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

One advantage of a closed loop feedback system is:

The main idea is that closed-loop systems use feedback to keep the output aligned with the desired value by correcting for changes as they happen. When a disturbance affects the process, a sensor measures the actual output, compares it to what should be happening, and the controller adjusts the input to reduce the error. This reactive capability lets the system compensate for external disturbances like load changes, friction, or supply variations, keeping performance steady even as conditions change. Think of a thermostat or a car’s cruise control: if the room temperature or speed drifts, the system detects the difference and makes an adjustment to bring things back to the setpoint. That’s why this choice is the best. The other options describe aspects that aren’t advantages of closed-loop design: a simple design is more characteristic of open-loop, not closed-loop; instability is not an intended advantage and, with proper tuning, a closed-loop system aims to be more stable than an open-loop one; and while calibration matters in any system, the defining benefit of closed-loop is its ability to reject disturbances through feedback.

The main idea is that closed-loop systems use feedback to keep the output aligned with the desired value by correcting for changes as they happen. When a disturbance affects the process, a sensor measures the actual output, compares it to what should be happening, and the controller adjusts the input to reduce the error. This reactive capability lets the system compensate for external disturbances like load changes, friction, or supply variations, keeping performance steady even as conditions change. Think of a thermostat or a car’s cruise control: if the room temperature or speed drifts, the system detects the difference and makes an adjustment to bring things back to the setpoint.

That’s why this choice is the best. The other options describe aspects that aren’t advantages of closed-loop design: a simple design is more characteristic of open-loop, not closed-loop; instability is not an intended advantage and, with proper tuning, a closed-loop system aims to be more stable than an open-loop one; and while calibration matters in any system, the defining benefit of closed-loop is its ability to reject disturbances through feedback.