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Control Systems
The characteristic equation of a feedback control system is given by s³ + 5s² + (k + 6)s + k = 0. In the root loci diagram, the asymptotes of the root loci for large 'k' meet at a point in the s-plane whose coordinates are
(1,0)
(-2,0)
(-1,0)
(2,0)
(1,0)
(-2,0)
(-1,0)
(2,0)
Answer
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Related Question
Control Systems
Which of the following is/are the advantages of a closed loop control system?
The closed loop systems are accurate.
both 1 and 2.
nether 1 nor 2.
The closed loop systems are less affected by noise.
The closed loop systems are accurate.
both 1 and 2.
nether 1 nor 2.
The closed loop systems are less affected by noise.
Answer
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Control Systems
The following transfer function represents a phase-lead compensator?
(s+4)/(s+6)
1/s
(4s+2)/(6s+1)
(s+4)/(3s+6)
(s+4)/(s+6)
1/s
(4s+2)/(6s+1)
(s+4)/(3s+6)
Answer
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Control Systems
Sparking between the contacts can be reduced by inserting
a capacitor in series with the contacts.
a capacitor in parallel with the contacts.
a resistor in the line.
a reactor in the line.
a capacitor in series with the contacts.
a capacitor in parallel with the contacts.
a resistor in the line.
a reactor in the line.
Answer
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Control Systems
The closed loop transfer function of a unity feedback control system is 9/(s² + 3s + 9), then the type of the system is
0
1
2
3
0
1
2
3
Answer
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Control Systems
A cascade of three linear time invariant systems is causal and unstable. From this we conclude that
each system in the cascade is individually caused and unstable.
at least one system is unstable and at least one system is causal.
the majority are unstable and the majority are causal.
at least one system is causal and all systems are unstable.
each system in the cascade is individually caused and unstable.
at least one system is unstable and at least one system is causal.
the majority are unstable and the majority are causal.
at least one system is causal and all systems are unstable.
Answer
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