Logic Gate Knowledge Check

Front

What is the output of an AND gate if both inputs are 1?

Back

1

Answer explanation

An AND gate outputs 1 (true) only when both inputs are 1. Since both inputs are 1 in this case, the output is 1, making it the correct choice.

Front

How does an OR gate behave when at least one input is 1?

Back

The output is 1.

Answer explanation

An OR gate outputs 1 if at least one of its inputs is 1. Therefore, when at least one input is 1, the output is 1, making 'The output is 1.' the correct choice.

Front

If Nick and Frank choose the same number (0 or 1), what will the result of their game be according to the XOR rule?

Back

0

Answer explanation

An XOR gate outputs 1 only when the inputs are different. When both inputs are the same (either 0 or 1), the output is 0. Therefore, the correct answer is 0.

Front

What is the output of a NOR gate when both inputs are 1?

Back

0

Answer explanation

A NOR gate outputs 0 when at least one input is 1. Since both inputs are 1, the output is 0, making '0' the correct answer.

Front

James is working on a project where he needs to use a specific type of logic gate. He finds a symbol in his textbook and wonders which logic gate it represents.

Back

NAND

Answer explanation

The symbol for the NAND gate is an AND gate symbol with a small circle (representing NOT) at the output. It outputs false only when both inputs are true, making it the correct choice.

Front

Bob and Nick are working on a project that involves building a circuit. They come across a symbol that they need to identify. Which logic gate is represented by this symbol?

Back

NOR

Answer explanation

The symbol for the NOR gate has a specific shape with a curved end and a small circle, indicating the output is true only when both inputs are false. This distinguishes it from other gates like AND, OR, and NAND.

Front

Sheldon is working on a project where he needs to use a specific logic gate. He finds a symbol that looks like this. Which logic gate is represented by this symbol?

Back

NOT

Answer explanation

The symbol for the NOT gate is a triangle pointing to the right with a small circle at the output. It inverts the input signal, producing a true output when the input is false, making 'NOT' the correct answer.

Front

Which logic gate is represented by this truth table?

Back

Front

Which logic gate is represented by this truth table?

Back

Front

What kind of logic gate does the scenario represent: Felix and George are working on a project. If Felix completes his task, George doesn't need to do his. If Felix doesn't complete his task, George must do his?

Back

NOT

Answer explanation

The Truth Table for a NOT gate shows that it outputs the opposite value of the input. When the input is 0, the output is 1, and when the input is 1, the output is 0, confirming it represents a NOT gate.