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Home ‣ Electronics ‣ Flip-Flops and Timers Comments
  • Question

  • For an S-R flip-flop to be SET or RESET, the respective input must be __________.


  • Options
  • A. LOW
  • B. HIGH
  • C. installed with steering diodes
  • D. in parallel with a limiting resistor

  • Correct Answer
  • HIGH 

    • Flip-Flops and Timers problems

    Search Results

    • 1. One example of the use of an S-R flip-flop is as a(n) _________.

    • Options
    • A. racer
    • B. binary storage register
    • C. astable oscillator
    • D. transition pulse generator
      • Discuss
    • 2. Pulse-triggered flip-flops are also called _________ flip-flops.

    • Options
    • A. master-slave
    • B. postponed
    • C. level
    • D. edge
      • Discuss
    • 3. An S-R flip-flop can be triggered by ______, ______, or ________.

    • Options
    • A. HIGHs, LOWs, PRESETs
    • B. edges, levels, pulses
    • C. HIGHs, LOWs, CLEARs
    • D. SETs, RESETs, HIGHs
      • Discuss
    • 4. The toggle condition in a master-slave J-K flip-flop means that Q and will switch to their ________ state(s) at the _____________________.

    • Options
    • A. inverted, positive clock edge
    • B. quiescent, negative clock edge
    • C. opposite, active clock edge
    • D. reset, synchronous clock edge
      • Discuss
    • 5. If an input is activated by a signal transition, it is _____________.

    • Options
    • A. edge-triggered
    • B. toggle-triggered
    • C. clock-triggered
    • D. noise-triggered
      • Discuss
    • 6. Two half adders can be combined to form a full adder with no additional gates.

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. A technique to speed parallel addition by eliminating the delay caused by the carry bit propagation is called fast carry, or look-ahead carry.

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. Signed binary numbers have one bit that represents the sign, with the remaining bits representing the magnitude.

    • Options
    • A. True
    • B. False
      • Discuss
    • 9. If you borrow from a position that contains a 0, you must borrow from the more significant bit that contains a 1. All 0s up to that point become 1s, and the digit last borrowed from becomes a 0.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. Using the two's complement number system we can add numbers with like signs and obtain the correct result.

    • Options
    • A. True
    • B. False
      • Discuss

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