1
GATE ECE 2002
MCQ (Single Correct Answer)
+1
-0.3
Which of the following points is NOT on the root locus of a system with the open loop transfer function $$$G\left(s\right)H\left(s\right)=\frac K{s(s+1)(s+3)}$$$
A
$$s=-j\sqrt{3}$$
B
$$s=-1.5$$
C
$$s=-3$$
D
$$s=-\infty$$
2
GATE ECE 2001
MCQ (Single Correct Answer)
+1
-0.3
Given the $$G\left(s\right)H\left(s\right)=\frac K{s\left(s+1\right)\left(s+3\right)}$$, the point of intersection of the asymptotes of the root loci with the real axis is
A
-4
B
1.33
C
-1.33
D
4
3
GATE ECE 2001
MCQ (Single Correct Answer)
+1
-0.3
The root-locus diagram for a closed loop feedback system is shown in Figure. The system is overdamped. GATE ECE 2001 Control Systems - Root Locus Diagram Question 7 English
A
$$only\;if\;0\;\leq\;K\;\leq\;1$$
B
$$only\;if\;1\;<\;K\;<\;5$$
C
$$only\;if\;\;K\;>\;5$$
D
$$if\;0\;\leq\;K\;<\;1\;or\;K\;>\;5$$
4
GATE ECE 1994
MCQ (Single Correct Answer)
+1
-0.3
If the open loop transfer function is a ratio of a numerator polynomial of degree 'm' and a denominator polynomial of degree 'n', then the integer (n-m) represents the number of
A
breakaway points
B
unstable poles
C
separate root loci
D
asymptotes
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