Dear candidates you will find MCQ questions of Control System Engineering here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
Explanation: s= -g(s)h(s)/1+g(s)h(s)-1.1.
Explanation: the major requirement of the feedback is to reduce of the system with parameter variations that may vary with age, with changing environment.
Explanation: for a good control system the speed of response and stability must be high and for the slow and sluggish response is not used and undesirable.
Explanation: feedback control system has the property of reducing the error and that is by differencing the output with the desired output and as the equation of the output of the system is c=gr/1+gh.
Explanation: superposition theorem states that for two signals additivity and homogeneity property must be satisfied and that is applicable for the lti systems.
Explanation: the error will be calculated with respect to the actuating signal i.e the feedback signal is either added or subtracted from the reference signal and the error is calculated with respect to the resultant signal. hence, the above statement is false.
Explanation: damp() is the correct command to find the damping ration of the system. we need to represent the system by it’s transfer function and give it as an input to the damp()
Explanation: the generalized time response of a second order control system reduces to a
Explanation: the time response of a system with a damping ratio of 1 is critically damped. but the roots of the characteristic equation will be equal and equal to negative of the natural undamped frequency of the system.
Explanation: as the value of a increases, the inverse laplace transform of the given transfer function suggests that the e-at value is reducing. hence for a higher a, the graph reaches a 0 earlier. from the given figure, the purple plot reaches the steady state faster so purple plot is correct only.
Jump to