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Process Control and Instrumentation

Process Control and Instrumentation
Dilatometer is used to measure

Stress
Deflection
Contraction/expansion due to changes in temperature
Strain

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Process Control and Instrumentation
Nickel percentage in invar which is an iron-nickel alloy, and is used as a thermocouple material is

68
36
12
54

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Process Control and Instrumentation
Thermal conductivity cell is the primary element of a/an __________ analyser.

Carbon monoxide
Sulphur dioxide
Oxygen
Carbon dioxide

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Process Control and Instrumentation
Which of the following thermometers is not suitable for distant reading upto 60 metres?

Constant volume gas thermometer
Mercury in glass thermometer
Resistance thermometer
Vapor pressure thermometer

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Process Control and Instrumentation
An emf of the order of mV is generated when two solutions of different hydrogen ion concentration are separated by a thin glass wall. This is the working principle of a

Chromatograph
Polarograph
PH meter
Polarimeter

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Process Control and Instrumentation
__________ temperature scale assigns 0° to the 'ice point' and 80° to the 'steam point'

Rankine
Farenhite
Celcius
Reumur

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