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Process Control and Instrumentation

Process Control and Instrumentation
Dilute wine was used as a thermometric liquid initially to develop temperature scale. First emperical temperature scale developed was the __________ scale.

Fahrenheit
Reaumer
Centigrade
Kelvin

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Process Control and Instrumentation
What is the Laplace transform of sin t ?

S/(s² + 1)
1/(s² - 1)
S/(s² - 1)
1/(s² + 1)

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Process Control and Instrumentation
The __________ of a vapor pressure thermometer is a primary element.

Pointer
None of these
Bourdon tube
Bulb

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Process Control and Instrumentation
Liquid argon level in a pressurised storage tank (at 3 kg/cm² ) is measured by a/an

Gage glass
External float gage
Differential pressure gage
None of these

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Process Control and Instrumentation
Use of I-control along with P-control facilitates

None of these
Reduction of stability time
Elimination of offset
Reduction of offset

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Process Control and Instrumentation
Change of angle of refraction with composition comprises the working principle of a

Spectrometer
Polarograph
Refractrometer
Polarimeter

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