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Process Control and Instrumentation

Process Control and Instrumentation
A mercury barometer measures the __________ pressure.

Vacuum
Absolute
Atmospheric
Gauge

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Process Control and Instrumentation
Gain margin is equal to the

Gain in P controller
Amplitude ratio
Gain in P-I controller
Reciprocal of amplitude ratio

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Process Control and Instrumentation
Psychrometer determines the

Moisture content of solids
Water of crystallisation
Hygroscopic nature of solids
Humidity of gases

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Process Control and Instrumentation
E.m.f. generated by thermocouples is of the order of

Kilo volts
Microvolts
Millivolts
Volts

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Process Control and Instrumentation
In Bode plot, A.R. vs. w is plotted on a/an __________ graph paper.

Semi-log
Log-lag
Ordinary
Triangular

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Process Control and Instrumentation
The initial value (t=0) of the unit step response of the transfer function [(s + 1)/(2s + 1)] is

43832
1
2

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