1
GATE ECE 2016 Set 2
MCQ (Single Correct Answer)
+1
-0.3
The number and direction of encirclements around the point −1 + j0 in the complex plane by the Nyquist plot of G(s) =$${{1 - s} \over {4 + 2s}}$$ is
A
zero
B
one, anti-clockwise
C
one, clockwise
D
two, clockwise
2
GATE ECE 2016 Set 1
MCQ (Single Correct Answer)
+1
-0.3
A closed-loop control system is stable if the Nyquist plot of the corresponding open-loop transfer function
A
encircles the s-plane point (−1 + j0) in the counterclockwise direction as many times as the number of right-half s-plane poles.
B
encircles the s-plane point (0 − j1) in the clockwise direction as many times as the number of right-half s-plane poles.
C
encircles the s-plane point (−1 + j0) in the counterclockwise direction as many times as the number of left-half s-plane poles.
D
encircles the s-plane point (−1 + j0) in the counterclockwise direction as many times as the number of right-half s-plane zeros.
3
GATE ECE 2015 Set 3
Numerical
+1
-0
Consider the Bode plot shown in the figure. Assume that all the poles and zeroes are real-valued. The value of fH - fL (in Hz) is ______. GATE ECE 2015 Set 3 Control Systems - Frequency Response Analysis Question 47 English
Your input ____
4
GATE ECE 2015 Set 3
Numerical
+1
-0
The phase margin (in degrees) of the system G(s)=$${{10} \over {\left( {s + 10} \right)}}$$ is ___________.
Your input ____
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