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Process Control and Instrumentation

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

Emission spectroscopy
Polarimetry
Flame photometry
Oscillometry

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Process Control and Instrumentation
Emf developed by a thermocouple while measuring a temperature of 400°C is 22 mV. The type of thermocouple used is

Iron-constantan
Platinum-rhodium
Chromel-alumel
Platinum-platinum+rhyodium

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Process Control and Instrumentation
Pirani gauge is used for the measurement of

Liquid level under pressure
Very high pressure
High vacuum
Liquid level at atmospheric pressure

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

Dead zone
None of these
Drift
Static error

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Process Control and Instrumentation
Out of the following themocouple wire insulating material, the highest temperature rating is for

Ceramic fibre
Teflon
Fibre glass
Asbestos

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Process Control and Instrumentation
Compositional analysis of flue gas coming out of a furnace in respect of O₂ and CO₂% can be continuously done by a/an

Chromatograph
Zirconia probe
Thermal conductivity cell
Orsat apparatus

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