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MCQs

Total Questions : 457 | Page 8 of 46 pages
Question 71. A shift register moves the _____ left or right. Serial loading means storing a word in a shift register by entering _____ bit per clock pulse. With parallel or broadside loading, it takes only one _____ pulse to load the input word.
  1.    light, eight, clock
  2.    right, eight, clock
  3.    bits, one, register
  4.    bits, one, clock
  5.    None of the above
 Discuss Question
Answer: Option D. -> bits, one, clock
Question 72. A flip-flop can store:
  1.    1 bits of data
  2.    2 bits of data
  3.    3 bits of data
  4.    4 bits of data
  5.    None of the above
 Discuss Question
Answer: Option A. -> 1 bits of data
Question 73. Cyclic codes are used in
  1.    data transfer
  2.    continuously varying signal representation
  3.    arithmetic and logical computation
  4.    All of the above
  5.    None of the above
 Discuss Question
Answer: Option B. -> continuously varying signal representation
Question 74. A logic circuit which is used to change a BCD number into an equivalent decimal number is
  1.    decoder
  2.    encoder
  3.    multiplexer
  4.    code converter
  5.    None of the above
 Discuss Question
Answer: Option A. -> decoder
Question 75. The digits used in a binary number system are _____ and _____
  1.    9 and 0
  2.    0 and 1
  3.    1 and 2
  4.    3 and 4
  5.    None of the above
 Discuss Question
Answer: Option B. -> 0 and 1
Question 76. The 2-input XOR gate has a high output only when the input bits are _____
  1.    even
  2.    different
  3.    low
  4.    high
  5.    None of the above
 Discuss Question
Answer: Option B. -> different
Question 77. Conversion of binary number 10010102 to to its decimal number is
  1.    7410
  2.    9710
  3.    7210
  4.    6310
  5.    None of the above
 Discuss Question
Answer: Option A. -> 7410
Question 78. Conversion of binary number 1100002 to hexadecimal is
  1.    3016
  2.    4016
  3.    4316
  4.    2716
  5.    None of the above
 Discuss Question
Answer: Option A. -> 3016
Question 79. A combinational logic circuit which generates particular binary word or number is
  1.    decoder
  2.    multiplexer
  3.    encoder
  4.    demultiplexer
  5.    None of the above
 Discuss Question
Answer: Option B. -> multiplexer
Question 80. The 1's compliment of binary number 11010 is:
  1.    101
  2.    10
  3.    110
  4.    11101
  5.    None of the above
 Discuss Question
Answer: Option A. -> 101

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