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MCQs

Total Questions : 228 | Page 9 of 23 pages
Question 81. Instead of counting with binary numbers, a ring counter uses words that have a single high _____
  1.    None of these
  2.    bit
  3.    gate
  4.    bytes
  5.    chip
 Discuss Question
Answer: Option B. -> bit
Question 82. What is the decimal equivalent of 210?
  1.    16
  2.    4096
  3.    1024
  4.    None of these
  5.    1000
 Discuss Question
Answer: Option C. -> 1024
Question 83. Multiplication of 1112 by 1012 is
  1.    1111002
  2.    None of these
  3.    1100112
  4.    1000112
  5.    1012
 Discuss Question
Answer: Option D. -> 1000112
Question 84. For what logic gate the outputs in complement of the input?
  1.    None of these
  2.    AND
  3.    XOR
  4.    NOT
  5.    OR
 Discuss Question
Answer: Option D. -> NOT
Question 85. The number of binary bits required to represent a hexadecimal digit is
  1.    8
  2.    4
  3.    6
  4.    None of these
  5.    3
 Discuss Question
Answer: Option B. -> 4
Question 86. The output of the following gate is 0 only if at least one of the inputs is 1:
  1.    None of these
  2.    EX-OR gate
  3.    NOR gate
  4.    AND gate
  5.    OR gate
 Discuss Question
Answer: Option C. -> NOR gate
Question 87. In which of the following adder circuits, the carry look ripple delay is eliminated?
  1.    Parallel adder
  2.    None of these
  3.    Half adder
  4.    Full adder
  5.    Carry-look-ahead adder
 Discuss Question
Answer: Option E. -> Carry-look-ahead adder
Question 88. With positive clocking the clock signal must be _____ for the flip-flop to respond.
  1.    race
  2.    low
  3.    high
  4.    None of these
  5.    set
 Discuss Question
Answer: Option C. -> high
Question 89. The maximum number of TTL loads that a TTL device can drive reliably over the specified temperature range is
  1.    bipolar
  2.    None of these
  3.    fanout
  4.    universal logic circuit
  5.    chip
 Discuss Question
Answer: Option C. -> fanout
Question 90. Conversion of hexadecimal number 6B216 to it's binary number equivalent is
  1.    None of these
  2.    11110001101112
  3.    110101100102
  4.    111111112
  5.    1100110011112
 Discuss Question
Answer: Option C. -> 110101100102

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