Open loop uses programmed data.

Open loop uses programmed data.

• A. Open loop
• B. Closed loop
• C. Both
• D. None

Answer: (A)

Open-loop control operates by following a pre-set program or data to determine the output, without measuring or correcting based on the actual result. That’s why it’s described as using programmed data—the control action is driven entirely by the programmed instructions rather than by feedback from the process. In contrast, a closed-loop system continuously measures the output and compares it to the desired value, using that feedback to adjust the input and reduce error. So the statement aligns with open-loop behavior, where there's no feedback to correct for disturbances. Examples include a timer controlling a heater for a fixed duration or a sprinkler system that runs for a set period regardless of the actual conditions.

Open-loop control operates by following a pre-set program or data to determine the output, without measuring or correcting based on the actual result. That’s why it’s described as using programmed data—the control action is driven entirely by the programmed instructions rather than by feedback from the process. In contrast, a closed-loop system continuously measures the output and compares it to the desired value, using that feedback to adjust the input and reduce error. So the statement aligns with open-loop behavior, where there's no feedback to correct for disturbances. Examples include a timer controlling a heater for a fixed duration or a sprinkler system that runs for a set period regardless of the actual conditions.