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Process Control and Instrumentation

Process Control and Instrumentation
Flow rate of sludge is not measured by a/an

Orificemeter
Open weir
Kennison nozzle
Both B & C

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Process Control and Instrumentation
The operation of a rotameter is based on

Pressure at a stagnation point
Pressure drop across a nozzle
Variable flow area
Rotation of a turbine

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Process Control and Instrumentation
Continuous shell temperature measurement in a liquid-liquid heat exchanger is done by a

Thermocouple
Reistance thermometer
Mercury in glass thermometer
Vapor pressure thermometer

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Process Control and Instrumentation
Continuous measurement of moisture content of paper in paper industry is done by measuring the

Electrical resistance through the paper
Thermal conductivity through the paper
Magnetic susceptibility
None of these

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Process Control and Instrumentation
The offset introduced by proportional controller with gain Kc in response of first order system can be reduced by

Reducing value of Kc
None of these
Introducing derivative control
Introducing integral control

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Process Control and Instrumentation
Thermal conductivity measurement is used for the determination of

CO₂ percentage in the flue gas
Specific gravity of petrofuels
Composition of an alloy
O₂ percentage in the flue gas

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