Question 132General Subjects - 1st Asst/Chief

The correct answer is C) be arranged to develop a maximum vacuum of approximately 10" of mercury. In a constant flow hydraulic system, the pump suction should be arranged to develop a maximum vacuum of approximately 10 inches of mercury. This ensures that the pump maintains adequate flow without the risk of cavitation or pump starvation. Developing a maximum vacuum of 10" Hg allows the pump to draw sufficient fluid from the reservoir while preventing the formation of air bubbles that can disrupt the flow. The other options are incorrect because: A) directly taking suction from the reservoir bottom without filtration can lead to pump damage from debris; B) adding holes in the suction line is not a recommended practice to prevent starvation; and D) attempting to develop the theoretically maximum vacuum can result in pump cavitation and damage.