1
GATE EE 1992
MCQ (Single Correct Answer)
+1
-0.3
A unity feedback system has the open loop transfer function $$G\left( s \right) = {1 \over {\left( {s - 1} \right)\left( {s + 2} \right)\left( {s + 3} \right)}}$$
The Nyquist plot of $$G$$ encircle the origin
A
Never
B
Once
C
Twice
D
Thrice
2
GATE EE 1991
MCQ (More than One Correct Answer)
+1
-0
The system having the Bode magnitude plot shown in Fig. below has the transfer function GATE EE 1991 Control Systems - Polar Nyquist and Bode Plot Question 16 English
A
$${{60\left( {s + 0.01} \right)\left( {s + 0.1} \right)} \over {{s^2}{{\left( {s + 0.05} \right)}^2}}}$$
B
$${{10\left( {1 + 10s} \right)} \over {s\left( {1 + 20s} \right)}}$$
C
$${{3\left( {s + 0.05} \right)} \over {s\left( {s + 0.1} \right)\left( {s + 1} \right)}}$$
D
$${{5\left( {s + 0.1} \right)} \over {s\left( {s + 0.05} \right)}}$$
3
GATE EE 1991
MCQ (Single Correct Answer)
+1
-0.3
Which of the following is the transfer function of a system having the Nyquist plot shown in Fig. below. GATE EE 1991 Control Systems - Polar Nyquist and Bode Plot Question 15 English
A
$${K \over {s{{\left( {s + 2} \right)}^2}\left( {s + 5} \right)}}$$
B
$${K \over {{s^2}\left( {s + 2} \right)\left( {s + 5} \right)}}$$
C
$${{K\left( {s + 1} \right)} \over {{s^2}\left( {s + 2} \right)\left( {s + 5} \right)}}$$
D
$${{K\left( {s + 1} \right)\left( {s + 3} \right)} \over {{s^2}\left( {s + 2} \right)\left( {s + 5} \right)}}$$
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