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Process Control and Instrumentation

Process Control and Instrumentation
Thermal conductivity measurement com-prises the working principle of a

Polarimeter
CO₂ analyser
Spectrometer
Chromatograph

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Process Control and Instrumentation
Platinum resistance thermometer can be used upto antimony point which is __________ °C, and is the temperature of equilibrium between solid antimony & liquid antimony at normal atmospheric pressure.

630.74
1064.43
1261.93
961.93

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Process Control and Instrumentation
Dilatometer is used to measure

Contraction/expansion due to changes in temperature
Strain
Deflection
Stress

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Process Control and Instrumentation
Dome temperature of blast furnace stove is most accurately measured by a

Iron-constantan thermocouple
Platinum resistance thermometer
Platinum-platinum/rhodium ther-mocuple
Radiation pyrometer

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Process Control and Instrumentation
Which of the following is not a mechanical pressure sensing element?

Bourdon tube
Diaphragm
U-tube
Bellows

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Process Control and Instrumentation
Feed forward controller accounts for the __________ changes.

Set point
Both A & B
Load
Neither A nor B

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