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Process Control and Instrumentation

Process Control and Instrumentation
Which of the following is a 'contact' pyrometer?

Resistance pyrometer
Radiation pyrometer
Infra red pyrometer
Optical pyrometer

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Process Control and Instrumentation
Dilute wine was used as a thermometric liquid initially to develop temperature scale. First emperical temperature scale developed was the __________ scale.

Centigrade
Fahrenheit
Reaumer
Kelvin

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Process Control and Instrumentation
Compositional analysis of __________ is done using mass spectrometer.

An alloy
Natural gas
An isotope
A solid

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Process Control and Instrumentation
Typical specifications for design stipulates the gain margin and phase margin to be respectively

< 1.7 and < 30°
> 1.7 and < 30°
< 1.7 and > 30°
> 1.7 and > 30°

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Process Control and Instrumentation
Thermal conductivity measurement com-prises the working principle of a

Polarimeter
Spectrometer
Chromatograph
CO₂ analyser

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Process Control and Instrumentation
In an exothermic chemical reactor, the manipulated variable is the flow rate of

Coolant
None of these
Reactants
Product

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