Logic Gates Quiz

Which logic gates are no longer part of the syllabus but might still appear in objective questions?

• AND and OR

• XOR and XNOR

• NAND and NOR

• NOT and OR

What is the Boolean expression for an AND gate with inputs A and B?

• A + B

• A * B

• A / B

• A - B

In an AND gate, what is the output when both inputs are 1?

• Undefined

• 2

• 1

• 0

What shape is used to represent the OR gate symbol?

• Circle

• Rocket-like

• Rectangle

• Triangle

For an OR gate, what is the output when both inputs are 0?

• 0

• Undefined

• 1

• 2

What is the Boolean expression for a NOT gate with input A?

• A'

• A + B

• A * B

• A - B

How many inputs does a NOT gate have?

• Four

• One

• Three

• Two

What is the output of a NAND gate when both inputs are 1?

• 2

• Undefined

• 1

• 0

Which gate is represented by an OR gate symbol with a small circle at the output?

• NAND

• NOR

• AND

• NOT

What is the Boolean expression for a NOR gate with inputs A and B?

• (A + B)'

• A * B

• A + B

• (A * B)'