A speed sensitive control in turbine systems operates using which mechanical components?

A speed sensitive control in turbine systems primarily utilizes flyweights and switches to regulate the operation of the engine in response to changes in rotational speed. Flyweights are mechanical components that move outward from a central point as the speed of the turbine increases. This movement triggers switches that can adjust the fuel flow or other operational parameters to maintain optimal performance and prevent overspeed conditions.

In this arrangement, the system is designed to react dynamically to varying speeds, allowing for precise control over the engine's performance. The use of flyweights makes the control mechanism relatively simple and robust, relying on mechanical motion rather than electrical signals or hydraulic systems. Mechanics that directly respond to speed, like flyweights, are fundamental for effective and reliable operation in turbine control systems.

The other mechanical components listed do have applications in various systems but do not specifically serve the same role as flyweights and switches when it comes to speed sensitivity in turbine engines. Sensors and valves generally relate to feedback and fluid control, while pistons, gears, and electromagnetic coils pertain more to different control mechanisms or systems not directly tied to speed sensitivity in turbine applications.