As the engineer, it is necessary to tune a...

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Question 1 of 205eccefa5bacbc34ba4d4884c

As the engineer, it is necessary to tune a proportional-integral-derivative (PID) control loop. If the PID incorporates all three functions, which function(s) is/are dominant in the controller's performance?

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🔍 Key Concepts

• Proportional action as the basic control response to present error • Integral action and its role in removing steady‑state (long-term) error • Derivative action and its role in anticipating rapid changes and damping overshoot

💭 Think About

• In a real shipboard control system, which term usually provides the main correcting force when the process variable deviates from the setpoint? • If you had to temporarily turn off one term (P, I, or D) and still keep the loop basically working, which one could you most likely lose without losing all control? • Which terms are more like fine‑tuning adjustments (stability, offset removal) rather than the primary source of control effort?

✅ Before You Answer

• Be clear on which term responds directly and immediately to the present error size. • Think about which terms are mainly for steady‑state accuracy and damping/overshoot control, not for the basic control action. • Eliminate any choice that assumes all three terms contribute equally in normal tuning, because typical PID tuning does not treat them as equal.

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