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Process Control and Instrumentation

Process Control and Instrumentation
On-off controllers are normally used for

Flow rate changes
Low loads
Temperature changes
None of these

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Process Control and Instrumentation
Maximum differential pressure in liquid manometer is __________ psi.

50
30
20
40

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Process Control and Instrumentation
Zirconia probe is used for the continuous measurment of __________ flue gases going out of the furnace.

Carbon dioxide in
Temperature of
Oxygen in
Carbon monoxide in

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Process Control and Instrumentation
Continuous shell temperature measurement in a liquid-liquid heat exchanger is done by a

Vapor pressure thermometer
Mercury in glass thermometer
Reistance thermometer
Thermocouple

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Process Control and Instrumentation
What is the Laplace transform of impulse input having magnitude 'X' ?

X²
X
1/X
1

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Process Control and Instrumentation
Non-metallic diaphragm used as pressure sensor in instruments is generally made of

Teflon
Bakelite
Synthetic rubber
Thick paper

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