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Flip-flops: SR, JK, D, T, and applications MCQs

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1. In an SR flip-flop, what happens when both Set (S) and Reset (R) inputs are high?





2. Primary limitation of the SR flip-flop:





3. JK flip-flop is an improvement over SR flip-flop because:





4. When both J and K inputs of a JK flip-flop are high (1):





5. Primary use of a JK flip-flop:





6. In a D flip-flop, the output Q when the clock signal is applied:





7. D flip-flop is commonly used for:





8. T flip-flop is mainly used for:





9. What does the “T” in T flip-flop stand for?





10. In a T flip-flop, when the T input is high (1), what happens to output Q?





11. Which flip-flop is commonly used in binary counters?





12. In a 4-bit binary counter, how many flip-flops are required?





13. Flip-flop typically used for data synchronization:





14. A frequency divider circuit can be implemented using:





15. The “master-slave” configuration is used in which flip-flop to eliminate race conditions?





16. A register that stores multiple bits of data is typically composed of:





17. In a digital circuit, a flip-flop is used to store:





18. In a JK flip-flop, when clock is applied and J = 1, K = 0:





19. In a D flip-flop, when clock is applied and D = 0:





20. Which of the following is NOT a common application of flip-flops?





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