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Process Control and Instrumentation

Process Control and Instrumentation
Routh stability method uses __________ loop transfer function.

Closed
Open
Neither A nor B
Either A or B

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Process Control and Instrumentation
The transfer function of a process is 1/(16s² + 8s + 4). If a step change is introduced into the system, then the response will be

Under damped
None of these
Critically damped
Over damped

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Process Control and Instrumentation
The amplitude ratio for the sinusoidal response of __________ is < 1.

Transportation lag
First order system
Second order system
None of these

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Process Control and Instrumentation
__________ are analysed using a polarograph.

Isotonic solutions
Liquids
Solids
Gases

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

Open weir
Kennison nozzle
Pitot tube
Vane meter

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Process Control and Instrumentation
Which of the following thermocouple materials does not contain nickel?

None of these
Chromel
Alumel
Constantan

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