Signals and Systems
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rvinothkumar E&I-HICET
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22 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is not an example of signal
Blood Pressure
temperatre
aircraft
speech
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The signal which is defined only at origin i.e only at t=0 is
unit step signal
impulse signal
exponential signal
ramp signal
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Graphical representation of a signal in time domain is called
Frequency Spectrum
Frequency
Waveform
None of the above
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An example of a discrete set of information/system is
the trajectory of the Sun
data on a CD
universe time scale
movement of water through a pipe
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Under which conditions does an initially relaxed system become unstable?
only if bounded input generates unbounded output
only if bounded input generates bounded output
only if unbounded input generates unbounded output
only if unbounded input generates bounded output
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of this is not a type of analog modulation
amplitude modulation
frequency modulation
phase modulation
frequency shift keying
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Unit Step function is defined by
u(n) = 1, n ≥ 0
= 0, n < 0
u(n) = 1, n = 0
= 0, n ≠ 1
u(n) = 1, n ≤ 0
= 0, n ≠ 1
u(n) = 1, n ≤ 0
= 0, n ≥ 1
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