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Process Control and Instrumentation

Process Control and Instrumentation
Polarisation of light forms the working principle of a

Polarograph
Spectrometer
Chromatograph
Polarimeter

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Process Control and Instrumentation
Radiation thermometer can not measure the temperature

Of moving objects at high temperature
Of an object without coming in contact with it
Inside a pressure vessel
Of liquid oxygen

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Process Control and Instrumentation
Continuous shell temperature measurement in a liquid-liquid heat exchanger is done by a

Mercury in glass thermometer
Thermocouple
Reistance thermometer
Vapor pressure thermometer

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Process Control and Instrumentation
What is the ratio of output amplitude to input amplitude for a sinusoidal forcing function in a first order system?

< 1
None of these
>1
1

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Process Control and Instrumentation
What is the normal percentage of rhodium in platinum + rhodium element used in the thermocouple?

0.1
3
29
13

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Process Control and Instrumentation
Which of the following filled system expansion thermometers has the lowest positive temperature measurement capability?

Alcohol in glass thermometer
Nitrogen in steel thermometer
Fused metal (Na or K) in steel thermometer
Mercury in glass thermometer

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