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First Test in Signals and Systems (SS) for Electronics and Telecommunication Engineering, Exercises of Signals and Systems

Question paper on basics of signals and systems

Typology: Exercises

2019/2020

Uploaded on 03/10/2020

vvpiet-solapur
vvpiet-solapur 🇮🇳

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VidyaVikasPratishtan
Institute of Engineering & Technology, Solapur
Department of Electronics and telecommunication engineering
(Academic Year 2019-20)
First Test Subject: - SS Date: 11/02/2020
Class: - SY Time: -1-2 pm Max. Marks- 20
Q.1. Multiple choice questions (1*5=5)
1. If x[4-n] is derived from the x[n] by which transformation?
a) Reversal and shift b) reversal only c) Scaling d) scaling and shifting
2. Mathematically unit impulse is a derivative of
a) Unit step b) unit ramp c) Unit parabola d) none
3. With u(n) as unit step function, u(n)-u(n-1) is
a) δ(n) b) δ(n)+ δ(n-1) c) δ(n)- δ(n-1) d) δ(n)+ δ(n+1)
4. With u(n) as unit step function, u(n)-u(n-2) is
a) δ(n) b) δ(n)+ δ(n-1) c) δ(n)- δ(n-2) d) δ(n)+ δ(n+1)
5. A discrete time signal is represented as
a) x(n) b) x(t) c) u(n) d) δ(n)
6. Time transformations are
a) Time shifting b) Time scaling c) Time reversal d) All
Q.2. Attempt any three (5*3=15)
a) Explain the Even and Odd signal with example.
b) Find even and odd part of following signal
c) For the signal shown in fig. find following 1. x(2t+1) 2. x(3-2t)
d) For the signal shown in fig. find following 1. x(n-1) 2.x(2-n)
e) Find energy or power signal x(t)=cost
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Download First Test in Signals and Systems (SS) for Electronics and Telecommunication Engineering and more Exercises Signals and Systems in PDF only on Docsity!

VidyaVikasPratishtan

Institute of Engineering & Technology, Solapur

Department of Electronics and telecommunication engineering

(Academic Year 2019-20)

First Test Subject: - SS Date: 11/02/ Class: - SY Time: -1-2 pm Max. Marks- 20 Q.1. Multiple choice questions (15=5)*

  1. If x[4-n] is derived from the x[n] by which transformation? a) Reversal and shift b) reversal only c) Scaling d) scaling and shifting
  2. Mathematically unit impulse is a derivative of a) Unit step b) unit ramp c) Unit parabola d) none
  3. With u(n) as unit step function, u(n)-u(n-1) is a) δ(n) b) δ(n)+ δ(n-1) c) δ(n)- δ(n-1) d) δ(n)+ δ(n+1)
  4. With u(n) as unit step function, u(n)-u(n-2) is a) δ(n) b) δ(n)+ δ(n-1) c) δ(n)- δ(n-2) d) δ(n)+ δ(n+1)
  5. A discrete time signal is represented as a) x(n) b) x(t) c) u(n) d) δ(n)
  6. Time transformations are a) Time shifting b) Time scaling c) Time reversal d) All Q.2. Attempt any three (53=15)* a) Explain the Even and Odd signal with example. b) Find even and odd part of following signal c) For the signal shown in fig. find following 1. x(2t+1) 2. x(3-2t) d) For the signal shown in fig. find following 1. x(n-1) 2.x(2-n) e) Find energy or power signal x(t)=cost