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Signals and Systems ECE Questions And Answers

Here you can find Signals and Systems ECE Questions and Answers.

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In this Signals and Systems ECE Questions and Answers section you can learn and practice Signals and Systems ECE Questions and Answers to improve your skills in order to face technical inerview conducted by Organisations. By Practicing these interview questions, you can easily crack any Competitive Exams interview.

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Signals and Systems ECE Questions & Answers

1. _________ is defined as any physical quantity that varies with time, space or any other independent variable

Signals and Systems ECE Questions & Answers

2. A discrete signal is said to be even or symmetric if x(-n) is equal to

Signals and Systems ECE Questions & Answers

3. A signal is a power signal when the signal has

Signals and Systems ECE Questions & Answers

4. Which of the following time system operates with a continuous time signal & produces a continuous time output signal

Signals and Systems ECE Questions & Answers

5. The function which relates output of a system to the input(signal) of a system is

Signals and Systems ECE Questions & Answers

6. A signal is an energy signal when the signal has

Signals and Systems ECE Questions & Answers

7. A discrete signal is said to be odd or asymmetric if x(-n) is equal to

Signals and Systems ECE Questions & Answers

8. A system is said to be dynamic if the output of the system depends on the

Signals and Systems ECE Questions & Answers

9. A system is said to be stable if the bounded input to the system produces

Signals and Systems ECE Questions & Answers

10. A system is said to be casual if the output of the system depends on the

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Signals and Systems - ECE - Questions and Answers

This is the electronics and communication engineering questions and answers section on " Signals and Systems " with an explanation for various interview, competitive examination and entrance test. Solved examples with detailed answer description, explanation are given and it would be easy to understand. This Signals and Systems ECE Quiz is designed for all the students and enthusiastic learners. Aspirants who are willing to learn Signals and Systems ECE Questions and Answers in simple and easy steps must refer to this article. This web page will give you a deep understanding of Signals and Systems ECE MCQ Questions concepts. After completing this Signals and Systems Questions Online Test, individuals will be at an intermediate level from where you can take yourself to a higher level. To know more data regarding Signals and Systems ECE Multiple Choice Questions check the below sections of this page.



Signals and Systems ECE Questions - Signals and Systems ECE Quiz Details

Online Test Name Signals and Systems
Exam Type Multiple Choice Questions
Category Electronics and Communication Engineering Quiz
Number of Questions 30 Questions


Before proceeding with this Signals and Systems ECE Quiz, wannabes must have a basic understanding of differential and integral calculus, limits and knowledge of mathematics. If candidates practice all the provided Signals and Systems ECE questions and answer it will be beneficial to ace any type of competitive exams or core based interviews or government exams like APGENCO. So practice well and get a dream job.



Signals and Systems ECE Quiz Topics Covered

Signals Classification, Signals Basic Operations, Signals Sampling Techniques, Systems Classification, Signals Analysis, Fourier Series, Fourier Series Properties, Fourier Series Types, Fourier Transforms, Fourier Transforms Properties, Region of Convergence, Distortion Less Transmission, Hilbert Transform, Convolution and Correlation, Signals Sampling Theorem, Laplace Transforms, Laplace Transforms Properties, Z-Transforms (ZT), Z-Transforms Properties are the main topics in the Signals and Systems ECE Quiz. If postulate wants to score more marks, then need to practice the questions and answers based on the Signals and Systems.

Signals and Systems ECE MCQ Quiz Answers With Solutions

Try and crack the Signals and Systems ECE online test and check out your world rank based on your performance. Candidates are you feeling bad about your performance then no need to worry. With the help of this page, intenders will get a detailed analysis of your Signals and Systems MCQ Quiz performance so that you can improve and hit back in next attempt. On this page, competitors can check their answers by clicking on the View Answer button. Moreover, people can do rough work by using the Workspace. To know more updates stay tuned to our web portal allindiaexams.in

21. For a band pass signal extends from 1 KHz to 2 KHz. Then the minimum sampling frequency that needed to retain all information of the sampled signal is
  • A. 1 KHz.
  • B. 2 KHz.
  • C. 3 KHz.
  • D. 4 KHz.
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Answer & Explanation

Answer: Option B

Explanation:

Minimum sampling frequency = 2(Bandwidth)= 2(2-1)=2KHz

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22. A continuous-time periodic signal x(t), having a period T, is convolved with itself. Then the resulting signal is
  • A. Not Periodic
  • B. Periodic having a period 2T
  • C. Periodic having a period T
  • D. Periodic having a period T/2
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Answer & Explanation

Answer: Option C

Explanation:

Convolution of a periodic signal of a period T when convoluted with itself will give the same period T

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23. Determine the Fourier transform of unit step x(t) = u(t)
  • A. 1/j ω
  • B. 1/2j ω
  • C. j ω
  • D. 2j ω
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Answer & Explanation

Answer: Option A

Explanation:


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24. The Fourier transform of u(t) is B(jω) & the laplace transform of u(t ) is A(s), then which of the following equation is satisfied
  • A.

    B(jω) = A(s)|s=jω

  • B. A(s) = 1/s but B(jω) ≠ 1/jω
  • C. A(s) ≠ 1/s but B(jω) = 1/jω
  • D. A(s) ≠ 1/s but B(jω) ≠ 1/jω
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Answer & Explanation

Answer: Option B

Explanation:

Laplace Transform of u(t)

U(t) àA(s) = 1/s

Fourier Transform of u(t)

U(t) à B(jω) =( 1/jω) + π δ(ω)

Therefore A(s) = 1/s but B(jω) ≠ 1/jω  is satisfied.

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25. The Inverse Fourier Transform of u(ω) is
  • A. (1/2) δ(t) + 1/Ï€t
  • B.

    ( ½)  Î´(t)

  • C. 2 δ(t) + 1/Ï€t
  • D. δ(t) +sgn(t)
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Answer & Explanation

Answer: Option A

Explanation:

x(t) = u(t) ßà X(jω) =( π δ(ω)/ J ω ) + 1

Duality Property: X(jt) ÃŸÃ  2Ï€ x(-ω)

U(ω) ßà (½) δ(t) + 1/Ï€t

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