🔍 Key Concepts

• Basic hydraulics: how pressure, flow, and pump speed affect heat generation • Relationship between load on the windlass and discharge pressure • What happens inside a hydraulic system when the pump is working against higher resistance

💭 Think About

• Ask yourself: In a hydraulic system, which condition makes the pump work the hardest and convert more input power into heat? • Consider what happens to oil temperature when the system is trying to move fluid but the outlet is partially blocked or highly resisted. • Think about which option would most likely increase internal friction and energy loss inside the pump and lines.

✅ Before You Answer

• Identify which choice would cause the pump to operate against greater resistance to flow. • Eliminate any options that would likely reduce the mechanical work and thus reduce heating. • Recall that higher system pressure at the discharge usually means more load and more energy being converted into heat if flow is restricted.