Study for the Internet of Things (IOT102) Test. Access comprehensive flashcards and multiple choice questions, each with hints and explanations. Get prepared for your exam!

Multiple Choice

Which of the following is an example of a closed loop system?

Feedback control is what makes a closed-loop system work: the system measures its output and uses that information to adjust its input to reach a desired value. An air-conditioning unit exemplifies this. A thermostat measures the room temperature and sends that data to the controller. If the room is warmer than the setpoint, the controller activates and modulates cooling until the temperature matches the target. The actual temperature guides the actions, so the system continuously corrects itself. The other devices here don’t use that kind of feedback. They run a fixed sequence or rely on a timer and a simple on/off switch without measuring the result and adjusting based on it, so there’s no ongoing correction to achieve a target condition.

Feedback control is what makes a closed-loop system work: the system measures its output and uses that information to adjust its input to reach a desired value. An air-conditioning unit exemplifies this. A thermostat measures the room temperature and sends that data to the controller. If the room is warmer than the setpoint, the controller activates and modulates cooling until the temperature matches the target. The actual temperature guides the actions, so the system continuously corrects itself.

The other devices here don’t use that kind of feedback. They run a fixed sequence or rely on a timer and a simple on/off switch without measuring the result and adjusting based on it, so there’s no ongoing correction to achieve a target condition.