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Process Control and Instrumentation

Process Control and Instrumentation
Mcleoid gauge is used to measure the

Pressure
Vacuum
Point velocity
Flow rate

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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

Over damped
Critically damped
Under damped
None of these

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Process Control and Instrumentation
In Bode plot, A.R. vs. w is plotted on a/an __________ graph paper.

Log-lag
Triangular
Semi-log
Ordinary

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Process Control and Instrumentation
If response of a control system is to be free of offset and oscillation, the most suitable controller is

Proportional-derivative(PD)controller
Proportional controller
Proportional integral-derivative (PID) controller
Proportional-integral (PI) controller

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Process Control and Instrumentation
Humidity of air can be determined by a

Polarimeter
Chromatograph
Mass spectrometer
Sling psychrometer

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Process Control and Instrumentation
On-off controllers are normally used for

None of these
Low loads
Temperature changes
Flow rate changes

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