🔍 Key Concepts

• heat generation in hydraulic systems due to friction and internal leakage • relationship between pump efficiency, slippage, and temperature rise • effects of fluid level and discharge pressure on pump loading and heating

💭 Think About

• Which pump condition will cause more fluid to circulate through small clearances inside the pump, creating friction and heat? • How would a very efficient pump affect heat generation compared with a pump that has a lot of leakage or wear? • Do higher reservoir levels usually increase, decrease, or have little effect on pump overheating?

✅ Before You Answer

• Identify which option would cause energy losses inside the pump that turn into heat • Eliminate any choices that would normally reduce load or heat generation in the system • Think about which condition is most commonly associated with worn or damaged hydraulic pumps