List of top Electronics and Communication Engineering Questions on Control Systems

A unity feedback second order system has \( G(s) = \frac{100{S^2+10S+100} \). The 2% settling time is in second.
{PD controller:
For the state equation $\dot{x} = 3x$ , the system is _______.
Which part of a PID controller is specifically responsible for eliminating the steady-state error?
A phase-lead compensator is primarily used to _______.
A second order system has $\omega_n = 4\text{ rad/sec}$ and $\zeta = 0.5$. What is the damped natural frequency $\omega_d$ ?
The open loop transfer function of a unity feedback system is $G(s) = \frac{10}{s(s+2)}$, what is the steady state error for a unit step input?

Determine the transfer function \(\dfrac{C(s)}{R(s)}\) of the system shown below.

The quadrature null effect of the coherent detector occur at
The total power in the two side-frequencies of the resulting AM is one third of the total power in the modulated wave when the modulation index is
The incorrect statement with respect to Bode Plots is
For the following Routh's array, the system is
Error constants of a system are measure of
The following are the effects of a phase-lead compensation except
The steady state error for a type 1 system with input of \[ \frac{At^2}{2}u(t) \] is
The control system with single pole at origin is
For the system \[ G(s)H(s)=\frac{K(s+a^{2})}{(s+b)^{2}}, \] the break point is
The incorrect option for a Closed loop control system output is
The characteristic polynomial of a system is \[ s^3+2s^2+4s+K. \] The system is marginally stable for
The root locus approaches straight lines as asymptotes approaches
The damped natural frequency of an underdamped system is given by
The following plot shows
The range of steady state value for the rise time of underdamped system is
\(\displaystyle \lim_{s\rightarrow0}s^{2}G(s)\) defines

Consider the following frequency domain specifications required to design a control system: 
A. Bandwidth 
B. Gain margin 
C. Phase margin 
D. Maximum overshoot 
Choose the correct answer: