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Describing Logic Circuits (Digital Electronics) Question and Answers-Page first

Describing Logic Circuits problems


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  • 1. Which step in this reduction process is using DeMorgan's theorem?

    Digital Electronics Describing Logic Circuits: Which step in this reduction process is using DeMorgan's theorem?


  • Options
  • A. STEP 1
  • B. STEP 2
  • C. STEP 3
  • D. STEP 4

  •           Discuss     

  • 2. Which of the figures given below represents an OR gate?

    Digital Electronics Describing Logic Circuits: Which of the figures given below represents an OR gate?


  • Options
  • A. a
  • B. b
  • C. c
  • D. d

  •           Discuss     

  • 3. A NOR gate with one HIGH input and one LOW input:

  • Options
  • A. will output a HIGH
  • B. functions as an AND
  • C. will not function
  • D. will output a LOW

  •           Discuss     

  • 4. What is the basic difference between AHDL and VHDL?

  • Options
  • A. ADHL is used in all PLD's.
  • B. VHDL is used in all PLD's.
  • C. ADHL is proprietary.
  • D. VHDL is proprietary.

  •           Discuss     

  • 5. The Boolean equation for a NOR function is:

  • Options
  • A.
  • B.
  • C.
  • D.

  •           Discuss     

  • 6. How are the statements between BEGIN and END not evaluated in VHDL?

  • Options
  • A. Constantly
  • B. Simultaneously
  • C. Concurrently
  • D. Sequentially

  •           Discuss     

  • 7. A NAND gate has:

  • Options
  • A. active-LOW inputs and an active-HIGH output.
  • B. active-LOW inputs and an active-LOW output.
  • C. active-HIGH inputs and an active-HIGH output.
  • D. active-HIGH inputs and an active-LOW output.

  •           Discuss     

  • 8. The format used to present the logic output for the various combinations of logic inputs to a gate is called a(n):

  • Options
  • A. truth table.
  • B. input logic function.
  • C. Boolean constant.
  • D. Boolean variable.

  •           Discuss     

  • 9. Which of the figures in figure (a to d) is equivalent to figure (e)?

    Digital Electronics Describing Logic Circuits: Which of the figures in figure (a to d) is equivalent to figure (e)?


  • Options
  • A. a
  • B. b
  • C. c
  • D. d

  • Tags: Bank Exams

  •           Discuss     

  • 10. Which of the following equations would accurately describe a 4-input OR gate when A = 1, B = 1, C = 0, and D = 0?

  • Options
  • A. 1 + 1 + 0 + 0 = 1
  • B. 1 + 1 + 0 + 0 = 01
  • C. 1 + 1 + 0 + 0 = 0
  • D. 1 + 1 + 0 + 0 = 00

  •           Discuss     


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