1
GATE ECE 1992
MCQ (Single Correct Answer)
+2
-0.6
Source encoding in a data communication system is done in order to
A
enhance the information transmission.
B
band pass filters and envelope rate detectors.
C
conserve the transmitted power.
D
discriminator detection.
2
GATE ECE 1992
MCQ (Single Correct Answer)
+2
-0.6
For a random variable 'X' following the probability density function, p (x), shown in figure, the mean and the variance are, respectively. GATE ECE 1992 Communications - Random Signals and Noise Question 10 English
A
1/2 and 2/3
B
1 and 4/3
C
1 and 2/3
D
2 and 4/3
3
GATE ECE 1992
MCQ (Single Correct Answer)
+2
-0.6
Given a unity feedback system with open loop transfer function, $$$G\left(s\right)=\frac K{s\left(s+1\right)\left(s+2\right)}$$$ The root locus plot of the system is of the form.
A
GATE ECE 1992 Control Systems - Root Locus Diagram Question 16 English Option 1
B
GATE ECE 1992 Control Systems - Root Locus Diagram Question 16 English Option 2
C
GATE ECE 1992 Control Systems - Root Locus Diagram Question 16 English Option 3
D
GATE ECE 1992 Control Systems - Root Locus Diagram Question 16 English Option 4
4
GATE ECE 1992
Subjective
+8
-0
Block diagram model of a position control system is shown in figure. GATE ECE 1992 Control Systems - Time Response Analysis Question 5 English
(a) In absence of derivative feedback (Kt=0) , determine damping ratio of the system for amplifier gain KA=5. Also find the steady state error to unit ramp input.

(b) Find suitable values of the parameters KA and Kt so that damping ratio of the system is increased to 0.7 without affecting the steady state error as obtained in part (a).
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