🧠 Digital Electronics Quiz - Step by Step
1. Which logic gate has an output that is 1 only when all inputs are 1?
2. What is the output of a JK flip-flop when both J and K are 1 on the clock edge?
3. Which flip-flop is called a “data” flip-flop?
4. What is the function of a multiplexer?
5. What is the minimum number of gates required to implement a NOT operation?
7. What is the output of an XOR gate if both inputs are 0?
8. A 4-to-1 multiplexer has how many select lines?
9. Which flip-flop is level-triggered?
10. The output of a NAND gate is 0 when:
11. The function of a decoder is to:
12. A T flip-flop toggles its output on:
13. A 2-input AND gate has a truth table output of 1 when:
14. Which flip-flop can be used to design a counter?
15. What is the output of a NOR gate when all inputs are 0?
16. A half-adder has:
17. A full-adder can be implemented using:
18. How many flip-flops are required to design a 4-bit binary counter?
19. Which logic gate is used in XOR implementation?
20. What is the propagation delay of a logic gate?
21. Which flip-flop is used in shift registers?
22. A 3-to-8 decoder has how many outputs?
23. The number of flip-flops needed to design an n-bit counter is:
24. Which logic gate outputs 1 only when all inputs are 0?
25. A synchronous counter is triggered by:
26. Which gate is used to detect equality of two binary inputs?
27. Which component is used to store a single bit of data?
28. How many outputs does a 2-to-4 decoder have?
29. Which flip-flop is most commonly used in registers?
30. Which combinational circuit performs arithmetic operations?