Digital Electronics and Logic Design MCQs with answers Page - 23

Here, you will find a collection of MCQ questions on Digital Electronics and Logic Design. Go through these questions to enhance your preparation for upcoming examinations and interviews.

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Q. Which of the following gates is known as coincidence detector ?

  • (A) and gate
  • (B) or gate
  • (C) not gate
  • (D) nand gate

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Q. A positive AND gate is also a negative

  • (A) nand gate
  • (B) nor gate
  • (C) and gate
  • (D) or gate

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Q. An OR gate can be imagined as

  • (A) switches connected in series
  • (B) switches connected in parallel
  • (C) mos transistors connected in series
  • (D) none of these

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Q. Which combination of gates does not allow the implementation of an arbitrary boolean function?

  • (A) or gates and and gates only
  • (B) or gates and exclusive or gate only
  • (C) or gates and not gates only
  • (D) nand gates only

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Q. The output of NOR gate is

  • (A) high if all of its inputs are high
  • (B) low if all of its inputs are low
  • (C) high if all of its inputs are low
  • (D) high if only of its inputs is low

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Q. A toggle operation cannot be performed using a single

  • (A) nor gate
  • (B) and gate
  • (C) nand gate
  • (D) xor gate

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Q. Which of the following is the fastest logic

  • (A) ttl
  • (B) ecl
  • (C) cmos
  • (D) lsi

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Q. The digital logic family which has the lowest propagation delay time is

  • (A) ecl
  • (B) ttl
  • (C) cmos
  • (D) pmos

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Q. Which TTL logic gate is used for wired ANDing

  • (A) open collector output
  • (B) totem pole
  • (C) tri state output
  • (D) ecl gates

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Q. CMOS circuits consume power

  • (A) equal to ttl
  • (B) less than ttl
  • (C) twice of ttl
  • (D) thrice of ttl

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