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Process Control and Instrumentation

Process Control and Instrumentation
Number of poles in a system with transfer function 1/(s² + 2s² + 1) is

1
5
2
3

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Process Control and Instrumentation
__________ controller has the maximum stabilising time.

PID
P
PI
PD

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

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

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Process Control and Instrumentation
Flow rate of those fluids which are insensitive to changes in their density, viscosity or flow velocity profile can be best measured by a

Magnetic flowmeter
Turbine flowmeter
Pitot tube
Flow nozzle type flowmeter

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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

Orsat apparatus
Zirconia probe
Chromatograph
Thermal conductivity cell

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Process Control and Instrumentation
Radiation thermometer can not measure the temperature

Of liquid oxygen
Of moving objects at high temperature
Inside a pressure vessel
Of an object without coming in contact with it

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