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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.

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

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Process Control and Instrumentation
The open loop transfer function of a control system is KR/(1 + TS) . This represents

A first order system
A second order system
A first order time lag
Dead time system

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

Regulator problem
Frequency response
Transient response
Servo problem

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Process Control and Instrumentation
Composition of natural gas is determined by the

Haldane apparatus
Chromatograph
Mass spectrometer
Both B and C

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Process Control and Instrumentation
Which of the following thermocouples can measure the maximum temperature?

Tungsten-molybdenum
Platinum-rhodium
Chromel-alumel
Iron-constantan

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Process Control and Instrumentation
A control system is unstable, if the open loop frequency response exhibits an amplitude ratio exceeding unity at the crossover frequency. This is __________ criterion.

Nyquist
None of these
Routh stability
Bode stability

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