Question 185General Subjects - Assistant Engineer

The correct answer is B) a servo control circuit. The replenishing pump in a pressure-closed hydraulic system is responsible for supplying fluid flow to the servo control circuit. This circuit is used to operate various control valves and actuators within the hydraulic system, allowing for precise control and positioning of components. The replenishing pump ensures that the servo control circuit has a consistent and reliable source of hydraulic fluid, enabling the system to function effectively. The other answer choices are incorrect because: A) the main system accumulators are typically charged by the prime mover, not the replenishing pump; C) manually controlled valves are usually positioned by the operator, not the replenishing pump; and D) the reservoir is typically filled and maintained by a separate fill/makeup pump, not the replenishing pump.