Number Systems and Codes Questions and Answers

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Q81
Convert hexadecimal C0B to binary.
  • A 110000001011
  • B 110000001001
  • C 110000001100
  • D 110100001011
Answer: Option A
Q82
Convert binary 1001 to hexadecimal.
  • A 916
  • B 1116
  • C 10116
  • D 1016
Answer: Option A
Q83
Convert 73116 to decimal.
  • A 216.4
  • B 985
  • C 3D9
  • D 1841
Answer: Option D
Q84
What is the decimal value of the hexadecimal number 777?
  • A 191
  • B 1911
  • C 19
  • D 19111
Answer: Option B
Q85
Convert 110010012 (binary) to decimal.
  • A 201
  • B 2001
  • C 20
  • D 210
Answer: Option A
Q86
Convert the following decimal number to octal.
  • A 638
  • B 368
  • C 478
  • D 748
Answer: Option C
Q87
The American Standard Code for Information Interchange (ASCII) uses how many individual pulses for any given character?
  • A 1
  • B 2
  • C 7
  • D 8
Answer: Option C
Q88
Convert the following hexadecimal number to decimal. B516
  • A 212
  • B 197
  • C 165
  • D 181
Answer: Option D
Q89
The BCD number for decimal 16 is ________.
  • A 00010110
  • B 00010000
  • C 00010010
  • D 11100000
Answer: Option A
Q90
Alphanumeric codes should include as a minimum:
  • A the capacity to represent the alphabet upper- and lowercase characters and the decimal numbers in a straight binary format.
  • B the capacity to code all possible decimal numbers in a direct octal representation of BCD codes.
  • C the alphabet upper- and lowercase letters, the decimal digits, the seven punctuation marks, and other characters or symbols.
  • D the ability to represent decimal numbers greater than 12810 in a straight binary format.
Answer: Option C

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