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ESE 2019 Technical (Control System : Quiz 3 )
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Question 1
Considering the filtering property, the lead compensators and lag compensators are categorized respectively as.
Question 2
Find the minimum frequency response for which signal x(t) be framed from sample x(n), when x(t) = 2 cos (100
t) + 5 sin (250
t + 
/3) - 4.5 cos (375
t - 
/4) + 15.9 sin (600
t + 
/9)
t) + 5 sin (250t + /3) - 4.5 cos (375t - /4) + 15.9 sin (600t + /9) Question 3
Feed forward derivative control is_____.
Question 4
Which one of the following is the transfer function of the PI-controller?
Question 5
The unit step response of a system is
.
Which is this system?
.Which is this system?
Question 6
Statement (I) : A second order system subjected to a unit impulse oscillates at its natural frequency..
Statement (II) : Impulse input contains frequencies from
.
Statement (II) : Impulse input contains frequencies from
. Question 7
Consider the equation.
Where do the roots of this equation break on the root loci plot?
Where do the roots of this equation break on the root loci plot?
Question 8
The addition of open loop zero pulls the root-loci towards
Question 9
Consider the follwing statemtns regarding ‘relative stability’:
It is defined
1) in terms of gain margin only
2) in terms of phase margin and certain other parameters
3) In terms of gain margin, phase margin and location of poles in s-plane
4) in relation to another identified system
Which of the above statements are correct?
It is defined
1) in terms of gain margin only
2) in terms of phase margin and certain other parameters
3) In terms of gain margin, phase margin and location of poles in s-plane
4) in relation to another identified system
Which of the above statements are correct?
Question 10
A unity feedback system has open-lop poles at s = -2±j2, s = -1 and s = 0 and a zero at s = -3. What are the angles made by the rootloci asymptotes with the real axis?
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Dec 14ESE & GATE EC
