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Process Control and Instrumentation

Process Control and Instrumentation
Bourdon tube is never made of

Stainless steel
Phosphor bronze
Monel metal
Cast iron

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Process Control and Instrumentation
Humidity of air can be determined by a

Mass spectrometer
Sling psychrometer
Polarimeter
Chromatograph

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Process Control and Instrumentation
Which of the following relates the absorption & evolution of heat at the junctions of a thermocouple to the current flow in the circuit?

Peltier effect
Joule heating effect
Seebeck effect
Thomson effect

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Process Control and Instrumentation
Zirconia probe is used for the measurement of

Speed of a submarine
% O₂ in flue gas
% CO₂ in flue gas
Humidity of air

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Process Control and Instrumentation
Pyrometry refers to the measurement of temperature

Which is of higher magnitude
Directly
All of these
With the mercurial thermometer upto 350°C

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Process Control and Instrumentation
Which of the following is not classified as a thermo electric pyrometer

Optical pyrometer (disappearing filament type)
Radiation pyrometer
Resistance thermometer
Thermocouple

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