MCB, MCCB, ACB, and VCB are most common types of Circuit breakers. Circuit breakers are essential devices that we use to protect electrical systems from faults and overloads. They come in different types depending on the application, voltage level, and breaking capacity. MCB (Miniature Circuit Breaker) MCCB (Moulded Case Circuit Breaker): ACB (Air Circuit Breaker):…
Category: Control System MCQs
The system 2d2y/dt2+4dy/dt+8y=8x, has damping ratio______
Q. The system 2d2y/dt2+4dy/dt+8y=8x, has damping ratio______ a. 0.25 b. 0.1 c. 0.33 d. 0.5 Answer and Explanation Answer is 0.5 The given System is a second order system and is given by 2d2y/dt2+4dy/dt+8y=8x After taking the Laplace Transform we get 2s2Y(s)+4sY(s)+8Y(s)=8X(s) or (2s2+4s+8) Y(s)=8X(s) Y(s)/X(s) =8/(2s2+4s+8) so, the transfer function of the system is…
Vertical lines on the S-plane are the lines of constant ______________
a. Peak time Tp b. Settling time Ts c. Percent Overshoot c. Rise time Answer Explanation Ans is b) Settling time Ts Solution: As Ts=4/σd where σd is real part of a complex pole. Now as shown in the above Fig. C1 below, on S-plane vertical lines represents constant real part of the imaginary poles…