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Digital Electronics
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Number Systems and Codes
Comments
Question
Convert the following binary number to decimal.
10011010
2
Options
A. 154
B. 155
C. 153
D. 157
Correct Answer
154
Number Systems and Codes problems
Search Results
1. The base of the hexadecimal system is:
Options
A. eight.
B. sixteen.
C. ten.
D. two.
Show Answer
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Discuss
Correct Answer: sixteen.
2. Convert the Gray code 1011 to binary.
Options
A. 1011
B. 1010
C. 0100
D. 1101
Show Answer
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Discuss
Correct Answer: 1101
3. Convert the following octal number to binary.
76
8
Options
A. 110111
2
B. 111110
2
C. 111100
2
D. 100111
2
Show Answer
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Correct Answer: 111110
2
4. What decimal number does 2
5
represent?
Options
A. 10
B. 31
C. 25
D. 32
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Correct Answer: 32
5. Convert 457
10
to hexadecimal.
Options
A. 711
B. 2C7
C. 811
D. 1C9
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Correct Answer: 1C9
6. The difference of 111 ? 001 equals ________.
Options
A. 100
B. 111
C. 001
D. 110
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Correct Answer: 110
7. What is the result when a decimal 5238 is converted to base 16?
Options
A. 327.375
B. 12.166
C. 1388
D. 1476
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Correct Answer: 1476
8. Convert the decimal number 151.75 to binary.
Options
A. 10000111.11
B. 11010011.01
C. 00111100.00
D. 10010111.11
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Correct Answer: 10010111.11
9. When using the repeated division by 2 method of converting from decimal to binary, one must write the first remainder as the:
Options
A. MSB
B. MSB, provided the following sequence of remainders are written in descending order until the final remainder is achieved.
C. LSB
D. LSB, provided the final remainder is used to replace the original LSB, which is then moved to the MSB position.
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Correct Answer: MSB
10. Which of the following is an invalid BCD code?
Options
A. 0011
B. 1101
C. 0101
D. 1001
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Correct Answer: 1101
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