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Process Control and Instrumentation

Process Control and Instrumentation
Stroboscope is used for the measurement of

Depression of freezing point
Rpm of a flywheel
Frequency of light
Liquid level under pressure

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Process Control and Instrumentation
Liquid column manometers are used for measuring the pressure __________ kgf/cm² .

< 3 (gage)
> 2(gage)
< atmospheric
< 10 (gage)

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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
Strain gage pressure transducers are used to measure __________ pressures.

Both A & B Here
Gage as well as vacuum
Neither A nor B
Absolute as well as differential

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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
Which of the following is never used as an element of industrial resistance thermometer?

Copper
Lead
Nickel
30% iron + 70% nickel

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