Multiple Choice Exam -- Number Bases and Codes
Subject -- Number Bases and Codes
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1
Convert the binary number 11011.1 to a hexadecimal number.
63.5
21.4
19.8
1B.8
2
The BCD number 10010011.0101 is what number in base 8?
242.2
142.2
135.4
134.5
3
Add the unsigned binary numbers 1011.11 and 10110.1
110010.01
101010.01
110011.10
111010.01
4
The Base X number 45.1 is 29.1666 in base 10.
8
7
6
none of the above.
5
Convert the decimal number 30.125 to base 8
36.101625
35.101562
35.101625
none of the above.
6
Subtract the unsigned binary numbers 10111 from 1001101
110110
-110110
-110101
none of the above.
7
What is a code with the characteristic that code words for two consecutive numbers differ in only one bit?
Hamming.
Gray.
cyclic.
Minimum distance.
8
What is the ASCII binary code for D?
1000101
1001100
1000100
1010101
9
What is the remainder when the binary number 1110111 is divided by 1001?
001
01
10
11
10
Determine the two's complement of the binary number 11010100
00101011
01101101
00101010
00101100