Logic Gates Quiz for GCSE Home Learning

What does a NOT gate do to its input?

• It adds 1 to the input.

• It subtracts 1 from the input.

• It outputs the same as the input.

• It reverses the input.

Which gate requires both inputs to be 1 for the output to be 1?

• NOT gate

• XOR gate

• OR gate

• AND gate

What is the output of an OR gate if both inputs are 0?

• 2

• Undefined

• 1

• 0

How many inputs does an AND gate have?

• One

• Two

• Four

• Three

What is the output of a NOT gate if the input is 1?

• 0

• 1

• 2

• Undefined

Which gate outputs 1 if at least one input is 1?

• OR gate

• AND gate

• NAND gate

• NOT gate

What is the function of a NAND gate?

• It outputs 1 only if both inputs are 0.

• It outputs 0 only if both inputs are 1.

• It outputs 1 only if both inputs are 1.

• It outputs 0 only if both inputs are 0.

What does an XOR gate output if both inputs are 1?

• 0

• 1

• 2

• Undefined

Which gate is described as NOT OR?

• NAND gate

• NOR gate

• AND gate

• XOR gate

What is the output of an OR gate if one input is 1 and the other is 0?

• 2

• 0

• Undefined

• 1