Electrical Engg (EEE) - MCQ Practice Questions

Which of the following is NOT a characteristic of a proportional (P) controller?

For a unity feedback system with G(s) = K/(s(s+3)(s+5)), what is the system type?

A second-order system has damping ratio ζ = 0.5. What is the nature of its response?

In root locus analysis, as the gain K increases from 0 to ∞, the closed-loop poles move along specific paths. Where do these paths originate?

For the open-loop transfer function G(s)H(s) = K(s+1)/((s+2)(s+3)(s+4)), the system order is:

In a state-space representation, if the system has 4 state variables, what is the dimension of the state vector?

Which of the following transfer functions represents a Type-2 system?

In the root locus of a system with open-loop transfer function G(s)H(s) = K(s+2)/(s(s+1)(s+3)), how many branches exist?

What is the bandwidth of a first-order system with time constant τ = 0.1 seconds?

The static error constant for a Type-1 system with G(s) = 20/(s(s+5)(s+10)) is:

The corner frequency of a transfer function H(s) = 1/(1 + s/10) occurs at:

A system with characteristic equation s³ + 6s² + 11s + 6 = 0 has poles at:

A control system has an open-loop transfer function G(s)H(s) = K/[s(s+2)(s+4)]. What is the type of this system?

In a Bode plot, the magnitude plot slope in dB/decade for a pole at origin is:

A second-order system has damping ratio ζ = 0.5. This system is classified as:

Which of the following is a characteristic of a lag compensator?

For a Type 2 system with step input, the steady-state error is:

The transfer function of a proportional-integral (PI) controller is:

A negative feedback control system has an open-loop transfer function G(s)H(s) = K/[s(s+2)(s+4)]. What is the type of the system?

In Bode plot analysis, what does the gain margin represent?