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MCQs

Total Questions : 228 | Page 7 of 23 pages
Question 61. The 2's compliment of binary number 010111.1100 is
  1.    101000.01
  2.    10111.0011
  3.    None of these
  4.    101001.11
  5.    101000.0011
 Discuss Question
Answer: Option A. -> 101000.01
Question 62. Conversion of an octal number 74328 to a binary number is
  1.    1111000110102
  2.    1111111110002
  3.    11110001101112
  4.    None of these
  5.    1100110101112
 Discuss Question
Answer: Option A. -> 1111000110102
Question 63. In boolean algebra, the times sign stands for the _____ operation
  1.    NOR
  2.    None of these
  3.    NAND
  4.    AND
  5.    OR
 Discuss Question
Answer: Option D. -> AND
Question 64. Conversion of an octal number 1438 to hexadecimal number is
  1.    6316
  2.    5016
  3.    6016
  4.    None of these
  5.    5716
 Discuss Question
Answer: Option A. -> 6316
Question 65. What logic function is obtained by adding an inverter to the output of an AND gate?
  1.    None of these
  2.    OR
  3.    XOR
  4.    NOR
  5.    NAND
 Discuss Question
Answer: Option E. -> NAND
Question 66. A byte is consist of _____ bits
  1.    eight
  2.    None of these
  3.    ten
  4.    two
  5.    four
 Discuss Question
Answer: Option A. -> eight
Question 67. The memory cell of a dynamic RAM is simpler and smaller than the memory cell of a _____ RAM.
  1.    None of these
  2.    volatile
  3.    semiconductor
  4.    static
  5.    bipolar
 Discuss Question
Answer: Option D. -> static
Question 68. What is the 1's complement of 0000 1111 0010 1101 number?
  1.    1111 0000 1101 0010
  2.    1111 1100 1010 1100
  3.    None of these
  4.    1001 0010 1010 1100
  5.    1111 0000 0010 1101
 Discuss Question
Answer: Option A. -> 1111 0000 1101 0010
Question 69. A NAND gate is equivalent to an AND gate followed by an inverter. All inputs must be _____ to get a low output
  1.    None of these
  2.    0's
  3.    low
  4.    some low and some high
  5.    high
 Discuss Question
Answer: Option E. -> high
Question 70. Addition of 11012 and 10102 is
  1.    101012
  2.    110002
  3.    None of these
  4.    110112
  5.    101112
 Discuss Question
Answer: Option E. -> 101112

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