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  • Question

  • The duty cycle of a square wave is ________.


  • Options
  • A. 10%
  • B. 25%
  • C. 50%
  • D. 100%

  • Correct Answer
  • 50% 

    • Digital Concepts problems

    Search Results

    • 1. The controls on an oscilloscope that will help obtain a stable display are in the ________.

    • Options
    • A. vertical section
    • B. horizontal section
    • C. trigger section
    • D. display section
      • Discuss
    • 2. The digit that changes most often when counting is called the ________.

    • Options
    • A. LSB
    • B. LL Bean
    • C. LED
    • D. LCD
      • Discuss
    • 3. The horizontal axis of an oscilloscope is normally calibrated in units of ________.

    • Options
    • A. voltage
    • B. current
    • C. time
    • D. frequency
      • Discuss
    • 4. Digital systems have ________.

    • Options
    • A. one state
    • B. two states
    • C. three states
    • D. four states
      • Discuss
    • 5. It is possible to have an overlap between high and low levels in digital logic.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. A set of instructions for a computer is called a(n) ________.

    • Options
    • A. instruction manual
    • B. logic unit
    • C. program
    • D. diagram
      • Discuss
    • 7. In ________ transmission, a single conductor is used.

    • Options
    • A. digital
    • B. automatic
    • C. serial
    • D. binary
      • Discuss
    • 8. In ________ the quantities are not represented by continuously variable indicators.

    • Options
    • A. analog representation
    • B. digital representation
    • C. signal representation
    • D. computer representation
      • Discuss
    • 9. The CPU contains all the circuitry for ________.

    • Options
    • A. storing data
    • B. keeping track of time
    • C. fetching and interpreting instructions
    • D. Internet operations
      • Discuss
    • 10. In a negative logic system, the area represented by #3 in the given figure would be the ________ level.


    • Options
    • A. HIGH
    • B. LOW
    • C. off
    • D. uncertain
      • Discuss

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