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Process Control and Instrumentation

Process Control and Instrumentation
In a single tank system, the transfer function of __________ to inlet flow rate is 1/TS+1.

Both A & B Here
Outlet flow rate
Neither A nor B Here
Level

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Process Control and Instrumentation
Which of the following is not a composition measuring instrument?

Thermal conductivity cell
Hot wire anemometer
Mass spectrometer
Polarograph

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Process Control and Instrumentation
The closed loop pole of a stable second order system could be

Both real and positive
Both real and negative
One real positive and the other real negative
Complex conjugate with positive real parts

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Process Control and Instrumentation
In Bode plot, Φ vs ω is plotted on a/an __________ graph paper.

Ordinary
Log-log
Semi-log
Triangular

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Process Control and Instrumentation
Which of the following is not a differential pressure flow meter?

Flow nozzle
Rotameter
Venturimeter
Orificemeter

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Process Control and Instrumentation
Find the ultimate gain and frequency for a proportional controller in the case of a process having the transfer function Gp(s) = 1/(4s + 1)(2s + 1)(s + 1).

W = √(7/6), Kc = 46/3
W = 1/√14, Kc = 45/7√14
W = 1, Kc = 13
W = √(7/8), Kc = 45/4

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