Question 164General Subjects - Assistant Engineer

The correct answer is D) metered-out circuit. In a hydraulic fluid flow control circuit used to control linear actuator speed during retraction, with the pump operating at above maximum pressure, a metered-out circuit is the appropriate configuration. In this setup, the flow control valve is installed in the return line, which allows the flow rate to the actuator to be regulated, thus controlling the retraction speed. This is in contrast to the other options, which do not properly describe the given scenario. The other answer choices are incorrect because: A) A bleed-off circuit is used to control flow rate by diverting excess fluid flow back to the reservoir, not to control the actuator retraction speed. B) A metered-in circuit controls the flow rate to the actuator on the supply side, not the return side. C) A bleed-in circuit is not a common configuration for controlling actuator retraction speed.