🔍 Key Concepts

• Throttle control systems in remote propulsion control • Difference between a function generator, amplifier, and feedback/summing stages in an electronic control loop • How RPM feedback and command signals are compared and converted in a closed-loop system

💭 Think About

• Which part of a control circuit typically converts a low-level command signal into the exact signal needed to drive an output to a specific value? • In a closed-loop speed control system, where does the comparison between "what I want" (command RPM) and "what I have" (actual RPM) usually happen? • Think about which choice sounds like a block that shapes the overall response vs. a block that actually performs the core command-to-output conversion.

✅ Before You Answer

• Identify which option refers to a circuit block that performs signal conversion and control, not just timing or direction selection • Ask yourself which circuit typically works with summing and feedback to control an output like shaft RPM • Eliminate any option that mainly suggests time delay or simple direction selection rather than precise RPM control