MCQOPTIONS
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MCQOPTIONS
This section includes 20 Mcqs, each offering curated multiple-choice questions to sharpen your Digital Circuits knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Convert binary number into gray code: 100101. |
| A. | 101101 |
| B. | 001110 |
| C. | 110111 |
| D. | 111001 |
| Answer» D. 111001 | |
| 2. |
The binary representation of BCD number 00101001 (decimal 29) is ___________ |
| A. | 0011101 |
| B. | 0110101 |
| C. | 1101001 |
| D. | 0101011 |
| Answer» B. 0110101 | |
| 3. |
Earlier, reflected binary codes were applied to ___________ |
| A. | Binary addition |
| B. | 2’s complement |
| C. | Mathematical puzzles |
| D. | Binary multiplication |
| Answer» D. Binary multiplication | |
| 4. |
Reflected binary code is also known as ___________ |
| A. | BCD code |
| B. | Binary code |
| C. | ASCII code |
| D. | Gray Code |
| Answer» E. | |
| 5. |
Why is the Gray code more practical to use when coding the position of a rotating shaft? |
| A. | All digits change between counts |
| B. | Two digits change between counts |
| C. | Only one digit changes between counts |
| D. | Alternate digit changes between counts |
| Answer» D. Alternate digit changes between counts | |
| 6. |
One way to convert BCD to binary using the hardware approach is ___________ |
| A. | With MSI IC circuits |
| B. | With a keyboard encoder |
| C. | With an ALU |
| D. | UART |
| Answer» B. With a keyboard encoder | |
| 7. |
Code is a symbolic representation of ___________ |
| A. | Discrete information |
| B. | Continuous information |
| C. | Decimal information into binary |
| D. | Binary information into decimal |
| Answer» B. Continuous information | |
| 8. |
The primary use for Gray code is ___________ |
| A. | Coded representation of a shaft’s mechanical position |
| B. | Turning on/off software switches |
| C. | To represent the correct ASCII code to indicate the angular position of a shaft on rotating machinery |
| D. | To convert the angular position of a shaft on rotating machinery into hexadecimal code |
| Answer» B. Turning on/off software switches | |
| 9. |
Use the weighting factors to convert the following BCD numbers to binary ___________ |
| A. | 01010011 001001101000 |
| B. | 11010100 100001100000 |
| C. | 110101 100001100 |
| D. | 101011 001100001View Answer |
| Answer» D. 101011 001100001View Answer | |
| 10. |
A code converter is a logic circuit that _____________ |
| A. | Inverts the given input |
| B. | Converts into decimal number |
| C. | Converts data of one type into another type |
| D. | Converts to octal |
| Answer» D. Converts to octal | |
| 11. |
EARLIER,_REFLECTED_BINARY_CODES_WERE_APPLIED_TO?$ |
| A. | Binary addition |
| B. | 2’s complement |
| C. | Mathematical puzzles |
| D. | binary multiplication |
| Answer» D. binary multiplication | |
| 12. |
Convert binary number into gray code: 100101$ |
| A. | 101101 |
| B. | 001110 |
| C. | 110111 |
| D. | 111001 |
| Answer» D. 111001 | |
| 13. |
The_binary_representation_of_BCD_number_00101001_(decimal_29)_is$ |
| A. | 0011101 |
| B. | 0110101 |
| C. | 1101001 |
| D. | 0101011 |
| Answer» B. 0110101 | |
| 14. |
Why do we use gray codes? |
| A. | To count the no of bits changes |
| B. | To rotate a shaft |
| C. | Error correction |
| D. | None of the Mentioned |
| Answer» D. None of the Mentioned | |
| 15. |
Reflected binary code is also known as |
| A. | BCD code |
| B. | Binary code |
| C. | ASCII code |
| D. | Gray Code |
| Answer» E. | |
| 16. |
One way to convert BCD to binary using the hardware approach is |
| A. | With MSI IC circuits |
| B. | With a keyboard encoder |
| C. | With an ALU |
| D. | UART |
| Answer» B. With a keyboard encoder | |
| 17. |
Code is a symbolic representation of |
| A. | Continuous information |
| B. | Discrete information |
| C. | Decimal information into binary |
| D. | Binary information into decimal |
| Answer» B. Discrete information | |
| 18. |
The primary use for Gray code is |
| A. | Coded representation of a shaft’s mechanical position |
| B. | Turning on/off software switches |
| C. | To represent the correct ASCII code to indicate the angular position of a shaft on rotating machinery |
| D. | To convert the angular position of a shaft on rotating machinery into hexadecimal code |
| Answer» B. Turning on/off software switches | |
| 19. |
Use the weighting factors to convert the following BCD numbers to binary: |
| A. | |
| B. | 01010011 001001101000 |
| C. | 11010100 100001100000 |
| Answer» D. | |
| 20. |
A code converter is a logic circuit that |
| A. | Inverts the given input |
| B. | Converts into decimal number |
| C. | Converts data of one type into another type |
| D. | None of the Mentioned |
| Answer» D. None of the Mentioned | |