MCQOPTIONS
Saved Bookmarks
This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Boolean Algebra and Logic Simplification knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In a parallel in/parallel out shift register, D 0 = 1, D 1 = 1, D 2 = 1, and D 3 = 0. After three clock pulses, the data outputs are ________. |
| A. | 1110 |
| B. | 0001 |
| C. | 1100 |
| D. | 1000 |
| Answer» C. 1100 | |
| 2. |
A bidirectional 4-bit shift register is storing the nibble 1110. Its input is LOW. The nibble 0111 is waiting to be entered on the serial data-input line. After two clock pulses, the shift register is storing ________. |
| A. | 1110 |
| B. | 0111 |
| C. | 1000 |
| D. | 1001 |
| Answer» E. | |
| 3. |
An 8-bit serial in/serial out shift register is used with a clock frequency of 150 kHz. What is the time delay between the serial input and the Q 3 output? |
| A. | 1.67 s |
| B. | 26.67 s |
| C. | 26.7 ms |
| D. | 267 ms |
| Answer» C. 26.7 ms | |
| 4. |
An 8-bit serial in/serial out shift register is used with a clock frequency of 2 MHz to achieve a time delay (t d ) of ________. |
| A. | 16 s |
| B. | 8 s |
| C. | 4 s |
| D. | 2 s |
| Answer» D. 2 s | |
| 5. |
A bidirectional 4-bit shift register is storing the nibble 1101. Its input is HIGH. The nibble 1011 is waiting to be entered on the serial data-input line. After three clock pulses, the shift register is storing ________. |
| A. | 1101 |
| B. | 0111 |
| C. | 0001 |
| D. | 1110 |
| Answer» C. 0001 | |
| 6. |
On the third clock pulse, a 4-bit Johnson sequence is Q 0 = 1, Q 1 = 1, Q 2 = 1, and Q 3 = 0. On the fourth clock pulse, the sequence is ________. |
| A. | Q 0 = 1, Q 1 = 1, Q 2 = 1, Q 3 = 1 |
| B. | Q 0 = 1, Q 1 = 1, Q 2 = 0, Q 3 = 0 |
| C. | Q 0 = 1, Q 1 = 0, Q 2 = 0, Q 3 = 0 |
| D. | Q 0 = 0, Q 1 = 0, Q 2 = 0, Q 3 = 0 |
| Answer» B. Q 0 = 1, Q 1 = 1, Q 2 = 0, Q 3 = 0 | |
| 7. |
On the fifth clock pulse, a 4-bit Johnson sequence is Q 0 = 0, Q 1 = 1, Q 2 = 1, and Q 3 = 1. On the sixth clock pulse, the sequence is ________. |
| A. | Q 0 = 1, Q 1 = 0, Q 2 = 0, Q 3 = 0 |
| B. | Q 0 = 1, Q 1 = 1, Q 2 = 1, Q 3 = 0 |
| C. | Q 0 = 0, Q 1 = 0, Q 2 = 1, Q 3 = 1 |
| D. | Q 0 = 0, Q 1 = 0, Q 2 = 0, Q 3 = 1 |
| Answer» D. Q 0 = 0, Q 1 = 0, Q 2 = 0, Q 3 = 1 | |