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Process Control and Instrumentation

Process Control and Instrumentation
Thermal well made of __________ gives the fastest speed of response, while measuring temperature by thermocouples.

Vycor (a glass)
Steel
Nichrome
Inconel

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Process Control and Instrumentation
Stroboscope is used for the measurement of

Liquid level under pressure
Frequency of light
Rpm of a flywheel
Depression of freezing point

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Process Control and Instrumentation
Phase lag of the sinusoidal response of a first order system is

180°
90°
120°
30°

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

Sulphur dioxide
Oxygen
Carbon dioxide
Carbon monoxide

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Process Control and Instrumentation
Working principle of mercury in glass thermometer is

Volumetric expansion
Pressure rise with temperature
None of these
Linear expansion

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Process Control and Instrumentation
The __________ of a vapor pressure thermometer is a secondary element.

Bourdon tube
Pointer
Bulb
None ofthese

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