Digital Electronics Unit 3 – Sequential Logic and Its Applications: important questions for AKTU
Unit 3 (Sequential Logic and Its Applications) questions that AKTU repeats most often. This unit carries about 32 marks per paper. Start with the repeated questions, then the most asked topics.
Most repeated Unit 3 questions
- Design a synchronous binary MOD-6 counter. (7 marks, 2025, Synchronous Counters) – also asked in 2022, 2023, 2024, 2026
- For clocked JK flip-flop write the state table, draw the state diagram and state equation. (7 marks, 2024, Latches and Flip Flops) – also asked in 2022, 2023, 2025, 2026
- Explain modes of operation of shift register. And state various applications of shift registers. (7 marks, 2024, Shift Registers) – also asked in 2022, 2023, 2025, 2026
Most important Unit 3 topic
- Latches and Flip Flops (Unit 3: Sequential Logic and Its Applications) – asked 32 times in 2022, 2023, 2024, 2025, 2026
Most asked Unit 3 topics
- Latches and Flip Flops – asked 32 times
- Shift Registers – asked 9 times
- Synchronous Counters – asked 8 times
More Unit 3 previous year questions
- What is a shift register? Name any two types. (2 marks, 2026, Shift Registers)
- Describe the construction and working of a Johnson counter. (7 marks, 2026, Johnson and Ring Counter)
- Explain the working of a D flip-flop using logic diagram, truth table and characteristic equation. (7 marks, 2026, Latches and Flip Flops)
- Explain Ring Counter with diagram and applications. (7 marks, 2026, Johnson and Ring Counter)
- Elucidate the race around condition in sequential circuit. (2 marks, 2025, Latches and Flip Flops)
Unit 3 syllabus topics
- Latches and Flip Flops
- Shift Registers
- Ripple Counters
- Synchronous Counters
- Asynchronous Counters
- Johnson and Ring Counter