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Process Control and Instrumentation

Process Control and Instrumentation
Mercury thermometer can be used to measure the temperature upto __________ °C.

350
250
750
100

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Process Control and Instrumentation
Pick out the first order system from among the following.

Mercury in glass thermometer kept in boiling water
Non-interacting system of two tanks in series
Interacting system of two tanks in series
Damped vibrator

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Process Control and Instrumentation
A bolometer is

Neither A nor B Here
Both A & B Here
Used for the measurement of thermal radiation
An element which senses optical input and delivers thermal output

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

Steel
Vycor (a glass)
Inconel
Nichrome

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Process Control and Instrumentation
__________ type of element is normally not used in the bimetallic thermometers.

Single helix
Multiple helix
Bourdon tube
Flat spiral

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Process Control and Instrumentation
Stroboscope is used for the measurement of

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

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