🔍 Key Concepts

• How pump performance is often expressed in terms of energy per unit weight of fluid • How a pressure can be expressed as an equivalent height (feet or meters) of liquid • The difference between conditions at the suction side and discharge side of a pump

💭 Think About

• Which choice talks about a pressure or energy difference that could be expressed as an equivalent height of liquid? • Are the physical dimensions of the piping itself (its literal length or height) the same as the pump’s performance measure? • If you converted discharge and suction pressures into ‘feet of liquid’, which relationship would tell you how much the pump is actually doing to the fluid?

✅ Before You Answer

• Make sure the option you choose is about fluid pressure/energy, not just pipe geometry. • Check whether the definition involves both suction and discharge sides of the pump. • Verify that the term refers to an equivalent height of liquid column the pump can produce, not just the pipe’s installed height.