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GATE EC 2020 : Control System Quiz 2 (App update required to attempt this test)
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Question 1
In the following signal flow graph, the number of individual loops is_________
Question 2
The transfer function of a system is given by 
. If x(t) is 0.5 sint, then the phase angle (in degree) between the output and the input will be _______(degree)
. If x(t) is 0.5 sint, then the phase angle (in degree) between the output and the input will be _______(degree)Question 3
The unit step response of an under damped second order system has steady state value of –2. Which one of the following transfer function has these properties?
Question 4
Consider the signal flow graph of a system is shown in the figure below
If the gain C/R is 4 then the value of X is ______ .
Question 5
Consider a system with transfer function 
, consisting of the RC circuit as shown below:
Consider two such systems are cascaded. Find the expression of
and the resulting transfer function of the cascaded system respectively.
, consisting of the RC circuit as shown below: Consider two such systems are cascaded. Find the expression of
and the resulting transfer function of the cascaded system respectively. Question 6
The input-output transfer function of a plant 
. The plant is placed in a unity negative feedback configuration as shown in the figure below.
The signal flow graph that Does Not model the plant transfer function H(s) is
. The plant is placed in a unity negative feedback configuration as shown in the figure below. The signal flow graph that Does Not model the plant transfer function H(s) is
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Sep 7ESE & GATE EC
