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Control Systems
Number of roots in left hand half of s plane if characteristic equation is s3 - 4s2 + s + 6 = 0 ?
1.
3.
0.
2.
1.
3.
0.
2.
Answer
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Control Systems
A control system has open loop transfer function . Break away point is lies between
0 and -4.
any of the above.
0 and 4.
-4 and -6.
0 and -4.
any of the above.
0 and 4.
-4 and -6.
Answer
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Control Systems
The graph of an electrical network has N nodes and B branches. The number of links, L with respect to the choice of a tree, is given by
B + N.
B - N + 1.
N - B + 1.
N - 2B - 1.
B + N.
B - N + 1.
N - B + 1.
N - 2B - 1.
Answer
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Control Systems
For a unity feedback control system open loop transfer function then position error constant is
20.
infinity.
40.
0.
20.
infinity.
40.
0.
Answer
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Control Systems
The DC gain of a system represented by the transfer function 12 / {( s + 2 )( s + 3 )} is
10.
5.
1.
2.
10.
5.
1.
2.
Answer
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Control Systems
Force balancing equation for elastic element (K) is (where, x = displacement)
K *x
None of these
K d2x/dt2
K dx/dt
K *x
None of these
K d2x/dt2
K dx/dt
Answer
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