Logic gates

Question 1

What is a Boolean logic gate?

Answer 1

A device that implements a Boolean function, performing logical operations on one or more binary inputs to produce a single binary output.

Question 2

True or False: A NOT gate has two inputs.

Answer 2

False

Question 3

What is the output of an AND gate if both inputs are true?

Answer 3

True

Question 4

Fill in the blank: The output of an OR gate is true if at least one of the inputs is ______.

Answer 4

true

Question 5

What is the purpose of a NAND gate?

Answer 5

It produces a false output only when all its inputs are true.

Question 6

Which gate is known as the universal gate?

Answer 6

NAND gate

Question 7

True or False: An XOR gate outputs true only when both inputs are the same.

Answer 7

False

Question 8

What is the output of a NOR gate if both inputs are false?

Answer 8

True

Question 9

What does the output of an XOR gate represent?

Answer 9

It represents true if the inputs are different.

Question 10

Multiple Choice: Which of the following is NOT a basic logic gate? A) AND B) OR C) ADD D) NOT

Answer 10

C) ADD

Question 11

What is the relationship between NAND and NOR gates?

Answer 11

Both are universal gates capable of creating any Boolean function.

Question 12

True or False: A buffer gate simply passes the input to the output without any change.

Answer 12

True

Question 13

Fill in the blank: The output of a NOT gate is the ______ of its input.

Answer 13

inverse

Question 14

What is the primary function of an AND gate?

Answer 14

To output true only when all inputs are true.

Question 15

Multiple Choice: Which gate can be used to create an AND gate using only NOR gates? A) NOT B) OR C) NAND D) NOR

Answer 15

D) NOR

Question 16

What is a truth table?

Answer 16

A table that shows all possible input values and the corresponding output values for a logic gate.

Question 17

True or False: The output of an AND gate is false if at least one input is false.

Answer 17

True

Question 18

What is the output of an XOR gate with inputs true and false?

Answer 18

True

Question 19

Fill in the blank: A logic circuit can be simplified using ______ laws.

Answer 19

Boolean

Question 20

What is the output of a NAND gate when both inputs are false?

Answer 20

True

Question 21

Multiple Choice: Which of the following gates is used for parity checking? A) AND B) OR C) XOR D) NOT

Answer 21

C) XOR

Question 22

What does a NOR gate output when both inputs are true?

Answer 22

False

Question 23

True or False: A logic gate can have more than two inputs.

Answer 23

True

Question 24

What is the primary use of NOT gates in digital circuits?

Answer 24

To invert the signal.

Question 25

Fill in the blank: The operation of an AND gate can be represented by the symbol ______.

Answer 25

⋅ (dot)

Question 26

What does the output of a buffer gate indicate?

Answer 26

It indicates the same value as the input.

Question 27

Multiple Choice: Which gate's output is true when both inputs are true? A) OR B) AND C) NAND D) NOR

Answer 27

B) AND