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Process Control and Instrumentation

Process Control and Instrumentation
Composition of alloys can be determined by

None of these
Polarograph
Refractrometer
Chromatograph

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Process Control and Instrumentation
Working principle of bimetallic thermometers is difference in linear co-efficient of thermal expansion of two strips of different metals welded together. Which of the following has the maximum thermal co-efficient of linear expansion?

Invar
Nickel
Chromel
Brass

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Process Control and Instrumentation
Volumetric expansion is the working principle of the __________ thermometers.

Vapor pressure
Bimetallic
Mercury in glass
Constant volume gas

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Process Control and Instrumentation
In a single tank system, the transfer function of __________ to inlet flow rate is 1/TS+1.

Neither A nor B Here
Level
Outlet flow rate
Both A & B Here

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Process Control and Instrumentation
The unit of 'time constant' of a system is the same as that of

Time
None of these
(time)⁻¹
Velocity

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Process Control and Instrumentation
Working principle of mercury in glass thermometer is

None of these
Volumetric expansion
Linear expansion
Pressure rise with temperature

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