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MCQs

Total Questions : 228 | Page 20 of 23 pages
Question 191. The output of the following gate is 1 only if at least one of its inputs is 0.
  1.    NOR gate
  2.    None of these
  3.    AND gate
  4.    OR gate
  5.    NAND gate
 Discuss Question
Answer: Option E. -> NAND gate
Question 192. The highest decimal number that can be represented with 10 binary digits is
  1.    1023
  2.    512
  3.    None of these
  4.    1024
  5.    All of these
 Discuss Question
Answer: Option A. -> 1023
Question 193. The reduced form of the Boolean expression (A+B)(A+C) is:
  1.    AC+B
  2.    AB+AC
  3.    None of these
  4.    A+B+C
  5.    A+BC
 Discuss Question
Answer: Option E. -> A+BC
Question 194. The clock signals are used in sequential logic circuits
  1.    to tell how much time has elapsed since the system was turned on
  2.    to carry serial data signals
  3.    None of these
  4.    to synchronize events in various parts of a system
  5.    to tell the time of the day
 Discuss Question
Answer: Option D. -> to synchronize events in various parts of a system
Question 195. In boolean algebra, the overbar stands for the NOT operation, the plus sign stands for the _____ operation.
  1.    NOR
  2.    None of these
  3.    AND
  4.    OR
  5.    NAND
 Discuss Question
Answer: Option D. -> OR
Question 196. The radix of the binary number is:
  1.    10
  2.    2
  3.    3
  4.    None of these
  5.    1
 Discuss Question
Answer: Option B. -> 2
Question 197. A full-adder adds _____ bits, and producing a SUM and a _____
  1.    All of these
  2.    16, DIVIDE
  3.    None of these
  4.    8, SUBTRACTION
  5.    3, CARRY
 Discuss Question
Answer: Option E. -> 3, CARRY
Question 198. What is the ASCII code for T?
  1.    1011100
  2.    None of these
  3.    1011111
  4.    1010100
  5.    1011010
 Discuss Question
Answer: Option D. -> 1010100
Question 199. An XOR gate recognizes only words with an _____ number of 1's.
  1.    None of these
  2.    All of these
  3.    different
  4.    odd
  5.    even
 Discuss Question
Answer: Option D. -> odd
Question 200. Express 8192 in K units.
  1.    All of these
  2.    8K
  3.    8.192 k
  4.    None of these
  5.    8 x 103 K
 Discuss Question
Answer: Option B. -> 8K

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