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Process Control and Instrumentation

Process Control and Instrumentation
Concentration of sugar solution can be determined by the

Polarimetry
Oscillometry
Flame photometry
Emission spectroscopy

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

Polarograph
Dilatometer
Refractrometer
Polarimeter

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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
Continuous measurement of specific gravity of a liquid is done by

Contact-type electric indicators
Both A and C
Displacement meter
Hydrometer

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Process Control and Instrumentation
Smoke density of the flue gas going out of the chimney is measured by a

Thermal conductivity meter
Chromatograph
Polarograph
Photo electric cell

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Process Control and Instrumentation
Dead zone is the

None of these
Same as time constant
Maximum change in the variable that does not change the reading of the instrument
Same as transportation lag

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