1
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
2
GATE ECE 1994
Subjective
+5
-0
Reduce the signal flow graph shown in fig. below, to obtain another graph which does not contain the node e5.Also, remove any self-loop from the resulting graph. GATE ECE 1994 Control Systems - Signal Flow Graph and Block Diagram Question 2 English
3
GATE ECE 1994
Subjective
+2
-0
The response of an LCR circuit to a step input is
(a) Over damped
(b) Critically damped
(c) Oscillatory

If the transfer function has

(1) poles on the negative real axis
(2) poles on the imaginary axis
(3) multiple poles on the positive real axis
(4) poles on the positive real axis
(5) multiple poles on the negative real axis

4
GATE ECE 1994
Subjective
+2
-0
Match the following with List-1 with List-2

List-1
(a) Very low response at very high frequencies.
(b) Overshoot
(c) Synchro-control transformer output

List-2
(1) Low pass systems
(2) Velocity damping
(3) Natural frequency
(4) Phase-sensitive modulation
(5) Damping ration

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