Electronic Principles and Devices: Communication Systems Quiz
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Questions and Answers

What is communication?

  • The process of transmitting data without understanding
  • The process of creating a message without sharing it
  • The process of receiving messages without comprehension
  • The process of transmission of an idea or feeling so that the sender and receiver share the same level of understanding (correct)

    • What does an input transducer do in a communication system?

  • Amplifies the communication signals
  • Blocks the communication signals
  • Generates random noise in the communication system
  • Converts the message produced by a source to a form suitable for the communication system (correct)

    • What are the sources for an input transducer in a communication system?

  • Mechanical only
  • Auditory only
  • Analog or digital (correct)
  • Visual only

    • Which unit of study covers Introduction to Communication Systems?

    <p>Unit 4 - Class 56</p> Signup and view all the answers

    In a communication system, what example does the input transducer convert?

    <p>Speech, music, written text</p> Signup and view all the answers

    What constitutes a communication system?

    <p>Input Transducer, Message, Transmitter, Channel, Receiver, Output Transducer</p> Signup and view all the answers

    Which device converts the electrical signal into a signal suitable for transmission over a given medium?

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

    What is the physical medium on which the signal is carried known as?

    <p>Transmission channel</p> Signup and view all the answers

    What type of transducer requires an external power source for its operation?

    <p>Passive transducer</p> Signup and view all the answers

    What is the process of changing the carrier signal characteristics according to the message signal called?

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

    What type of modulation involves varying the amplitude of the carrier according to the message?

    <p>Amplitude Modulation (AM)</p> Signup and view all the answers

    Which type of modulation involves varying the frequency of the carrier according to the message?

    <p>Frequency Modulation (FM)</p> Signup and view all the answers

    In an ideal transmission, what is the receiver output?

    <p>Scaled and delayed version of the message signal</p> Signup and view all the answers

    Which electronic component converts electrical signals into a desired form by the system?

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

    What type of modulation is Amplitude Shift Keying (ASK)?

    <p>Digital Modulation</p> Signup and view all the answers

    What does a passive transducer require for its operation?

    <p>External power source for their operation</p> Signup and view all the answers

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