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Process Control and Instrumentation

Process Control and Instrumentation
Maximum differential pressure in liquid manometer is __________ psi.

50
20
30
40

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Process Control and Instrumentation
The root locus method, a pole of a transfer function G(s) is the value of s for which G(s) approaches

1
∞
-1

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

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

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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

Pitot tube
Flow nozzle type flowmeter
Magnetic flowmeter
Turbine flowmeter

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Process Control and Instrumentation
Alphatron measures pressure __________ microns.

> 3
< 1
< 3
< 0.1

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Process Control and Instrumentation
High temperature of around 2000°C of incandescent gas mantles is measured by a/an

Radiation pyrometer
Specially designed thermocouple
None of these Here
Optical pyrometer

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