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Control Systems
A system is stable for (where GM = Gain Margin and PM = Phase Margin):
GM -ve.
GM and PM both -ve.
PM - ve.
GM and PM both +ve.
GM -ve.
GM and PM both -ve.
PM - ve.
GM and PM both +ve.
Answer
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Related Question
Control Systems
What is the type of closed loop system for the plant transfer function G(s) = k/s²(1+Ts) and with unity feedback?
2
1
0
3
2
1
0
3
Answer
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Control Systems
The transfer function of a plant is T(s) = 5/(s+5)(s² + 5 + 1). The second order approximation of T(s) using dominant pole concept is
1/(s² + 5 + 1)
5/(s² + 5 + 1)
5/(s+1)(s+5)
1/(s+1)(s+5)
1/(s² + 5 + 1)
5/(s² + 5 + 1)
5/(s+1)(s+5)
1/(s+1)(s+5)
Answer
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Control Systems
Force balancing equation of a dash-pot element is (where, x = displacement)
B d2x/dt2
None of these
B dx/dt
B *x
B d2x/dt2
None of these
B dx/dt
B *x
Answer
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Control Systems
For the polynomial , find the number of roots which lie on the right half of s-plane?
0
1
4
2
0
1
4
2
Answer
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Control Systems
Angle of asymptotes for complimentary root locus is
(2q)*180/P
(2q)*180/(P-Z)
(2q+1)*180/(P-Z)
(2q+1)*180/P
(2q)*180/P
(2q)*180/(P-Z)
(2q+1)*180/(P-Z)
(2q+1)*180/P
Answer
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