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Control Systems
For a unity feedback control system open loop transfer function then position error constant is
infinity.
40.
20.
0.
infinity.
40.
20.
0.
Answer
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Control Systems
The phase of lead compensator of the system G ( s ) = ( s + a ) / ( s + b ) is at its maximum at:
a / b.
ab.
√( a / b).
√( ab ).
a / b.
ab.
√( a / b).
√( ab ).
Answer
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Control Systems
The transfer function of a system is given as below, if a = 0.1, then the steady state error to unity ramp input will be
0.49.
0.25.
0.16.
0.35.
0.49.
0.25.
0.16.
0.35.
Answer
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Control Systems
The value of 'a' in to give phase margin = 45o will be
0.707.
1.18.
1.414.
0.9.
0.707.
1.18.
1.414.
0.9.
Answer
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Control Systems
Force balancing equation of a mass element is (where, x = displacement)
any of the above
M d2x/dt2
M *x
M dx/dt
any of the above
M d2x/dt2
M *x
M dx/dt
Answer
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Control Systems
In which of the following controller band width is increased?
both 1 and 2
nether 1 nor 2
proportional plus integral controller
proportional plus derivative controller
both 1 and 2
nether 1 nor 2
proportional plus integral controller
proportional plus derivative controller
Answer
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