Digital Electronics - Code Converters and Multiplexers
Exercise :: Code Converters and Multiplexers - General Questions
| 31. |
A binary code that progresses such that only one bit changes between two successive codes is: |
| A. |
nine's-complement code | | B. |
8421 code | | C. |
excess-3 code | | D. |
Gray code |
Answer: Option D
Explanation:
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| 32. |
Which of the following is not a weighted value positional numbering system: |
| A. |
hexadecimal | | B. |
binary-coded decimal | | C. |
binary | | D. |
octal |
Answer: Option B
Explanation:
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| 33. |
How many inputs are required for a 1-of-16 decoder? |
Answer: Option B
Explanation:
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| 34. |
A truth table with output columns numbered 0–15 may be for which type of decoder IC? |
| A. |
hexadecimal 1-of-16 | | B. |
dual octal outputs | | C. |
binary-to-hexadecimal | | D. |
hexadecimal-to-binary |
Answer: Option A
Explanation:
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| 35. |
In a BCD-to-seven-segment converter, why must a code converter be utilized? |
| A. |
to convert the 4-bit BCD into 7-bit code | | B. |
to convert the 4-bit BCD into 10-bit code | | C. |
to convert the 4-bit BCD into Gray code | | D. |
No conversion is necessary. |
Answer: Option A
Explanation:
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