Logic gates MCQ Quiz Leave a Comment / Electronics Multiple choice question MCQ Share this /48 0 votes, 0 avg 7 Created on October 25, 2022Digital electronics LOGIC GATES Most important and interesting Questions of digital Logic gates 1 / 48 Category: Logic gates 1. What logic function is produced by adding inverters to the inputs of an OR gate? AND NAND X-NOR NOR 2 / 48 Category: Logic gates 2. A gate is inhibited when its inhibit input is at logic 1. The gate is NONE OF THESE OR AND NAND 3 / 48 Category: Logic gates 3. A gate is disabled when its disable input is at logic 0. The gate is NOR AND NONE OF THESE OR 4 / 48 Category: Logic gates 4. A bubbled NOR gate is equivalent to a NAND gate NOR gate X-OR gate AND gate 5 / 48 Category: Logic gates 5. The logic expression AB + A^{bar}.B^{bar} can be implemented by giving the inputs A and B to a two input. NAND gate NOR gate X-NOR gate X-OR gate 6 / 48 Category: Logic gates 6. A gate is enabled when its enable input is at logic 0. The gate is NONE OF THESE NAND NOR AND 7 / 48 Category: Logic gates 7. An OR gate can be imagined as switches connected in parallel switches connected in series transistors connected in series transistors connected in parallel 8 / 48 Category: Logic gates 8. An exclusive NOR gate is logically equivalent to NOT gate followed by a NOR gate X-OR gate followed by an inverter inverter followed by an X-OR gate complement of a NOR gate The 9 / 48 Category: Logic gates 9. NOT gates are to be added to the inputs of which gate to convert it to a NAND gate? OR AND NOT X-OR 10 / 48 Category: Logic gates 10. The NOR gate can function as a NOT gate if inputs are left open one input is set to 0 all inputs are connected together one input is set to 1 11 / 48 Category: Logic gates 11. What is the minimum number of two-input NAND gates used to perform the function of 2-input OR gate? 2 3 1 4 12 / 48 Category: Logic gates 12. What is the minimum number of NOR gates required to realize an X-OR gate? 5 6 4 3 13 / 48 Category: Logic gates 13. An all or nothing gate is the other name of AND gate OR gate X-NOR gate X-OR gate 14 / 48 Category: Logic gates 14. What is the minimum number of NAND gates required to realize an X-OR gate? 5 6 3 4 15 / 48 Category: Logic gates 15. The most suitable gate for comparing two bits is OR NAND AND X-OR 16 / 48 Category: Logic gates 16. An any or all gate is the other name of X-OR gate OR gate X-NOR gate AND gate 17 / 48 Category: Logic gates 17. What logic function is produced by adding an inverter to each input and output of an OR gate? NOR X-OR AND NAND 18 / 48 Category: Logic gates 18. A bubbled NAND gate is equivalent to a X-OR gate OR gate NAND gate NOR gate 19 / 48 Category: Logic gates 19. The NAND gate can function as a NOT gate if inputs are left open one input is set to 0 all inputs are connected together one input is set to 1 20 / 48 Category: Logic gates 20. The output of a gate is LOW when at least one of its inputs is HIGH. This is true for OR NAND NOR AND 21 / 48 Category: Logic gates 21. What logic function is produced by adding an inverter to each input and output of an AND gate ? X-OR OR NAND NO 22 / 48 Category: Logic gates 22. A combinational circuit can be designed using only NOR gates OR gates OR and X-NOR gates AND gates 23 / 48 Category: Logic gates 23. What logic function is produced by adding inverters to the inputs of an AND gate? NOR X-OR OR NAND 24 / 48 Category: Logic gates 24. A bubbled NAND gate is equivalent to a X-OR gate NAND gate OR gate NOR gate 25 / 48 Category: Logic gates 25. NOT gates are to be added to the inputs of which gate to convert it to a NOR gate? NAND X-NOR OR AND 26 / 48 Category: Logic gates 26. Which of the following gates cannot be used as an inverter? X-NOR NOR NAND AND 27 / 48 Category: Logic gates 27. The output of a NOR gate is high only when all the inputs are low (d) only when at least one input is low only when at least one input is high only when all the inputs are high 28 / 48 Category: Logic gates 28. How many NOR gates are.required to obtain AND operation? 