🔍 Key Concepts

• Hydraulic pump discharge pressure and what causes it to rise • Function of a relief valve in a hydraulic system • How flow restrictions on suction side vs discharge side affect pressure

💭 Think About

• Think about where pressure will build up if fluid cannot move freely after it leaves the pump • Consider what happens to pump discharge pressure if the pump is trying to push fluid against a blockage • Ask yourself which choice would most likely cause high pressure on the discharge side, not low pressure

✅ Before You Answer

• Identify which options would tend to raise discharge pressure and which would lower system flow/pressure • Check which condition creates a restriction between the pump outlet and the motor, not before the pump • Confirm that a relief valve lifts only when pressure exceeds its setpoint, so look for the situation that would cause that overpressure