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Control Systems
A second order under damped system has damping ratio of 0.3. Find the phase margin of the system?
20°
30°
3°
60°
20°
30°
3°
60°
Answer
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Related Question
Control Systems
The value of 'a' in to give phase margin = 45o will be
1.18.
0.707.
1.414.
0.9.
1.18.
0.707.
1.414.
0.9.
Answer
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Control Systems
The impulse response of a linear system is e-t, (t > 0). The corresponding transfer function is
1/s(s+1)
1/(s+1)
1/s
s/(s+1)
1/s(s+1)
1/(s+1)
1/s
s/(s+1)
Answer
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Control Systems
Time constant is defined as the time taken by the response of the system to reach ----------- ?
63% of the final value
50% of the final value
100% of the final value
70.7% of the final value
63% of the final value
50% of the final value
100% of the final value
70.7% of the final value
Answer
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Control Systems
When deriving the transfer function of linear element
both initial conditions and loading are taken into account.
initial conditions are assumed to be zero but loading is taken into account.
initial conditions are taken into account but the element is assumed to be not loaded.
initial conditions are assumed to be zero and the element is assumed to be not loaded.
both initial conditions and loading are taken into account.
initial conditions are assumed to be zero but loading is taken into account.
initial conditions are taken into account but the element is assumed to be not loaded.
initial conditions are assumed to be zero and the element is assumed to be not loaded.
Answer
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Control Systems
A proportional plus integral controller
it increases rise time
has high sensitivity
both 2 and 3
increases the stability of the system
it increases rise time
has high sensitivity
both 2 and 3
increases the stability of the system
Answer
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