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Process Control and Instrumentation

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

Sling psychrometer
Chromatograph
Mass spectrometer
Polarimeter

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Process Control and Instrumentation
Liquid flow rate in an open channel can not be measured by a/an

Cipolletti weir
V-notch
Rectangular weir
Orifice meter

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Process Control and Instrumentation
Liquid discharge from a tank or reservoir can not be measured by

Notches
Weirs
Orificemeters
Mouthpieces

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Process Control and Instrumentation
Which of the following judges the accuracy of an instrument?

Static error
Dead zone
None of these
Drift

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Process Control and Instrumentation
With increase in temperature, the electrical conductivity of the platinum used in the resistance thermometer

Increases
Decreases
Remains constant
Increases exponentially

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Process Control and Instrumentation
The function of a transducer is to

Amplify the input signal
Convert the primary signal into a more useful quantity, usually an electric impulse
Codify/decodify the input signal
Modify the input signal

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