Digital Electronics and Logic Design MCQs with answers Page - 19

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. What is the advantage of using low-power Schottky (LS) over standard TTL logic?

  • (A) more power dissipation
  • (B) less power dissipation
  • (C) cost is less
  • (D) cost is more

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Q. The highest noise margin is offered by

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

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Q. What is the transitive voltage for the voltage input of a CMOS operating from 10V supply ?

  • (A) 1v
  • (B) 5v
  • (C) 10v
  • (D) 20v

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Q. Which of the following logic families is well suited for high-speed operations ?

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

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Q. Which of the following is the fastest logic?

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

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Q. he 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 of the following statements is wrong ?

  • (A) propagation delay is the time required for a gate to change its state
  • (B) noise immunity is the amount of noise which can be applied to the input of a gate without causing the gate to change state
  • (C) fan-in of a gate is always equal to fan-out of the same gate
  • (D) operating speed is the maximum frequency at which digital data can be applied to a gate

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Q. Which table shows the logical state of a digital circuit output for every possible combination of logical states in the inputs ?

  • (A) function table
  • (B) truth table
  • (C) routing table
  • (D) ascii table

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Q. The digital logic family which has minimum power dissipation is

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

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Q. In the following question, match each of the items A, B and C on the left with an approximation item on the right
A. Shift register can be used 1. for code conversion
B. A multiplexer can be used 2. to generate memory slipto select
C. A decoder can be used 3. for parallel to serial conversion
4. as many to one switch
5. for analog to digital conversion

  • (A) Shift register can be used 1. for code conversion
  • (B) A multiplexer can be used 2. to generate memory slipto select
  • (C) ---
  • (D) ---

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