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Process Control and Instrumentation

Process Control and Instrumentation
Load cells are used for the measurement of

Weight
Strain
Stress
Velocity

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Process Control and Instrumentation
Flow rate of those fluids which are insensitive to changes in their density, viscosity or flow velocity profile can be best measured by a

Pitot tube
Flow nozzle type flowmeter
Turbine flowmeter
Magnetic flowmeter

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Process Control and Instrumentation
Emf developed by a thermocouple, while measuring a temperature of 600°C is about 5.5 mV. The type of thermocouple used is

Either A, B or C
Platinum-platinum+rhodium
Iron-constantan
Chromel-alumel

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Process Control and Instrumentation
A stable system is the one

None of these
For which the output response is bounded for all bounded input
Which exhibits an unbounded response to a bounded input
Which satisfies the conditions for a servo problem

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Process Control and Instrumentation
In a shell and tube heat exchanger, the inlet temperature of heating/cooling fluid is the __________ variable.

None of these
Controlled
Manipulated
Load

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Process Control and Instrumentation
Minute depression of freezing point of a liquid solvent on addition of a solid solute can be best measured by a

Dilatometer
Bimetallic thermometer
Beckman thermometer
Mercury thermometer

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