True or False. An open-loop control system adjusts its output without feedback.

An open-loop control system is designed to operate without using feedback to determine if its output is achieving the desired effect. This means that in an open-loop system, the controller sends a command to the actuator based on predetermined settings or programming, but it does not monitor the outcome of that action. For example, a simple sprinkler system that operates on a timer is an open-loop system; it turns on and off at set intervals without checking whether the watering is effective or whether the desired soil moisture level has been achieved.

In contrast, closed-loop control systems rely on feedback to adjust their output. They continually monitor the results of their actions and make necessary adjustments in real-time. This essential characteristic differentiates a true open-loop system from closed-loop systems.

The correct answer reflects the fundamental principle that open-loop systems lack feedback mechanisms to influence their operational output.