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Process Control and Instrumentation

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

Bourdon tube
Bulb
Pointer
None ofthese

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Process Control and Instrumentation
Pirani gauge is used for the measurement of

Liquid level under pressure
Very high pressure
Liquid level at atmospheric pressure
High vacuum

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Process Control and Instrumentation
Optical activity of a solution can be determined using a

Refractrometer
Dilatometer
Polarimeter
Polarograph

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Process Control and Instrumentation
Stroboscope is used for the measurement of

Liquid level under pressure
Frequency of light
Depression of freezing point
Rpm of a flywheel

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Process Control and Instrumentation
A proportional controller with a gain of Kc is used to control a first order process. The offset will increase, if

Kc is reduced
Derivative control action is introduced
Integral control action is introduced
Kc is increased

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Process Control and Instrumentation
A bolometer is

An element which senses optical input and delivers thermal output
Both A & B Here
Neither A nor B Here
Used for the measurement of thermal radiation

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