Electrical Engg (EEE) - MCQ Practice Questions

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 unity feedback control system with G(s) = 10/[s(s+5)], the static velocity error constant Kv is:

A system exhibits steady-state error of 0.2 for unit ramp input with loop gain K = 50. The static velocity error constant is:

The Nyquist stability criterion states that for stability, the Nyquist plot should not encircle:

A control system with gain margin of 6 dB means:

The settling time of a second-order underdamped system is approximately given by:

In state-space representation, observability matrix rank should be equal to:

A lead compensator with transfer function Gc(s) = (1 + aTs)/(1 + Ts) where a > 1 provides:

For the characteristic equation s⁴ + 8s³ + 24s² + 32s + 15 = 0, using Routh-Hurwitz criterion, the system is:

A system with transfer function H(s) = 100/(s² + 10s + 100) has natural frequency ωₙ and damping ratio ζ respectively as:

Peak overshoot of underdamped second-order system depends on:

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

In compensator design, if both transient and steady-state improvements are needed, which approach is preferred?

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

For a closed-loop control system with unity feedback, increasing proportional gain K primarily causes:

In a root locus plot, the asymptotes for a system with 5 poles and 2 zeros meet at a point called:

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?