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Automatic Control Systems

Automatic Control Systems
The effect of adding poles and zeros can be determined quickly by

Nyquist plot
Bode plot
Root locus
Nichols chart

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Automatic Control Systems
For type 1 system the velocity lag error is

Inversely proportional to gain constant
Inversely proportional to bandwidth of system
Directly proportional to gain constant
Independent of gain constant

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Automatic Control Systems
In the field controlled motor the entire damping comes from

Armature resistance
Field resistance
Motor friction and load
Back emf

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Automatic Control Systems
For any transfer function, the constant phase angle loci are

A family of circles
A family of straight lines
Either (a) or (b)
Neither (a) nor (b)

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Automatic Control Systems
Nichols chart consists of

Constant magnitude loci
None of these
Constant phase angle loci
Magnitude and phase angle loci in log-magnitude versus phase diagram

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Automatic Control Systems
Transport lag usually exists in

Pneumatic systems
Hydraulic systems and thermal systems
Thermal, hydraulic and pneumatic systems
Thermal systems

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MORE MCQ ON Automatic Control Systems

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