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Sample questions of ECE

Printed From: One Stop GATE
Category: GATE Technical Discussions
Forum Name: GATE ECE
Forum Discription: General Technical Discussions, Queries, doubts etc. for GATE in ECE.
URL: http://forum.onestopgate.com/forum_posts.asp?TID=373
Printed Date: 07Feb2025 at 10:06pm


Topic: Sample questions of ECE
Posted By: Arpita
Subject: Sample questions of ECE
Date Posted: 15Feb2007 at 12:38pm



1. In a series of RLC circuit, R=10 ohm, L=100 mH, C=10 micro F. The selectivity of the circuit is:

A. 5
B. 1000 rad/sec
C. 15.92 Hz
D. 0.2
_________________________

2. The impulse response h[n] of a linear time-invariant system is given byh[n] = u[n + 3] + u[n - 2] - 2u[n-7]where u[n] is the unit step sequence. The above system is

A. stable but not causal
B. stable and causal
C. causal but unstable
D. unstable and not causal
_________________________

3. In what range should Re(s) remain so that the Laplace transform of the function e(a+2)t+5 exits?

A. Re (s) > a + 2
B. Re (s) > a + 7
C. Re (s) < 2
D. Re (s) > a + 5
_________________________

4. A device with input x(t) and output y(t) is characterized by: y(t) = x^2(t).
An FM signal with frequency deviation of 90 kHz and modulating signal bandwidth of 5 kHz is applied to this device. The bandwidth of the output signal is

A. 370 kHz
B. 190 kHz
C. 380 kHz
D. 95kHz
_________________________

5. The cascade http://koolkareers.com/gate/sample-papers/ece-paper-2/# - - amplifier is a multistage configuration of

A. CC-CB
B. CE-CB
C. CB-CC
D. CE-CC


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Replies:
Posted By: Neha Agarwal
Date Posted: 15Feb2007 at 12:41pm
Ans for above questions......

1-D

2-A

3-A

4-C

5-B


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http://onestopgate.com/gate-preparation// - http://onestopgate.com/gate-preparation//

Posted By: mastro
Date Posted: 05Jun2007 at 6:29am
Neha... can you elaborate the answers

Posted By: bero
Date Posted: 30Oct2007 at 6:20am
what is the question?

Posted By: nitin0108
Date Posted: 11Dec2007 at 8:42pm

1. In a series of RLC circuit, R=10 ohm, L=100 mH, C=10 http://forum.onestopgate.com/forum_posts.asp?TID=373&PD=0# -
A. 5
B. 1000 rad/sec
C. 15.92 Hz
D. 0.2
_________________________

2. The impulse response h[n] of a linear time-invariant http://forum.onestopgate.com/forum_posts.asp?TID=373&PD=0# -
A. stable but not causal
B. stable and causal
C. causal but unstable
D. unstable and not causal
_________________________

3. In what range should Re(s) remain so that the Laplace transform of the function e(a+2)t+5 exits?

A. Re (s) > a + 2
B. Re (s) > a + 7
C. Re (s) < 2
D. Re (s) > a + 5
_________________________

4. A device with input x(t) and output y(t) is characterized by: y(t) = x^2(t).
An FM signal with frequency deviation of 90 kHz and modulating signal http://forum.onestopgate.com/forum_posts.asp?TID=373&PD=0# -
A. 370 kHz
B. 190 kHz
C. 380 kHz
D. 95kHz
_________________________

5. The cascade http://koolkareers.com/gate/sample-papers/ece-paper-2/# - A. CC-CB
B. CE-CB
C. CB-CC
D. CE-CC


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