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Process Control and Instrumentation

Process Control and Instrumentation
The temperature range for which copper resistance thermometer can be used is __________ °C

0 to 150
-200 to 150
500 to 900
350 to 750

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Process Control and Instrumentation
__________ are analysed using a polarograph.

Gases
Solids
Isotonic solutions
Liquids

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Process Control and Instrumentation
Working principle of radiation pyrometer is based on the

Wien's law
Stafan-Boltzman law
Kirchoffs law
Seebeck effect

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Process Control and Instrumentation
Continuous measurement of moisture in paper is done by

Sling psychrometer
Hair-hygrometer
Weighing
High resistance Wheatstone's bridge circuit

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Process Control and Instrumentation
Working principle of mercury in glass thermometer is based on the __________ of mercury with increase in temperature.

Volumetric expansion
Differential linear expansion
Increase of thermal conductivity
Increase of pressure

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Process Control and Instrumentation
Response of a system to a sinusoidal input is called __________ response.

Unit step
None of these
Impluse
Frequency

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