Communication Electronics Chapter 1 Quiz
24 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What has largely replaced vacuum tubes in electronic communications?

  • Transistors (correct)
  • Digital circuits
  • Amplifiers
  • Resistors
  • Which of the following describes the primary purpose of the book mentioned in the content?

  • To introduce basic electronic communications fundamentals (correct)
  • To review advanced mathematical principles
  • To provide a history of electronic communications
  • To explore quantum computing principles
  • Which technique involves combining multiple signals into one for transmission?

  • Frequency modulation
  • Signal-to-noise ratio optimization
  • Time division multiplexing (correct)
  • Demodulation
  • What is the significance of noise figure in signal analysis?

    <p>It quantifies the degradation of signal-to-noise ratio.</p> Signup and view all the answers

    What increasingly necessitates the adoption of digital electronics in communication circuits?

    <p>Increase in digital and data communication systems</p> Signup and view all the answers

    What basic concept is EXPLAINED in Chapter 1 related to communications?

    <p>Fourier analysis approaches</p> Signup and view all the answers

    Which principle is NOT considered a fundamental term in electronic communications?

    <p>Noise cancellation</p> Signup and view all the answers

    To better understand the concepts in the book, familiarity with which mathematical principle is mentioned as helpful?

    <p>Calculus</p> Signup and view all the answers

    Which of the following methods is NOT a predominant technique for multiple accessing?

    <p>Wave-division</p> Signup and view all the answers

    What are the components of the simplest communication system?

    <p>Source, destination, and transmission medium</p> Signup and view all the answers

    What is a disadvantage of fiber optic communications compared to traditional methods?

    <p>Higher installation costs</p> Signup and view all the answers

    What is the primary purpose of the Smith chart as described in the appendix?

    <p>For visual representation of reflection coefficients</p> Signup and view all the answers

    Which type of light sources is typically used in fiber optic systems?

    <p>LEDs and lasers</p> Signup and view all the answers

    Which aspect of information transmission has seen dramatic changes over time?

    <p>The methods of implementation</p> Signup and view all the answers

    What type of communication system is indicated by having a source, destination, and medium?

    <p>Digital communication system</p> Signup and view all the answers

    Which statement accurately describes electronic communications?

    <p>It encompasses transmission, reception, and processing of information.</p> Signup and view all the answers

    What is the primary reason for converting analog information to digital form for transmission?

    <p>Digital signals can be easily processed and transmitted.</p> Signup and view all the answers

    What does the term 'modulate' refer to in communications systems?

    <p>Varying or changing a signal to carry information.</p> Signup and view all the answers

    In a communications system, what is the purpose of the carrier wave?

    <p>To encode the modulating signal for transmission.</p> Signup and view all the answers

    Which of the following correctly defines the modulating signal in a communications system?

    <p>The signal that carries the original information.</p> Signup and view all the answers

    Why is it impractical to propagate low-frequency electromagnetic energy through the atmosphere in radio communications?

    <p>Atmospheric absorption affects low frequencies more severely.</p> Signup and view all the answers

    What must be done with digital data before transmission in an analog communications system?

    <p>Convert digital data to analog signals.</p> Signup and view all the answers

    Which of the following components is not directly involved in the modulation process?

    <p>Receiver.</p> Signup and view all the answers

    What is one of the main functions of demodulation in a communications system?

    <p>To retrieve the original modulating signal from a transmitted signal.</p> Signup and view all the answers

    Study Notes

    Book Title

    • Electronic Communications Systems

    Book Author

    • Wayne Tomasi

    Book Publisher

    • Prentice Hall

    Book Contents

    • Fundamentals through Advanced Electronic Communications Systems
    • Includes chapters on various topics in the field of communications

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Description

    Test your knowledge on the key concepts presented in Chapter 1 of the Communication Electronics textbook. This quiz covers various topics including vacuum tubes, signal transmission techniques, noise figures, and the importance of digital electronics in communication circuits. Enhance your understanding of the foundational principles in electronic communications.

    More Like This

    Use Quizgecko on...
    Browser
    Browser