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Control Systems

Control Systems
The closed loop transfer function of a system is 25/(s² + 25). The settling time of the system is

 5 sec
 25 sec
 ∞ sec
 1 sec

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Control Systems
Time taken by the response to reach and stay within a specified error is called

 Settling time.
 Peak time.
 Peak overshoot.
 Raise time.

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

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

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Control Systems
Consider the following statements for phase lead compensation:

 nether 1 nor 2
 both 1 and 2
 The maximum phase lag occurs at the arithmetic mean of the two corner frequencies.
 Phase lead compensation shifts the gain crossover frequency to the right

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Control Systems
Error constants of a system are a measure of

 transient state response.
 steady state response as well as transient state response.
 steady state response.
 relative stability.

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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)
 s/(s+1)
 1/s
 1/(s+1)

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