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Process Control and Instrumentation

Process Control and Instrumentation
In Bode plot, Φ vs ω is plotted on a/an __________ graph paper.

Triangular
Ordinary
Log-log
Semi-log

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Process Control and Instrumentation
A sinusoidal variation in the input passing through a linear first order system

Becomes more oscillatory (frequency increases)
Becomes less oscillatory (frequency decreases)
Gets amplified (magnitude increases)
Gets attenuated (magnitude decreases)

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Process Control and Instrumentation
For an input forcing function, X(t) = 2t², the Laplace transform of this function is

2/s³
4/s³
4/s²
2/s²

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Process Control and Instrumentation
Characteristic equation is the denominator of __________ loop transfer function.

Neither A Nor B Here
Open
Both A & B Here
Closed

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Process Control and Instrumentation
Routh stability method uses __________ loop transfer function.

Either A or B
Closed
Neither A nor B
Open

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Process Control and Instrumentation
Bode stability method uses __________ loop transfer function.

Neither A nor B Here
Either A Or B Here
Open
Closed

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