Which statement best describes an open-loop system?

An open-loop system is characterized by its operation without any input adjustments. This means that once the input is provided, the system executes its predetermined processes without taking any feedback or adjustments from its outputs into account. In other words, an open-loop system does not monitor or react to the results of its actions.

For instance, consider a washing machine that runs through a set cycle based solely on the input provided (such as selecting a “normal wash” cycle) but does not adjust its operations based on whether the clothes are clean or not after the wash is complete. This is a clear representation of an open-loop system.

The other statements pertain to different types of systems: a system that adjusts automatically based on feedback or one that maintains a constant output would be examples of closed-loop systems, while a system that requires manual intervention indicates that it does not function independently like an open-loop system.