1 2 4 3 29 / 48 Category: Logic gates 29. An AND gate can be imagined as switches connected in parallel transistors connected in series switches connected in series transistors connected in parallel 30 / 48 Category: Logic gates 30. The number of rows in the truth table of a 4-input gate is 4 8 12 16 31 / 48 Category: Logic gates 31. The output of a logic gate is 1 when all its inputs are at logic 0. The gate is either an X-OR or an X-NOR a NAND or a NOR an OR or a NAND an AND or an X-NOR 32 / 48 Category: Logic gates 32. The output of a logic gate is 0 when all its inputs are at logic 1. The gate is either an OR or an X-OR NAND or an AND a NAND or an X-OR a NOR or an X-NOR 33 / 48 Category: Logic gates 33. The output of a logic gate is 0 when all its inputs are at logic 0.The gate is either an AND or a NOR an OR or an X-NOR a NAND or an X-OR an OR or an X-OR 34 / 48 Category: Logic gates 34. A bubbled OR gate is equivalent to a AND gate NOR gate NAND gate X-OR gate 35 / 48 Category: Logic gates 35. The output of a gate is LOW if and only if all its inputs are HIGH. it is true for NOR NAND X-NOR AND 36 / 48 Category: Logic gates 36. The output of a gate is HIGH if and only if all ts inputs are LOW. it is true for NAND X-OR X-NOR NOR 37 / 48 Category: Logic gates 37. A gate is enabled when its enable input is at logic 1. The gate is NAND NONE OF THESE NOR OR 38 / 48 Category: Logic gates 38. What is the logic which controls a stair case light associated with two switches A and B locatedat the bottom and top of the stair case respectively? X-NOR X-OR OR AND 39 / 48 Category: Logic gates 39. Which of the following statements is true? AND and NOT gates are necessary and sufficient for realization of any logic function OR and NOT gates are necessary and sufficient for realization of any logic function. NAND gates are not sufficient to realize any logic function NOR gates are sufficient to realize any logic function. 40 / 48 Category: Logic gates 40. The output of a NAND gate is low only when at least one input is low only when all the inputs are high only when all the inputs are low only when at least one input is high 41 / 48 Category: Logic gates 41. Which of the following gate is known as a coincidence detector? NAND gate X-NOR gate X-OR gate AND gate 42 / 48 Category: Logic gates 42. An X-OR gate gives a high output if it has even number of 0s if there are odd number of 1s for odd decimal value if the decimal value of digital word is even 43 / 48 Category: Logic gates 43. Which of the following is known as a mod-2 adder? NOR gate X-NOR gate NAND gate X-OR gate 44 / 48 Category: Logic gates 44. Which of the following gates is known as anticoincidence detector? AND gate X-OR gate OR gate X-NOR gate 45 / 48 Category: Logic gates 45. The output of a logic gate is 1 when all its inputs are at logic 1. The gate is either an AND or an OR a NAND or a NOR an AND or a NOR an OR or an X-OR 46 / 48 Category: Uncategorized 46. A combinational circuit can be designed using only OR and X-NOR gates NAND gates OR gates AND gates 47 / 48 Category: Logic gates 47. The output of a gate is HIGH when at least one of its inputs is LOW. It is true for NOR AND OR NAND 48 / 48 Category: Logic gates 48. X-OR and X-NOR gates can have how many inputs? 2 1 4 any number Your score is The average score is 1% LinkedIn Facebook Twitter 0% Restart quiz Exit Send feedback Share this