8525 AQA GCSE 3.4 Applying logical operators in truth tables (CD

What are the conditions for the fire alarm to go off?

• Temperature above 60 degrees Celsius

• Someone smashing the fire alarm glass panel

• Both A and B

• None of the above

Answer explanation

The question asks about the conditions under which a fire alarm would go off. The correct answer is 'Both A and B', indicating that both conditions - 'Temperature above 60 degrees Celsius' and 'Someone smashing the fire alarm glass panel' - need to be met for the fire alarm to be triggered.

What is the purpose of the fire officer in the scenario?

• To manually shut off the fire alarm

• To activate the manual override

• To monitor the temperature inside the building

• To repair the fire alarm system

Which logic gate is used to check if either condition A or condition B is true?

• AND gate

• OR gate

• NOT gate

• XOR gate

What is the output of the NOT gate when the input is 0?

• 0

• 1

• A

• B

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

• 0

• 1

• A

• B

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

• 0

• 1

• A

• B

What is the output of the AND gate when one input is 0 and the other is 1?

• 0

• 1

• A

• B

What is the output of the AND gate when both inputs are 0?

• 0

• 1

• A

• B

What is the output of the AND gate when one input is 1 and the other is 0?

• 0

• 1

• A

• B

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

• 0

• 1

• A

• B