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MCQs

Total Questions : 457 | Page 43 of 46 pages
Question 421. The output of the following gate is 1 only if at least one of its inputs is 0.
  1.    AND gate
  2.    OR gate
  3.    NAND gate
  4.    NOR gate
  5.    None of the above
 Discuss Question
Answer: Option C. -> NAND gate
Question 422. The highest decimal number that can be represented with 10 binary digits is
  1.    1023
  2.    1024
  3.    512
  4.    All of the above
  5.    None of the above
 Discuss Question
Answer: Option A. -> 1023
Question 423. In boolean algebra, the overbar stands for the NOT operation, the plus sign stands for the _____ operation.
  1.    AND
  2.    OR
  3.    NAND
  4.    NOR
  5.    None of the above
 Discuss Question
Answer: Option B. -> OR
Question 424. An XOR gate recognizes only words with an _____ number of 1's.
  1.    even
  2.    odd
  3.    different
  4.    All of the above
  5.    None of the above
 Discuss Question
Answer: Option B. -> odd
Question 425. A full-adder adds _____ bits, and producing a SUM and a _____
  1.    8, SUBTRACTION
  2.    3, CARRY
  3.    16, DIVIDE
  4.    All of the above
  5.    None of the above
 Discuss Question
Answer: Option B. -> 3, CARRY
Question 426. The reduced form of the Boolean expression (A+B)(A+C) is:
  1.    AB+AC
  2.    A+B+C
  3.    AC+B
  4.    A+BC
  5.    None of the above
 Discuss Question
Answer: Option D. -> A+BC
Question 427. The radix of the binary number is:
  1.    3
  2.    1
  3.    2
  4.    10
  5.    None of the above
 Discuss Question
Answer: Option C. -> 2
Question 428. Conversion of hexadecimal number 1D7F16 to a decimal number is
  1.    755110
  2.    877110
  3.    555710
  4.    778110
  5.    None of the above
 Discuss Question
Answer: Option A. -> 755110
Question 429. An inventor is a gate with only _____ input; the output is always in the opposite state from the input
  1.    one
  2.    two
  3.    more than one
  4.    All of the above
  5.    None of the above
 Discuss Question
Answer: Option A. -> one
Question 430. A microcomputer is a computer that uses a _____ for its CPU.
  1.    chips
  2.    registers
  3.    microprocessor
  4.    vacuum tube
  5.    None of the above
 Discuss Question
Answer: Option C. -> microprocessor

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