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Process Control and Instrumentation

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

None of these
Manipulated
Load
Controlled

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Process Control and Instrumentation
The root locus plot of the roots of the characteristics equation of a closed loop system having the open loop transfer function K(s + 1)/2(2s + 1)(3s + 1) will have a definite number of loci for variation of K from 0 to ∞. The number of loci is

1
3
2
4

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

Open
Closed
Either A Or B Here
Neither A nor B Here

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

Nyquist
Ruth
Mikhalov
None of these

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Process Control and Instrumentation
Liquid flow rate in an open channel can not be measured by a/an

Cipolletti weir
V-notch
Rectangular weir
Orifice meter

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Process Control and Instrumentation
What is the ratio of output amplitude to input amplitude for a sinusoidal forcing function in a first order system?

1
>1
None of these
< 1

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