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Process Control and Instrumentation

Process Control and Instrumentation
Working principle of radiation pyrometer is based on the

Stafan-Boltzman law
Kirchoffs law
Wien's law
Seebeck effect

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Process Control and Instrumentation
Smoke density of the flue gas going out of the chimney is measured by a

Photo electric cell
Chromatograph
Thermal conductivity meter
Polarograph

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Process Control and Instrumentation
Flow rate of those fluids which are insensitive to changes in their density, viscosity or flow velocity profile can be best measured by a

Pitot tube
Flow nozzle type flowmeter
Turbine flowmeter
Magnetic flowmeter

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Process Control and Instrumentation
The closed loop pole of a stable second order system could be

One real positive and the other real negative
Both real and negative
Both real and positive
Complex conjugate with positive real parts

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Process Control and Instrumentation
Reset rate is the another term used for __________ time.

Integral
None of these
Derivative
Dead

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

Flow rate
Pressure
Temperature
Concentration

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