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Process Control and Instrumentation

Process Control and Instrumentation
Mass spectrometer is used for the composition analysis of

Alloys
None of these
Solids
Isotopes

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Process Control and Instrumentation
Which of the following is a desirable characteristic of an instrument?

High drift
High measuring lag
Poor reproducibility
High fidelity

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Process Control and Instrumentation
The amplitude ratio for the sinusoidal response of __________ is < 1.

None of these
First order system
Transportation lag
Second order system

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

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

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Process Control and Instrumentation
Which of the following thermocouples is incapable of measuring sub-zero (i.e., < 0°C) temperature?

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

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Process Control and Instrumentation
Polarograph is meant for the analysis of

Solids
Isotopes
Miscible liquids
Gaseous mixture

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