Quiz

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Year 2024

September
Week # 1 Quiz 4

Q1. The Nyquist plot of loop transfer function \(G(s) H(s)\) of a close loop passing through the point \((-1 + j0)\) in \(G(S) H(S)\) plane. The phase margin of the system is

Q2. The phase shift of \(G(s) = \frac{1}{s^2}\) is

Q3. The lead compensator used for a close loop controller has following transfer function \(K\frac{(1 + \frac{s}{a})}{(1+ \frac{s}{b})}\) for such a lead compensator

Q4.  In a stable control system backlash can cause which of the following?

Q5. If the magnitude of \(G(j\omega )H(j\omega)\) at phase crossover frequency is \(0.5\). Find the gain margin of the given system?

Q6. On which of the following factors does the sensitivity of a closed loop system to gain changes and load disturbances depend ?

Q7. The type of a transfer function denotes the number of

Q8. Output of the feedback control system should be a function of

Q9. The peak overshoot of the step response of an under damped second order system is an explicit indication of

Q10. The steady-state error of a control system is affected by the type of: