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Control Systems
For the polynomial , find the number of roots which lie on the right half of s-plane?
4
2
1
0
4
2
1
0
Answer
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Control Systems
Which one of the following is the steady state error for a step input applied to a unity feedback system with the open loop transfer function G(s) = 10/(s²+14s+50)?
1
infinite
0.83
0
1
infinite
0.83
0
Answer
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Control Systems
When the system gain is doubled the gain margin becomes?
2 times
1/2 times
None of these
Remains unaffected
2 times
1/2 times
None of these
Remains unaffected
Answer
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Control Systems
Force balancing equation for elastic element (K) is (where, x = displacement)
None of these
K *x
K dx/dt
K d2x/dt2
None of these
K *x
K dx/dt
K d2x/dt2
Answer
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Control Systems
Which of the following is/are represents the lag compensator?
(s+5)/(s+6)
(s+2)/(s+5)
both 1 and 2
(s+2)/(s+1)
(s+5)/(s+6)
(s+2)/(s+5)
both 1 and 2
(s+2)/(s+1)
Answer
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Control Systems
Which of the following is the correct expression for the transfer function of an electrical RC phase lag compensating network?
C/(1+RCS)
RCS/(1+RCS)
RC/(1+RCS)
1/(1+RCS)
C/(1+RCS)
RCS/(1+RCS)
RC/(1+RCS)
1/(1+RCS)
Answer
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