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Phase crossover frequency is defined at
The Bode plot for a transfer function is shown below:
The steady state error corresponding to a parabolic input is
The frequency at which the Nyquist plot crosses the negative real axis is known as
A unity feedback system has a forward path gain of
The phase angle of the Nyquist plot for ω → ∞ is
The open loop transfer function of a system is given as
The Bode plot of this system is represented as:
A second order system has
It’s M_{p} (peak magnitude) will be approximately
The closed loop transfer function of a control system is given by
C(s)/R(s) = 1/(1+s)
For the input r(t) = sint, the steady state value of c(t) is equal to
A system has transfer function equal to (1s)/(1+s). Its gain at ω = 1 rad/s is
The gain margin of a unity negative feedback system having forward path transfer function
The characteristic equation of a closed loop control system is given by s^{2} + 4s + 16 = 0. The resonant frequency (in radian/sec) of the system is
The gain margin (in dB) of a system having the openloop transfer function
is
Nichol’s chart is useful for detailed study and analysis of
The forward path transfer function of an unity feedback system is given by
What is the phase margin for this system?
The closed loop system having the open loop transfer function,
is
The nyquist plot for a unity feedback control system having open loop transfer function G(s) = K(1s)/(s+1) is shown in figure below :
The system is
A unity feedback control system has a forward path transfer function of Its phase value will be zero at a frequency of ω_{1}.
Which one of the following equation should be satisfied for it?
What is the approximate value of gain margin in the Nyquist diagram shown below?
The magnitudefrequency response of a control system is given in figure below:
The values of ω_{1} and ω_{2} are respectively
Match ListI with ListIl and select the correct answer using the codes given below the lists:
ListI
A. Resonant peak
B. Damped natural frequency (rad/s)
C. Resonant frequency (rad/s)
D. Peak overshoot
List  II
Codes:
A B C D
(a) 3 4 1 2
(b) 3 1 4 2
(c) 2 4 1 3
(d) 2 1 4 3
A second order underdamped system has a damping ratio of 0.8. It is subjected to a sinusoidal input of unit amplitude. It has resonant peak of
54 docs46 tests

54 docs46 tests
