New Zealand Scholarship Technology Practice Questions - New Zealand Scholarship Technology Assessment (NZQA Standard 93601) Exam

Which fundamental component distinguishes a closed-loop control system from an open-loop control system?

A feedback mechanism that measures system output and adjusts input accordingly A high-voltage AC power source connected directly to an electric motor A manual emergency stop button operated by a human technician A step-down transformer that converts 230V mains power to 12V direct current

Correct Answer:

A feedback mechanism that measures system output and adjusts input accordingly

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