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Process Control and Instrumentation

Process Control and Instrumentation
Flame photometry is used for the determination of compositional analysis of

Isotopes
Solids
Alkali metals
Natural gas

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Process Control and Instrumentation
0n-off control which is a special case of proportional control, has a band width of about __________ percent.

25
100
75

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Process Control and Instrumentation
Continuous flue gas analyser makes use of paramagnetic properties of some of its constituents, which move towards the strongest part of the magnetic field thus displacing diamagnetic gases. Which of the following gases is diamagnetic?

NO
O₂
CO₂
NO₂

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Process Control and Instrumentation
Pressure of 0.01 psi (absolute) can be measured by __________ gauge.

Mcloid
Ionisation
Pirani
None of these

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Process Control and Instrumentation
Emission spectroscopy is used for

Determining water purity
Determination of CO₂ in gases
NOxdetermination
Solids and metal analysis

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Process Control and Instrumentation
Flow rate measurement of hostile acids and alkalis can be most suitably done by a/an

Hot wire anemometer
Orificemeter
Venturimeter
Magnetic flow meter

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