Digital Electronics and Logic Design MCQs with answers Page - 11

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. The expression is an example of Commutative Law for Multiplication.

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

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Q. The total amount of memory that is supported by any digital system depends upon

  • (A) the organization of memory
  • (B) the structure of memory
  • (C) the size of decoding unit
  • (D) the size of the address bus of the microproc essor

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Q. Addition of two octal numbers “36” and “71” results in

  • (A) 213
  • (B) 123
  • (C) 127
  • (D) 345

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Q. In which of the following base systems is 123 not a valid number?

  • (A) base 10
  • (B) base 16
  • (C) base8
  • (D) base 3

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Q. Storage of 1 KB means the following number of bytes

  • (A) 1000
  • (B) 964
  • (C) 1024
  • (D) 1064

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Q. What is the octal equivalent of the binary number: 10111101

  • (A) 675
  • (B) 275
  • (C) 572
  • (D) 573

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Q. The binary code of (21.125)10 is

  • (A) 10101.001
  • (B) 10100.001
  • (C) 10101.01
  • (D) 10100.111

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Q. A NAND gate is called a universal logic element because

  • (A) it is used by everybody
  • (B) any logic function can be realized by nand gates alone
  • (C) all the minization techniques are applicable for optimum nand gate realization
  • (D) many digital computers use nand gates.

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Q. Digital computers are more widely used as compared to analog computers, because they are

  • (A) less expensive
  • (B) always more accurate and faster
  • (C) useful over wider ranges of problem types
  • (D) easier to maintain.

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Q. Most of the digital computers do not have floating point hardware because

  • (A) floating point hardware is costly
  • (B) it is slower than software
  • (C) it is not possible to perform floating point addition by hardware
  • (D) of no specific reason.

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