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Questions
1 Octal equivalent of hexadecimal code, F3A1 is
A 173101
B 176541
C 171641
D 158661

Answer: Option [C]

1111 0011 1010 0001 i.e. F3A1

001 111 001 110 100 001 i.e. 171641

2 An 8-bit binary word b7b6b5b4b3b2b1b0 as an integer x ranges from
A -128 to 128
B -128 to 127
C -256 to 256
D None of the above

Answer: Option [B]
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3 The binary equivalent of the decimal number 0.4375 is
A 0.0111
B 0.1011
C 0.1100
D 0.1010

Answer: Option [A]
4 Decimal equivalent of the binary number 101001.1011 is
A 41.0875
B 40.6875
C 41.6875
D 40.0875

Answer: Option [C]

1 x 25 + 0 x 24 + 1 x 23 + 0 x 22 + 0 x 21 + 1 x 20.1 x 2-1 + 0 x 2-2 + 1 x 2-3 + 1 x 2-4 = 41.6875

5 Octal number system is
A A positional system with weights 0 to 9
B A positional system with weights 0 to 8
C A positional system with weights 0 to 7
D A non positional system with weights 0 to 7

Answer: Option [C]

A positional system with weights 0 to 7

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