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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/S
1/S²
1/(S² + 1)
1

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

Pirani guage
Inclined tube manometer
U-tube manometer
Bourdon gauge

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Process Control and Instrumentation
Mass spectrometer is used for the composition analysis of

Isotopes
Alloys
None of these
Solids

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Process Control and Instrumentation
A photo electric device in which the resistance of the metal is directly proportional to the light striking on it, is known as photo-conductive cell. Photoelectric transducers are used for the measurement of those parameters, which can be used to produce variation in

Current
Flux density
Light intensity
Voltage

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Process Control and Instrumentation
__________ controller has the maximum stabilising time.

PI
P
PID
PD

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Process Control and Instrumentation
__________ type of element is normally not used in the bimetallic thermometers.

Bourdon tube
Single helix
Multiple helix
Flat spiral

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