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Process Control and Instrumentation

Process Control and Instrumentation
Stalagmometer is used for the measurement of

Optical activity
Kinematic viscosity
Refractive index
Surface tension

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

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

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Process Control and Instrumentation
Flow rate of a river is measured by a/an

Vane meter
Kennison nozzle
Open weir
Pitot tube

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Process Control and Instrumentation
In a feed-back control system G and H denote open loop and close loop transfer functions respectively. The output-input relationship is

G/H
G/(1 + H)
H(1 + G)
H/G

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Process Control and Instrumentation
Liquid column manometers are used for measuring the pressure __________ kgf/cm² .

< 3 (gage)
< 10 (gage)
< atmospheric
> 2(gage)

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Process Control and Instrumentation
__________ are analysed using a polarograph.

Gases
Isotonic solutions
Liquids
Solids

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