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Home Digital Electronics Combinational Logic Circuits See What Others Are Saying!
  • Question
  • How many outputs would two 8-line-to-3-line encoders, expanded to a 16-line-to-4-line encoder, have?


  • Options
  • A. 3
  • B. 4
  • C. 5
  • D. 6

  • Correct Answer


  • Tags: Bank Exams

    More questions

    • 1. A push-button switch is used to input data to a register. The output of the register is erratic. What could be causing the problem?

    • Options
    • A. The power supply is probably noisy.
    • B. The switch contacts are bouncing.
    • C. The socket contacts on the register IC are corroded.
    • D. The register IC is intermittent and failure is imminent.
    • Discuss
    • 2. The power dissipation of a CMOS IC will ________.

    • Options
    • A. decrease with frequency
    • B. increase with gate size
    • C. decrease with gate size
    • D. increase with frequency
    • Discuss
    • 3. Which of the following is not a weighted value positional numbering system:

    • Options
    • A. hexadecimal
    • B. binary-coded decimal
    • C. binary
    • D. octal
    • Discuss
    • 4. ________ ADCs have a fixed value of conversion time that is not dependent on the value of the analog input.

    • Options
    • A. Substandard
    • B. Dual
    • C. Recessive-approximation
    • D. Successive-approximation
    • Discuss
    • 5. A correct output is achieved from a master-slave J-K flip-flop only if its inputs are stable while the:

    • Options
    • A. clock is LOW
    • B. slave is transferring
    • C. flip-flop is reset
    • D. clock is HIGH
    • Discuss
    • 6. In VHDL, macrofunctions is/are:

    • Options
    • A. digital circuits.
    • B. analog circuits.
    • C. a set of bit vectors.
    • D. preprogrammed TTL devices.
    • Discuss
    • 7. A J-K flip-flop is in a "no change" condition when ________.

    • Options
    • A. J = 1, K = 1
    • B. J = 1, K = 0
    • C. J = 0, K = 1
    • D. J = 0, K = 0
    • Discuss
    • 8. PMOS and NMOS circuits are used largely in ________.

    • Options
    • A. MSI functions
    • B. LSI functions
    • C. diode functions
    • D. TTL functions
    • Discuss
    • 9. ________ counters are often used whenever pulses are to be counted and the results displayed in decimal.

    • Options
    • A. Synchronous
    • B. Bean
    • C. Decade
    • D. BCD
    • Discuss
    • 10. Assume that in a certain 4-bit weighted ladder DAC, the input representing the most significant bit is applied to a 20 kΩ resistor. What is the size of the resistor that represents the least significant bit?

    • Options
    • A. 2.5 kΩ
    • B. 5 kΩ
    • C. 80 kΩ
    • D. 160 kΩ
    • Discuss


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