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Process Control and Instrumentation

Process Control and Instrumentation
Characteristic equation is the denominator of __________ loop transfer function.

Neither A Nor B Here
Both A & B Here
Closed
Open

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Process Control and Instrumentation
Bimetal strips are not used in

Bimetallic thermometers
Relays for opening & closing of electrical circuits
Thermocouples
Thermostats

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Process Control and Instrumentation
Paramagnetism method is not used for the composition determination of __________ in gases.

Any of these
Oxides of nitrogen
Carbon dioxide
Oxygen

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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

Magnetic flowmeter
Turbine flowmeter
Flow nozzle type flowmeter
Pitot tube

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Process Control and Instrumentation
Flow rate through an orifice is __________ the pressure differential.

Inversely proportional to the square root of
Proportional to
Proportional to the square root of
Inversely proportional to the square of

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Process Control and Instrumentation
Which of the following flow-metering instru-ments is an areameter?

Hot wire anemometer
Rotameter
Pitot tube
Venturimeter

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