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Process Control and Instrumentation

Process Control and Instrumentation
Polarisation of light forms the working principle of a

Polarograph
Polarimeter
Spectrometer
Chromatograph

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Process Control and Instrumentation
Which is the strongest paramagnetic gas?

O₂
NO
NO₂
CO₂

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Process Control and Instrumentation
Thermocouple is suitable for measuring

Liquid temperatures only
Very high temperatures only
Both high and low temperatures
Very low temperatures only

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Process Control and Instrumentation
The temperature of tempering oil baths maintained at 400°C during heat treatment of steel is measured by a/an __________ thermocouple.

Platinum-platinum/rhodium
Chromel-alumel
Iron-constantan
None of these

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Process Control and Instrumentation
An aneroid barometer measures the __________ pressure.

Absolute
Vacuum
Atmospheric
Gage

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Process Control and Instrumentation
Composition of alloys can be determined by

Chromatograph
Polarograph
Refractrometer
None of these

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