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Control Systems
In polar plots if the critical point '-1+j0' is enclosed then the system is --------
marginally stable
stable
critical stable
unstable
marginally stable
stable
critical stable
unstable
Answer
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Related Question
Control Systems
The type number of the control system with G(s) = k(s+2)/(s(s²+2s+3) is
3
0
2
1
3
0
2
1
Answer
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Control Systems
The maximum phase lag occurs at the ------------------- of the two corner frequencies?
arithmetic mean
either 1 or 2
geometric mean
None of these
arithmetic mean
either 1 or 2
geometric mean
None of these
Answer
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Control Systems
The transfer function for tachometer E(S)/θ(S) is
K/S
KS2
KS
K
K/S
KS2
KS
K
Answer
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Control Systems
Error at corner frequency ωcf of first order control system is -------
±1 db
±4 db
±2 db
±3 db
±1 db
±4 db
±2 db
±3 db
Answer
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Control Systems
The impulse response of an initally relaxed linear system is e-2tu(t). To produce a response of te-2tu(t), the input must be equal to
(0.5)e-2tu(t).
e-2tu(t).
2e-tu(t).
e-tu(t).
(0.5)e-2tu(t).
e-2tu(t).
2e-tu(t).
e-tu(t).
Answer
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