1
GATE EE 2014 Set 1
Numerical
+2
-0
The Bode magnitude plot of the transfer function $$G\left( s \right) = {{K\left( {1 + 0.5s} \right)\left( {1 + as} \right)} \over {s\left( {1 + {s \over 8}} \right)\left( {1 + bs} \right)\left( {1 + {s \over {36}}} \right)}}$$ is shown below: Note that $$-6$$ $$dB/octave=-20$$ $$dB/decade.$$ The value of $${a \over {bK}}$$ is _______. GATE EE 2014 Set 1 Control Systems - Polar Nyquist and Bode Plot Question 25 English
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2
GATE EE 2010
MCQ (Single Correct Answer)
+2
-0.6
The frequency response of $$G\left( s \right) = 1/\left[ {s\left( {s + 1} \right)\left( {s + 2} \right)} \right]$$ plotted in the complex $$\,G\left( {j\omega } \right)$$ plane $$\left( {for\,\,0 < \omega < \infty } \right)$$ is
A
GATE EE 2010 Control Systems - Polar Nyquist and Bode Plot Question 26 English Option 1
B
GATE EE 2010 Control Systems - Polar Nyquist and Bode Plot Question 26 English Option 2
C
GATE EE 2010 Control Systems - Polar Nyquist and Bode Plot Question 26 English Option 3
D
GATE EE 2010 Control Systems - Polar Nyquist and Bode Plot Question 26 English Option 4
3
GATE EE 2009
MCQ (Single Correct Answer)
+2
-0.6
The asymptotic approximation of the log magnitude vs frequency plot of a system containing only real poles and zeros is shown. Its transfer function is GATE EE 2009 Control Systems - Polar Nyquist and Bode Plot Question 10 English
A
$${{10\left( {s + 5} \right)} \over {s\left( {s + 2} \right)\left( {s + 25} \right)}}$$
B
$${{1000\left( {s + 5} \right)} \over {{s^2}\left( {s + 2} \right)\left( {s + 25} \right)}}$$
C
$${{100\left( {s + 5} \right)} \over {s\left( {s + 2} \right)\left( {s + 25} \right)}}$$
D
$${{80\left( {s + 5} \right)} \over {{s^2}\left( {s + 2} \right)\left( {s + 25} \right)}}$$
4
GATE EE 2009
MCQ (Single Correct Answer)
+2
-0.6
The open loop transfer function of a unity feedback system is given by $$G\left( s \right) = \left( {{e^{ - 0.1s}}} \right)/s.$$
The gain margin of this system is
A
$$11.95$$ $$dB$$
B
$$17.67$$ $$dB$$
C
$$21.33$$ $$dB$$
D
$$23.9$$ $$dB$$
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