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Process Control and Instrumentation

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

Absolute
Vacuum
Gauge
Atmospheric

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Process Control and Instrumentation
Bode diagram are generated from output response of the system subjected to which of the following input?

Sinusoidal
Ramp
Impulse
Step

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Process Control and Instrumentation
Thermal conductivity based continuous flue gas analyser makes use of varying thermal conductivity of the constituents of flue gases. Which of the following constituents of flue gases has the maximum thermal conductivity?

CO₂
CO
O₂
N₂

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Process Control and Instrumentation
Response of a system to a sinusoidal input is called __________ response.

None of these
Impluse
Frequency
Unit step

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Process Control and Instrumentation
Bode diagram is a plot of

AR vs. log (f) and Φ vs. log (f)
None of these
Log (AR) vs. log (f) and (Φ) vs. log (f)
Log (AR) vs. f and log Φ vs.f

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

Log-lag
Triangular
Ordinary
Semi-log

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