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AE 2019 || Day 20 || Control Systems Quiz 4
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Question 1
The frequency of sustained oscillation for marginal stability, for a control system G(s)H(s) 
and operating with negative feedback, is
and operating with negative feedback, is Question 2
The open-loop transfer function of a unity feedback system is 
for a damping ratio of 0.5, the value of the gain K must be set to
for a damping ratio of 0.5, the value of the gain K must be set to Question 3
A system has a transfer function 
for a unit-step response and 2% tolerance band, the settling time will be
for a unit-step response and 2% tolerance band, the settling time will be Question 4
In the Bode plot of a unity feedback control system, the value of phase of G(jw) at the gain cross-over frequency is -1250. The phase margin of the system is
Question 5
The compensator 
Would provide a maximum phase a maximum phase shift of
Would provide a maximum phase a maximum phase shift of
Question 6
A unity feedback system has an open-loop transfer function as
The phase crosscver frequency of the Nyquist plot is given by
The phase crosscver frequency of the Nyquist plot is given by
Question 7
The transfer function of a linear control system is given by
In its Bode diagram, the value of gain for
rad/sec is
In its Bode diagram, the value of gain for
rad/sec is Question 8
A unity feedback system has forward transfer function
The range of K for the system to be stable is
The range of K for the system to be stable is
Question 9
The impulse response of a second-order under-damped system started from rest is given by :
What are the natural frequency and the damping ratio of the system respectively?
What are the natural frequency and the damping ratio of the system respectively?
Question 10
The response of an initially relaxed, linear constant parameter network to a unit impulse applied at 
is 
then the response of this network for unit step input
is then the response of this network for unit step input- 685 attempts
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