A pilot valve and servomotor are utilized in mechanical-hydraulic governing systems on a turbo generator unit in order to __________.

Correct Answer: Option B — provide sufficient force to operate large steam lifting beam control valves

Turbo generator steam valves require substantial lifting force to overcome high steam pressures against large valve areas. A pilot valve and servomotor system amplifies low-power governor signals into high-force hydraulic actuation capable of positioning heavy lifting-beam valves.