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Process Control and Instrumentation

Process Control and Instrumentation
Liquid argon level in a pressurised storage tank (at 3 kg/cm² ) is measured by a/an

Differential pressure gage
Gage glass
None of these
External float gage

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Process Control and Instrumentation
Emission spectroscopy is used for

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

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Process Control and Instrumentation
What is the Laplace transform of impulse input having magnitude 'X' ?

X
1/X
1
X²

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Process Control and Instrumentation
Zirconia probe is used for the continuous measurment of __________ flue gases going out of the furnace.

Temperature of
Carbon monoxide in
Oxygen in
Carbon dioxide in

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Process Control and Instrumentation
Routh stability method uses __________ loop transfer function.

Open
Closed
Either A or B
Neither A nor B

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Process Control and Instrumentation
Nichol's chart deals with

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

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