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Automatic Control Systems
Which control action can never be used alone?
Derivative
Both (b) and (c)
Proportional
Integral
Derivative
Both (b) and (c)
Proportional
Integral
Answer
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Related Question
Automatic Control Systems
In root locus analysis the breakaway and break in points
Either lie on the real axis or occur in complex conjugate pairs
Always occur in complex conjugate pairs
None of these
lie on the real axis
Either lie on the real axis or occur in complex conjugate pairs
Always occur in complex conjugate pairs
None of these
lie on the real axis
Answer
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Automatic Control Systems
Nichols chart consists of
Constant magnitude loci
None of these
Magnitude and phase angle loci in log-magnitude versus phase diagram
Constant phase angle loci
Constant magnitude loci
None of these
Magnitude and phase angle loci in log-magnitude versus phase diagram
Constant phase angle loci
Answer
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Automatic Control Systems
Lag compensation permits a high gain at low frequencies.
True
False
True
False
Answer
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Automatic Control Systems
Which dc servomotor requires strongest permanent magnet?
Surface wound with stationary rotor
Slotted armature
Either A or B
Surface wound armature
Surface wound with stationary rotor
Slotted armature
Either A or B
Surface wound armature
Answer
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Automatic Control Systems
For type 1 system the velocity lag error is
Inversely proportional to bandwidth of system
Inversely proportional to gain constant
Directly proportional to gain constant
Independent of gain constant
Inversely proportional to bandwidth of system
Inversely proportional to gain constant
Directly proportional to gain constant
Independent of gain constant
Answer
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