSC CGL, SSC CHSL, upsc Civils , Entrance exams Online test practice online free Quiz, mock practice online
91.
Which unit we use to express Nuclear sizes?

a
Tesla
b
Fermi
c
Newton
d
None of above
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92.
Which instrument is used to view two dimensional pictures?

a
Streoscope
b
Tachometer
c
Stroboscope
d
Tangent Galvanometer
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93.
What is unit of Astronomical distance?

a
light year
b
angstrom
c
weber
d
lux
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94.
Which instrument is used to determine the speed of an aircraft in terms of speed of sound?

a
Machmeter
b
Manometer
c
Micrometer
d
Magnetometer
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95.
Which instrument is used to measure the scattering of light by particles suspended in a liquid?

a
Ohmmeter
b
Ondometer
c
Pyrometer
d
Nephetometer
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96.
What is unit of Thermal Conductivity?

a
coulomb
b
joule per kilogram per Kelvin
c
newton second per square meter
d
watt per meter per degree celcius
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97.
What are audible sound waves?

a
Having frequency less than 20 Hz
b
Having frequency more than 20000 Hz
c
Having frequency between 20 Hz to 20000 Hz
d
None of above
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98.
Energy is measured in

a
Blu
b
Btu
c
Bhu
d
All
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99.
Which instrument is used to measure refractive indices?

a
Radar
b
Salinometer
c
Refractometer
d
Radio micrometer
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100.
Which instrument is used to determine the density and coefficient of expansion of liquids?

a
Periscope
b
Polygraph
c
Pykometer
d
Photometer
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101.
What is the range of mercury thermometer?

a
0 degree Celsius to 350 degree Celsius
b
-10 degree Celsius to 350 degree Celsius
c
-20 degree Celsius to 350 degree Celsius
d
-30 degree Celsius to 350 degree Celsius
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102.
Noise is measured in which units?

a
Decibels(dB)
b
PPB
c
NTU
d
Joule
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103.
Name of the instrument to measure recordings of atmospheric pressure?

a
Callipers
b
Bolometer
c
Barograph
d
Barometer
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Discuss
104.
Which instrument is used to measure very high temperature?

a
Ohmmeter
b
Ondometer
c
Pyrometer
d
Nephetometer
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Discuss
105.
Name of the instrument is used to measure heat radiation?

a
Callipers
b
Bolometer
c
Barometer
d
Barograph
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