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Process Control and Instrumentation

Process Control and Instrumentation
Gas chromatography is used for the measurement of

Pressure
Temperature
Concentration
Flow rate

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Process Control and Instrumentation
Characteristic equation is the denominator of __________ loop transfer function.

Both A & B Here
Open
Neither A Nor B Here
Closed

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Process Control and Instrumentation
Out of the following temperature measuring instruments, the measurement accuracy will be minimum for the

Optical pyrometer
Iron-constantan thermocouple
Alcohol filled thermometer
Mercury in glass thermometer

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Process Control and Instrumentation
Which of the following temperature measuring instruments need not touch the object whose temperature is being measured?

Radiation/infrared pyrometer
Mercury in glass thermometer
Thermo electric pyrometer
Filled system thermometer

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Process Control and Instrumentation
Instrumentation in a plant offers the advantage of

All of these
Greater operation economy
Better quality of product
Greater safety of operation

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Process Control and Instrumentation
Working principle of disappearing filament type optical pyrometer is based on the

Kirchoff's law
Wien's law
Seebeck effect
Peltier effect

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