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Control Systems

Control Systems
Find the order of a system given by

 2.
 4.
 5.
 3.

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Control Systems
Consider the following statements for phase lead compensation:

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

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Control Systems
The characteristic equation of a control system is give by s(s + 4)(s² + 2s + 1) + k(s + 1) = 0. Find the angle between the asymptotes?

 360°
 60°
 180°
 120°

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Control Systems
Time taken for the response to rise from zero to 100 % for very first time is called

 Settling time.
 Delay time.
 Peak time.
 Rise time.

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Control Systems
Number of sign changes in the entries in 1st column of Routh array denotes the no. of

 zeroes of system in RHP.
 open loop poles in RHP.
 roots of characteristic polynomial in RHP.
 open loop zeroes in RHP.

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Control Systems
Type and order of transfer function G (s) = K / {s(s + 2)}

 1, 1.
 1, 2.
 2, 1.
 0, 2.

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