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Process Control and Instrumentation

Process Control and Instrumentation
For measuring the temperature of a red hot furnace, which is the most suitable instrument?

Optical pyrometer
Platinum resistance thermometer
Bimetallic thermometer
Thermocouple

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Process Control and Instrumentation
A mercury barometer measures the __________ pressure.

Vacuum
Gauge
Absolute
Atmospheric

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Process Control and Instrumentation
Working principle of mercury in glass thermometer is

Linear expansion
Volumetric expansion
Pressure rise with temperature
None of these

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Process Control and Instrumentation
Thermal conductivity measurement is used for the determination of

Composition of an alloy
Specific gravity of petrofuels
CO₂ percentage in the flue gas
O₂ percentage in the flue gas

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Process Control and Instrumentation
Concentration of sugar solution can be determined by the

Flame photometry
Emission spectroscopy
Polarimetry
Oscillometry

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Process Control and Instrumentation
Liquid flow rate in a small channel is best measured by a/an

Venturimeter
Weir
Pitot tube
Vane meter

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