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9th Grade > Mathematics

NUMBER SYSTEMS MCQs

Total Questions : 197 | Page 8 of 20 pages
Question 71. . Convert hexadecimal value C1 to binary.
  1.    11000001
  2.    1000111
  3.    111000100
  4.    111000001
 Discuss Question
Answer: Option A. -> 11000001
Question 72. . Convert the following octal number to decimal.
178
  1.    51
  2.    82
  3.    57
  4.    15
 Discuss Question
Answer: Option D. -> 15
Question 73. . How many binary digits are required to count to 10010?
  1.    7
  2.    2
  3.    3
  4.    100
 Discuss Question
Answer: Option A. -> 7
Question 74. . Convert the following binary number to octal.
0101111002
  1.    1728
  2.    2728
  3.    1748
  4.    2748
 Discuss Question
Answer: Option D. -> 2748
Question 75. . The BCD number for decimal 347 is ________.
  1.    1100 1011 1000
  2.    0011 0100 0111
  3.    0011 0100 0001
  4.    1100 1011 0110
 Discuss Question
Answer: Option B. -> 0011 0100 0111
Question 76. . The sum of 11101 + 10111 equals ________.
  1.    110011
  2.    100001
  3.    110100
  4.    100100
 Discuss Question
Answer: Option C. -> 110100
Question 77. . The binary number for octal 458 is ________.
  1.    100010
  2.    100101
  3.    110101
  4.    100100
 Discuss Question
Answer: Option B. -> 100101
Question 78. . Convert the following binary number to decimal.
100110102
  1.    154
  2.    155
  3.    153
  4.    157
 Discuss Question
Answer: Option A. -> 154
Question 79. . A binary number's value changes most drastically when the ________ is changed.
  1.    MSB
  2.    frequency
  3.    LSB
  4.    duty cycle
 Discuss Question
Answer: Option A. -> MSB
Question 80. . The decimal number for octal 748 is ________.
  1.    74
  2.    60
  3.    22
  4.    62
 Discuss Question
Answer: Option B. -> 60

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