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Control Systems
What is the order of a closed loop control system for a plant with a transfer function equal to G(s) = k/s²(1+Ts) and with unity feedback
1
3
2
0
1
3
2
0
Answer
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Control Systems
The value of gain margin of the system having G ( s )H ( s ) = 8 / ( s + 2 )3 is
6.
2.
4.
8.
6.
2.
4.
8.
Answer
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Control Systems
The value of 'a' in to give phase margin = 45o will be
0.9.
1.414.
1.18.
0.707.
0.9.
1.414.
1.18.
0.707.
Answer
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Control Systems
A second order control system is defined by the following equation: 4 d²c(t)/dt² + 8 dc(t)/dt + 16 c(t) = 16 u(t) The damping ratio and natural frequency for this system are respectively
0.50 and 4 rad/s
0.25 and 2 rad/s
0.25 and 4 rad/s
0.50 and 2 rad/s
0.50 and 4 rad/s
0.25 and 2 rad/s
0.25 and 4 rad/s
0.50 and 2 rad/s
Answer
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Control Systems
With regard to filtering property, the lead compensator is
low pass filter
bandpass filter
band reject filter
high pass filter
low pass filter
bandpass filter
band reject filter
high pass filter
Answer
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Control Systems
The open loop transfer function for unity feedback system is given by 5(1+0.1s) / (s(1+5s)(1+20s)) Find the steady state error for a step input of magnitude 10 is equal to
2.
infinite.
zero.
5.
2.
infinite.
zero.
5.
Answer
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