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Process Control and Instrumentation

Process Control and Instrumentation
The second order system with the transfer function 4/(S² + 2S + 4) has a damping ratio of

2.0
4.0
1.0
0.5

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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
Emf generated in a thermocouple depends on the temperature

Difference between cold junction and atmospheric temperature
Difference between hot and cold junctions
Of hot junction only
Of cold junction only

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Process Control and Instrumentation
Thermocouple is suitable for measuring

Very low temperatures only
Both high and low temperatures
Liquid temperatures only
Very high temperatures only

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Process Control and Instrumentation
A system with a double pole at the origin is unstable since the corresponding term in the time domain

Grows exponentially with time
Is a constant
Grows linearly with time
Decays linearly with time

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

Venturimeter
Rotameter
Orificemeter
Flow nozzle

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MORE MCQ ON Process Control and Instrumentation

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