Digital Logic Circuits (DLC) MCQs with answers Page - 3

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Q. In RTL NOR gate, the output is at logic 1 only when all the inputs are at

  • (A) logic 0
  • (B) logic 1
  • (C) +10v
  • (D) floating

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Q. The full form of CMOS is

  • (A) capacitive metal oxide semiconductor
  • (B) capacitive metallic oxide semiconductor
  • (C) complementary metal oxide semiconductor
  • (D) complemented metal oxide semiconductor

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Q. The full form of COS-MOS is

  • (A) complementary symmetry metal oxide semiconductor
  • (B) complementary systematic metal oxide semiconductor
  • (C) capacitive symmetry metal oxide semiconductor
  • (D) complemented systematic metal oxide semiconductor

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Q. CMOS is also sometimes referred to as

  • (A) capacitive metal oxide semiconductor
  • (B) capacitive symmetry metal oxide semiconductor
  • (C) complementary symmetry metal oxide semiconductor
  • (D) complemented symmetry metal oxide semiconductor

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Q. CMOS technology is used in

  • (A) inverter
  • (B) microprocessor
  • (C) digital logic
  • (D) both microprocessor and digital logic

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Q. Standard TTL circuits operate with a volt power supply.

  • (A) 2
  • (B) 4
  • (C) 5
  • (D) 3

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Q. A TTL gate may operate inadvertently as an

  • (A) digital amplifier
  • (B) analog amplifier
  • (C) inverter
  • (D) regulator

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Q. Which statement below best describes a Karnaugh map?

  • (A) it is simply a rearranged truth table
  • (B) the karnaugh map eliminates the need for using nand and nor gates
  • (C) variable complements can be eliminated by using karnaugh maps
  • (D) a karnaugh map can be used to replace boolean rules

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Q. Which of the examples below expresses the commutative law of multiplication?

  • (A) a + b = b + a
  • (B) a • b = b + a
  • (C) a • (b • c) = (a • b) • c
  • (D) a • b = b • a

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Q. The Boolean expression Y = (AB)’ is logically equivalent to what single gate?

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

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