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  • Question
  • Convert the fractional binary number 0000.1010 to decimal.


  • Options
  • A. 0.625
  • B. 0.50
  • C. 0.55
  • D. 0.10

  • Correct Answer
  • 0.625 


  • Digital Concepts problems


    Search Results


    • 1. What is the typical invalid voltage for a binary signal?

    • Options
    • A. 0.7?2.8 volts
    • B. 0.8?3 volts
    • C. 0.8?2 volts
    • D. 0.7?2.5 volts
    • Discuss
    • 2. A DAC changes ________.

    • Options
    • A. an analog signal into digital data
    • B. digital data into an analog signal
    • C. digital data into an amplified signal
    • D. none of the above
    • Discuss
    • 3. What are the symbols used to represent digits in the binary number system?

    • Options
    • A. 0,1
    • B. 0,1,2
    • C. 0 through 8
    • D. 1,2
    • Discuss
    • 4. Which of the following is not an analog device?

    • Options
    • A. Thermocouple
    • B. Current flow in a circuit
    • C. Light switch
    • D. Audio microphone
    • Discuss
    • 5. The holes through a PC board are ________.

    • Options
    • A. smaller with SMT than with through-hole mounting
    • B. larger with SMT than with through-hole mounting
    • C. the same size as with through-hole mounting
    • D. usually unnecessary
    • Discuss
    • 6. Convert the fractional decimal number 6.75 to binary.

    • Options
    • A. 0111.1100
    • B. 0110.1010
    • C. 0110.1100
    • D. 0110.0110
    • Discuss
    • 7. A type of digital circuit technology that uses bipolar junction transistors is ________.

    • Options
    • A. TTL
    • B. CMOS
    • C. LSI
    • D. NMOS
    • Discuss
    • 8. A full subtracter circuit requires ________.

    • Options
    • A. two inputs and two outputs
    • B. two inputs and three outputs
    • C. three inputs and one output
    • D. three inputs and two outputs
    • Discuss
    • 9. A demultiplexer has ________.

    • Options
    • A. one data input and a number of selection inputs, and they have several outputs
    • B. one input and one output
    • C. several inputs and several outputs
    • D. several inputs and one output
    • Discuss
    • 10. What has happened to the advances in digital technologies over the past three decades?

    • Options
    • A. Slowed down considerably
    • B. Continued to increase, but at a decreasing rate
    • C. Made excellent progress
    • D. Nothing short of phenomenal
    • Discuss


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