Logic gates 200+ MCQs exam based

logic gates 200 MCQs || latest 2022

1. The logical gates are categorized into _______

  • One group
  • Two groups
  • Three groups
  • Four groups

2. __________ are basic gate.

  • NAND & NOR
  • AND
  • NOT, AND, & OR
  • None

3. __________ are universal gates

  • NAND & NOR
  • AND
  • NOT
  • None

4. __________ are arithmetic gates

  • NAND & NOR
  • NOT & NOR
  • X-OR & X-NOR
  • None

5. The basic gate of the TTL logic family is _____

  • NAND
  • NOT
  • NOR
  • None of the above

6. The basic gate of the ECL logic family is _____

  • NAND
  • NOT
  • OR/ NOR
  • XOR

7. The power dissipation in the ECL logic family is ______

  • 30mv
  • 40-55mv
  • 50-80mv
  • 60-90mv

8. Which IC is a dual four-input AND gate?

  • 74LS13
  • 74LS20
  • 74LS21
  • None of the above

9. Which one is a saturated bipolar logic family?

  • RTL
  • Schottky TTL
  • ECL
  • None of the above

10. The code where all successive numbers differ from their preceding number by single bit is __

  • Alphanumeric Code
  • gray code
  • blue code
  • None

11. How many AND gates are required to realize Y = AD + EF + G?

  • 4
  • 5
  • 3
  • 2

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12. The NOR gate output will be high if the two inputs are __________

  • 11
  • 00
  • 01
  • 10

13. Which one is an unsaturated bipolar logic family?

  • RTL
  • Schottky TTL
  • DTL
  • none

14. How many types of logic families are there ?

  • One
  • Two
  • Three
  • Four

15. The power dissipation in the DTL logic family is ________

  • 1-12mv
  • 4-12mv
  • 6-12mv
  • 8-12mv

16. What are the components used in COS logic family ?

  • PMOS
  • NMOS
  • Both a and b
  • None of the above

17. Which IC is a dual four-input NAND gate ?

  • 74LS20
  • 74LS21
  • 74LS27
  • None of the above

18. The DTL logic family has _________

  • Improved noise margin and fan-out
  • Low speed
  • Both a and b
  • None of the above

19. What is the standard form of DCDVS logic?

  • Differential Cascade Voltage Switch
  • Differential Cascade Voltage Complex
  • Voltage Switched
  • None

20. _________ are the common forms of complex logic gates.

  • OR-AND-Invert (OAI)
  • AND-OR-Invert (AOI)
  • Both OAI and AOI
  • None of the above

21. _______ are basic gates

  • NAND
  • NOT, AND, & OR
  • AND
  • None

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