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Control Systems

Control Systems
Which of the following is/are represents the lead compensator?

 (s+2)/(s+5)
 (s+5)/(s+6)
 both 2 and 3
 (s+2)/(s+1)

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Control Systems
Given the transfer function of a system. Which of the following characteristics does it have?

 Under damped
 Critical damped
 any of the above
 Over damped

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Control Systems
Based on relation between the arm impedances the filters can be categorized into how many types?

 Not classified at all.
 3.
 4.
  2.

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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

 0.25 and 4 rad/s
 0.25 and 2 rad/s
 0.50 and 4 rad/s
 0.50 and 2 rad/s

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Control Systems
The poles of the second order system are at -3 ± j4. The damping ratio of the system is

 3/5
 3/7
 4/5
 3/4

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Control Systems
The transfer function of the system described by d²/dt²(y(t)) + 3d/dt(y(t)) + 2y(t) = 5u(t) with u(t) as input and y(t) as output is

 s(s²+3s+2)/5
 (s²+3s+2)/5
 5/s(s²+3s+2)
 5/(s²+3s+2)

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