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Process Control and Instrumentation

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

Over damped
Under damped
Critically damped
None of these

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Process Control and Instrumentation
Measurement of pressure in ammonia reactor is done by

Pirani guage
Bourdon gauge
Inclined tube manometer
U-tube manometer

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Process Control and Instrumentation
A control system has the following transfer function F(s) = (s - 1)(s + 1)/s(s - 2)(s + 4)The initial value of the corresponding time function is

-1
1
44020
43838

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

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

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Process Control and Instrumentation
Bourdon gauges are used for measuring pressure (kg/cm² )

< atmospheric
< 2 (gauge)
> 2 (gauge)
> 10 (absolute)

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Process Control and Instrumentation
Transfer function of transportation lag is

ETS
None of these
E-TS
1/(TS + 1)

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