Open-loop control is defined as a system that does not use feedback to adjust its output.

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Multiple Choice

Open-loop control is defined as a system that does not use feedback to adjust its output.

Explanation:
Open-loop control relies on a preplanned input and does not use measurements of the output to adjust the action. Because there’s no feedback, the system can’t correct for disturbances or model mismatches, so the actual output may drift away from the desired target. For example, a simple timer-driven toaster turns on for a fixed period regardless of the bread’s actual browning, so changes in bread thickness or supply voltage aren’t compensated. This is why the statement is true: open-loop control does not use feedback to adjust its output.

Open-loop control relies on a preplanned input and does not use measurements of the output to adjust the action. Because there’s no feedback, the system can’t correct for disturbances or model mismatches, so the actual output may drift away from the desired target. For example, a simple timer-driven toaster turns on for a fixed period regardless of the bread’s actual browning, so changes in bread thickness or supply voltage aren’t compensated. This is why the statement is true: open-loop control does not use feedback to adjust its output.

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