Q1: 1. Which logic gate is used to implement the Boolean expression A + B?

• A) AND
• B) OR
• C) NOT
• D) XOR

Q2: 2. What is the output of the XOR gate when both inputs are high?

• A) High
• B) Low
• C) Undefined
• D) None of the above

Q3: 3. How many input combinations are possible for a 2-input logic gate?

• A) 2
• B) 4
• C) 8
• D) 16

Q4: 4. Which gate is known as the universal gate in digital logic design?

• A) AND
• B) OR
• C) NAND
• D) NOR

Q5: 5. What is the output of an AND gate if one of the inputs is low?

• A) High
• B) Low
• C) Undefined
• D) None of the above

Q6: 6. Which gate is used to perform the logical operation A'B?

• A) AND
• B) OR
• C) NOT
• D) XOR

Q7: 7. How many output combinations are possible for a 3-input logic gate?

• A) 2
• B) 4
• C) 8
• D) 16

Q8: 8. Which gate is used to implement the Boolean expression A XOR B?

• A) AND
• B) OR
• C) NOT
• D) XOR

Q9: 9. What is the output of a NOR gate if both inputs are high?

• A) High
• B) Low
• C) Undefined
• D) None of the above

Q10: 10. Which gate is used to perform the logical operation A + B'?

• A) AND
• B) OR
• C) NOT
• D) XOR

Q11: 11. How many input combinations are possible for a 3-input logic gate?

• A) 2
• B) 4
• C) 8
• D) 16

Q12: 12. Which gate is used to implement the Boolean expression A AND B?

• A) AND
• B) OR
• C) NOT
• D) XOR

Q13: 13. What is the output of a NAND gate if both inputs are low?

• A) High
• B) Low
• C) Undefined
• D) None of the above

Q14: 14. Which gate is used to perform the logical operation A NOR B?

• A) AND
• B) OR
• C) NOT
• D) XOR

Q15: 15. How many output combinations are possible for a 4-input logic gate?

• A) 2
• B) 4
• C) 8
• D) 16

Q16: 16. Which gate is used to implement the Boolean expression A NAND B?

• A) AND
• B) OR
• C) NOT
• D) XOR

Q17: 17. What is the output of an OR gate if both inputs are low?

• A) High
• B) Low
• C) Undefined
• D) None of the above

Q18: 18. Which gate is used to perform the logical operation A XOR B'?

• A) AND
• B) OR
• C) NOT
• D) XOR

Q19: 19. How many input combinations are possible for a 4-input logic gate?

• A) 2
• B) 4
• C) 8
• D) 16

Q20: 20. Which gate is used to implement the Boolean expression A OR B'?

• A) AND
• B) OR
• C) NOT
• D) XOR

Q21: 21. What is the output of a NOT gate when the input is low?

• A) High
• B) Low
• C) Undefined
• D) None of the above

Q22: 22. How many output combinations are possible for a 5-input logic gate?

• A) 2
• B) 4
• C) 8
• D) 32

Q23: 23. Which gate is used to implement the Boolean expression A NOR B?

• A) AND
• B) OR
• C) NOT
• D) XOR

Q24: 24. What is the output of a XOR gate if both inputs are high?

• A) High
• B) Low
• C) Undefined
• D) None of the above

Q25: 25. Which gate is used to perform the logical operation A NAND B'?

• A) AND
• B) OR
• C) NOT
• D) XOR