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Process Control and Instrumentation

Process Control and Instrumentation
What is the ratio of output amplitude to input amplitude for a sinusoidal forcing function in a first order system?

< 1
1
None of these
>1

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Process Control and Instrumentation
Composition of alloys can be determined by

Refractrometer
None of these
Polarograph
Chromatograph

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Process Control and Instrumentation
Zirconia probe is used for the measurement of

% O₂ in flue gas
Humidity of air
% CO₂ in flue gas
Speed of a submarine

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Process Control and Instrumentation
Thermal conductivity based continuous flue gas analyser makes use of varying thermal conductivity of the constituents of flue gases. Which of the following constituents of flue gases has the maximum thermal conductivity?

CO₂
N₂
O₂
CO

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Process Control and Instrumentation
Characteristic equation is the denominator of __________ loop transfer function.

Neither A Nor B Here
Closed
Open
Both A & B Here

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Process Control and Instrumentation
Liquid flow rate in an open channel can not be measured by a/an

V-notch
Orifice meter
Cipolletti weir
Rectangular weir

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