1
GATE ECE 1998
MCQ (Single Correct Answer)
+1
-0.3
Consider a unity feedback control system with open-loop transfer function $$G\left(s\right)\;=\;\frac K{s\left(s\;+\;1\right)}$$ . The steady state error of the system due to a unit step input is
A
zero
B
K
C
1/K
D
infinite
2
GATE ECE 1995
MCQ (Single Correct Answer)
+1
-0.3
For a second order system, damping ratio $$\left(\xi\right)$$ , is 0 < $$\xi$$ < 1 ,then the roots of the characteristic polynomial are
A
Real but not equal
B
Real and equal
C
Complex conjugate
D
Imaginary
3
GATE ECE 1995
MCQ (Single Correct Answer)
+1
-0.3
The final value theorem is used to find the
A
steady state value of the system output
B
initial value of the system output
C
transient behaviour of the system output
D
none of these
4
GATE ECE 1995
MCQ (Single Correct Answer)
+1
-0.3
If $$L\left(f\left(t\right)\right)=\frac{2\left(s+1\right)}{s^2+2s+5}$$ then f(0+) and f($$\infty$$) are given by [Note: 'L' stands for 'Laplace Transform of']
A
0,2 respectively
B
2,0 respectively
C
0,1 respectively
D
2/5,0 respectively
GATE ECE Subjects
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