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Process Control and Instrumentation

Process Control and Instrumentation
Identify an unbounded input from inputs whose transfer functions are given below

1
1/S
1/S²
1/(S² + 1)

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Process Control and Instrumentation
Zirconia probe is used for the measurement of

% CO₂ in flue gas
Humidity of air
Speed of a submarine
% O₂ in flue gas

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Process Control and Instrumentation
The transfer function of a process is 1/(16s² + 8s + 4). If a step change is introduced into the system, then the response will be

Critically damped
None of these
Over damped
Under damped

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Process Control and Instrumentation
Number of poles in a system with transfer function 1/(s² + 2s² + 1) is

5
3
2
1

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Process Control and Instrumentation
The __________ of a vapor pressure thermometer is a functioning element.

Pointer
Bourdon tube
Bulb
None of these

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Process Control and Instrumentation
A stable system is the one

Which satisfies the conditions for a servo problem
For which the output response is bounded for all bounded input
None of these
Which exhibits an unbounded response to a bounded input

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