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Process Control and Instrumentation

Process Control and Instrumentation
Continuous measurement of moisture in paper is done by

Sling psychrometer
Hair-hygrometer
Weighing
High resistance Wheatstone's bridge circuit

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Process Control and Instrumentation
Nichol's chart deals with

Closed loop values vs. open loop values
R. vs. phase lag of second order
R. vs. phase lag of first order
Frequency response values of controllers

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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

Thermal conductivity cell
Zirconia probe
Orsat apparatus
Chromatograph

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Process Control and Instrumentation
Which of the following filled system expansion thermometers has the lowest positive temperature measurement capability?

Nitrogen in steel thermometer
Alcohol in glass thermometer
Fused metal (Na or K) in steel thermometer
Mercury in glass thermometer

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Process Control and Instrumentation
Thermal conductivity measurement com-prises the working principle of a

Spectrometer
Chromatograph
Polarimeter
CO₂ analyser

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Process Control and Instrumentation
The transfer function of a first order system is

1/(Ts + 1)
1/Ts
S/(Ts + 1)
None of these

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MORE MCQ ON Process Control and Instrumentation

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