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GATE : Control Systems Champion Quiz 1
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Question 1
Negative feedback in a closed-loop control system DOES NOT
Question 2
A system with transfer function 
has an output 
the input signal 
. Then, the system parameter ‘p’ is
has an output the input signal . Then, the system parameter ‘p’ is Question 3
In the system shown below, x(t) = (sint) u (t). In steady-state, the response y(t) will be
Question 4
As shown in the figure, a negative feedback system has an amplifier of gain 100 with ±10% tolerance in the forward path, and an attenuator of value 9/100 in the feedback path. The overall system gain is approximately:
Question 5
Feedback control systems are
Question 6
The open-loop Transfer Function of a dc motor is given as 
. When connected in feedback as shown below, the approximate value of Ka that will reduce the time constant of the closed loop system by one hundred times as compared to that of the open-loop system is
Question 7
A causal system having the transfer function 
is excited with 10u(t). The time at which the output reaches 99% of its steady state value is
Assume =1.4 and Cp = 1.0 kJ/kg –K
is excited with 10u(t). The time at which the output reaches 99% of its steady state value is Assume =1.4 and Cp = 1.0 kJ/kg –K
Question 8
The open loop transfer function of a unity feedback system is 
. The range of K for which the system is stable is
. The range of K for which the system is stable is Question 9
The output of standard second – order system for a unit step input is given as 
. The transfer function of the system is
. The transfer function of the system isQuestion 10
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?
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Aug 14ESE & GATE EC
