Ultrasound Basics Quiz
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Questions and Answers

What is the frequency range of ultrasound?

  • 20,000 Hz exactly
  • Less than 20 Hz
  • 20 Hz to 20,000 Hz
  • More than 20,000 Hz (correct)

    • What is the purpose of the transmitter in the HC-SR04 ultrasonic distance sensor?

  • Listens for the transmitted pulses
  • Supplies power to the sensor
  • Converts electrical signal into 40 KHz ultrasonic sound pulses (correct)
  • Produces an output pulse proportional to distance

    • What is the max range for non-contact detection of the HC-SR04 sensor?

  • ~13 feet
  • 4m (correct)
  • ~10 feet
  • ~5 meters

    • What is the measuring angle of the HC-SR04 ultrasonic sensor?

    <p>15 degrees</p> Signup and view all the answers

    What is the operating voltage of the HC-SR04 ultrasonic sensor?

    <p>DC 5V</p> Signup and view all the answers

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