🔍 Key Concepts

• Hydraulic pump vs. hydraulic motor symbol differences (triangle pointing toward vs. away from the circle center) • How direction of flow or rotation is shown in ISO/ANSI hydraulic symbols • What extra marks on the symbol (shaft line, arrows) indicate about uni-directional vs. bi-directional operation

💭 Think About

• Look closely at which way the small triangle inside the circle is pointing—does that suggest the device is driving the fluid, or being driven by the fluid? • Does the symbol show one clear flow direction, or does it suggest that flow (or rotation) can occur in both directions through the same unit? • Compare Fig. C to typical textbook symbols for pumps and motors—does Fig. C look more like the symbol for a pump or for a motor?

✅ Before You Answer

• Verify whether a triangle pointing into the circle represents a motor and a triangle pointing out of the circle represents a pump in your symbol reference sheet. • Confirm if the symbol shows one arrow or feature for a single direction versus a reversible/bidirectional indication (such as opposing arrows). • Make sure your final choice matches both the type of component (pump vs. motor) and the direction capability (uni-directional vs. bi-directional).