Root Locus Quiz - Root Locus Rules

     This quiz tests your knowledge of the root locus rules.  You will have to answer several questions about how those rules apply in several different systems..  Take time to be sure of each answer as you enter it.  You will receive a grade for the entire set of problems when you have submitted answers to all of the questions.


Problem 1

v  If there are three real poles at -1, -2 and -4,
           in which directions will the root locus go to infinity?
           The poles are shown on this plot.

Click on your answer:
    +/- 600, -1800

    00, +/- 1200

    Other

Helpful Hint:Sketch your guess as to how the locus will look.
Your answer has been 


Problem 2

v In this system there are open-loop poles at s = 0, -2 and -4.
       Determine where root locus is on the real axis.

Click on any real axis segments where the root
locus is found.
    To the left of s = -4

    Between s = -4 and s = -2

    Between s = -2 and s = 0
 

Your answer has been 


Problem 3

v In this system there are open-loop poles at s = 0, -2 and -4.
         Determine the centroid for this system.

Click on your answer.
    The centroid is at s = -2.0

    The centroid is at s = -3.0

    The centroid is at s = -1.5

    None of the above.
 

Your answer has been 

Click this button when you have answered all of the questions.

Your grade for this quiz =