The compensator
would provide a maximum phase shift of
The system with the open loop transfer function
The industrial controller having the best steady state accuracy is
consider the following statements :
1. The effect of feedback is to reduce the system error
2. Feedback increases the gain of the system in one frequency range but decreases in another.
3. Feedback can cause a system that is originally stable to become unstable
Which of these statements are correct ?
The intersection of asymptotes of root loci of a system with open loop transfer function
The openloop transfer function of unity feedback control system is
The system is stable is
Which one of the following characteristicequations of result in the stable operation of thefeedback system ?
Consider the following statements:
RouthHurwitz critierion gives
1. aboslute stability
2. the number of roots lying on the right half of the splane
3. the gainmargin and phase margin
Which of these statements are correct ?
A second order system has the damping ratio xand undamped natural frequency of oscillation wn.The setting time at 2% tolerance band of thesystem is
Consider the following statements:
A proportional plus derivative controller
1. has high sensitivity
2. increases the stability of the system
3. improves the steadystate accuracy
Which of these statements are correct ?
The open loop transfer function of a system is
The phase crossover frequency is
Open loop transfer function of a system havingone zero with a positive real value is called
The given characteristic polynomial
s^{4} + s^{3} + 2s^{2} + 2s + 3 =0 has
Which one of the following is the steadystate error for a step input applied to a unity feedbook system with the open loop transfer Function
The open loop transfer function of a unity feedback control system is given as
The phase crossover frequency and the gain margin are, respectively (Correct the options)
The transfer function of a phase lead network can be written as
A control system has
Root locus of the system can lie on the real axis
Consider the following open loop frequency response of a unit feedback system:
The gain and phase margin of the system arerespectively
The transfer function of a phase lead network, as shown in the figure below is
The values, of R_{1} and R_{2} are respectively
The forward path transfer function of a unity feedback system is given by
What is the phase margin for this system ?
Which one of the following statement is correct?
The effects of phase lead compensator on gain crossover frequency () and the bandwidth(BW) are
What is the unit step response of a unity feedback control system having forward path transfer function
An open loop system has a transferfunction . it is converted into aclosed loop system by providing a negative feedback having transfer function 20 (s+ 1).Which one of the following is correct ?The open loop and closed loop systems are,respectively
With regard to the filtering property, the leadcompensator and the lag compensator are,respectively.
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