1
GATE ECE 2001
MCQ (Single Correct Answer)
+2
-0.6
The feedback control system in Figure is stable GATE ECE 2001 Control Systems - Stability Question 14 English
A
for all K $$\geq$$ 0
B
only if K $$\geq$$ 1
C
only if 0 $$\leq$$ K < 1
D
only if 0 $$\leq$$ K $$\leq$$ 1
2
GATE ECE 2001
Subjective
+5
-0
Consider the feedback control system shown in figure. GATE ECE 2001 Control Systems - Stability Question 4 English
(a) Find the transfer function of the system and its characteristic equation.

(b) Use the Routh-Hurwitz criterion to determine the range of 'K' for which the system is stable.

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 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
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