1. : What is the primary function of a flip-flop in digital circuits?
(A) To store a single bit of data temporarily
(B) To perform arithmetic operations
(C) To generate clock signals
(D) To convert analog signals to digital
2. : Which of the following is a characteristic feature of a flip-flop?
(A) It has one input and one output.
(B) It has two inputs and one output.
(C) It has one input and two outputs.
(D) It has two inputs and two outputs.
3. : What are the two inputs of an SR flip-flop?
(A) Data and Clock
(B) Set and Reset
(C) Clock and Enable
(D) Data and Enable
4. : What is the output of an SR flip-flop if both Set (S) and Reset (R) inputs are LOW (0)?
(A) Output HIGH (1)
(B) Output LOW (0)
(C) Output depends on gate configuration
(D) Output cannot be determined
5. : What is the output of an SR flip-flop if Set (S) input is HIGH (1) and Reset (R) input is LOW (0)?
(A) Output HIGH (1)
(B) Output LOW (0)
(C) Output depends on gate configuration
(D) Output cannot be determined
6. : Which gate configuration is used to implement an SR flip-flop?
(A) Two cross-coupled NAND gates
(B) Two cross-coupled NOR gates
(C) One AND gate and one OR gate
(D) One XOR gate and one NOT gate
7. : What is the primary purpose of a D flip-flop in digital circuits?
(A) To store a single bit of data temporarily
(B) To perform arithmetic operations
(C) To generate clock signals
(D) To convert analog signals to digital
8. : What are the two inputs of a D flip-flop?
(A) Data and Enable
(B) Set and Reset
(C) Clock and Data
(D) Data and Clock
9. : What is the output of a D flip-flop if the Data input is LOW (0) and the Clock input transitions from LOW to HIGH?
(A) Output HIGH (1)
(B) Output LOW (0)
(C) Output depends on gate configuration
(D) Output cannot be determined
10. : Which gate configuration is used to implement a D flip-flop?
(A) Two cross-coupled NAND gates
(B) Two cross-coupled NOR gates
(C) One AND gate and one OR gate
(D) One XOR gate and one NOT gate
11. : What is the primary purpose of a JK flip-flop in digital circuits?
(A) To store a single bit of data temporarily
(B) To perform arithmetic operations
(C) To generate clock signals
(D) To convert analog signals to digital
12. : What are the three inputs of a JK flip-flop?
(A) J, K, and Enable
(B) Set, Reset, and Clock
(C) J, K, and Clock
(D) Data, Clock, and Enable
13. : What is the output of a JK flip-flop if both J and K inputs are LOW (0) and the Clock input transitions from LOW to HIGH?
(A) Output HIGH (1)
(B) Output LOW (0)
(C) Output depends on gate configuration
(D) Output cannot be determined
14. : Which gate configuration is used to implement a JK flip-flop?
(A) Two cross-coupled NAND gates
(B) Two cross-coupled NOR gates
(C) One AND gate and one OR gate
(D) One XOR gate and one NOT gate
15. : What is the primary purpose of a T flip-flop in digital circuits?
(A) To store a single bit of data temporarily
(B) To perform arithmetic operations
(C) To generate clock signals
(D) To convert analog signals to digital
16. : What are the two inputs of a T flip-flop?
(A) T and Enable
(B) Set and Reset
(C) Clock and T
(D) Data and Clock
17. : What is the output of a T flip-flop if the T input is LOW (0) and the Clock input transitions from LOW to HIGH?
(A) Output HIGH (1)
(B) Output LOW (0)
(C) Output depends on gate configuration
(D) Output cannot be determined
18. : Which gate configuration is used to implement a T flip-flop?
(A) Two cross-coupled NAND gates
(B) Two cross-coupled NOR gates
(C) One AND gate and one OR gate
(D) One XOR gate and one NOT gate
19. : What is the primary difference between an SR flip-flop and a D flip-flop?
(A) Number of inputs
(B) Number of outputs
(C) Operation during clock transitions
(D) Implementation using gates
20. : What is the primary difference between a JK flip-flop and a T flip-flop?
(A) Number of inputs
(B) Number of outputs
(C) Operation during clock transitions
(D) Implementation using gates
