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Process Control and Instrumentation

Process Control and Instrumentation
Gain margin is equal to the

Gain in P controller
Reciprocal of amplitude ratio
Gain in P-I controller
Amplitude ratio

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Process Control and Instrumentation
A system with transfer function (2S/4S) + 1 is of __________ order.

2nd
Zero
3rd
1st

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Process Control and Instrumentation
Response of a linear control system for a change in set point is called

Frequency response
Regulator problem
Transient response
Servo problem

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Process Control and Instrumentation
In an exothermic chemical reactor, the manipulated variable is the flow rate of

Coolant
None of these
Reactants
Product

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Process Control and Instrumentation
Bode diagram is a plot of

AR vs. log (f) and Φ vs. log (f)
Log (AR) vs. log (f) and (Φ) vs. log (f)
None of these
Log (AR) vs. f and log Φ vs.f

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Process Control and Instrumentation
Polarisation of light forms the working principle of a

Chromatograph
Spectrometer
Polarimeter
Polarograph

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