GATE ECE 2009 | GATE ECE Year Wise Previous Years Questions

GATE ECE 2009

MCQ (Single Correct Answer)

-0.6

The Nyquist plot of a stable transfer function G(s) is shown in the figure. We are interested in the stability of the closed loop system in the feedback configuration shown. GATE ECE 2009 Control Systems - Frequency Response Analysis Question 32 English 1

GATE ECE 2009 Control Systems - Frequency Response Analysis Question 32 English 1

GATE ECE 2009 Control Systems - Frequency Response Analysis Question 32 English 2

Which of the foloowing statements is true?

G(s) is is an all-pass filter.

G(s) has a zero in the right-half of S-plane.

G(s) is the impedance of a passive network.

G(s) is marginally stable.

GATE ECE 2009

MCQ (Single Correct Answer)

-0.6

The unit step response of an under-damped second order system has steady state value of -2. Which one of the following transfer function has these properties?

$$\frac{-2.24}{s^2\;+\;2.59s\;+\;1.12}$$

$$\frac{-3.82}{s^2\;+\;1.91s\;+\;1.91}$$

$$\frac{-2.24}{s^2\;-\;2.59s\;+\;1.12}$$

$$\frac{-3.82}{s^2\;-\;1.91s\;+\;1.91}$$

GATE ECE 2009

MCQ (Single Correct Answer)

-0.6

GATE ECE 2009 Control Systems - Frequency Response Analysis Question 31 English 1

GATE ECE 2009 Control Systems - Frequency Response Analysis Question 31 English 2

The gain and phase margins of G(s) for closed loop stability are

6 dB and $$180^\circ $$

3 dB and $$180^\circ $$

6 dB and $$90^\circ $$

3 dB and $$90^\circ $$

GATE ECE 2009

MCQ (Single Correct Answer)

-0.3

The magnitude plot of a rational transfer function G(s), with real coefficient is shown in figure. Which of the following compensators has such a magnitude plot? GATE ECE 2009 Control Systems - Compensators Question 20 English

GATE ECE 2009 Control Systems - Compensators Question 20 English

Lead compensator

Lag compensator

PID controller

Lea-lag compensator

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