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Process Control and Instrumentation

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

Thick paper
Synthetic rubber
Bakelite
Teflon

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Process Control and Instrumentation
Meleoid gauge measures the __________ pressure.

Very high
Sub-atmospheric
Atmospheric
Positive

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Process Control and Instrumentation
Relationship between absorption/evolution of heat at the thermocouple junctions and the current flow in the circuit is given by __________ effect.

None of these
Thomson
Peltier
Seebeck

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Process Control and Instrumentation
A mercury barometer measures the __________ pressure.

Atmospheric
Gauge
Vacuum
Absolute

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Process Control and Instrumentation
The offset introduced by proportional controller with gain Kc in response of first order system can be reduced by

None of these
Introducing integral control
Introducing derivative control
Reducing value of Kc

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Process Control and Instrumentation
Nitrogen gas constant volume thermometer is suitable for measuring a temperature of __________ °C.

> 50
> 100
< 0
0-100

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