🔍 Key Concepts

• Torque as a measure of rotational force • Standard engineering units for torque in U.S. customary system (inch-pounds vs. foot-pounds) • How motor speed (RPM) and torque are usually specified together on data plates

💭 Think About

• Which option actually describes a unit of torque, and which options describe speed or operating conditions instead? • Look at each choice and separate what is the force × distance part, and what is just a condition (like speed, viscosity, stroke). • Ask yourself: when manufacturers rate a hydraulic or fluid power motor, how do they usually pair torque and RPM on a spec sheet?

✅ Before You Answer

• Identify which answers contain a clear force × distance unit (pounds × distance). • Make sure the unit you pick is a pure torque unit, not something per stroke or dependent on fluid properties like viscosity. • Confirm that RPM (revolutions per minute) is a measure of speed, not torque, and see how it appears in the more correct-style rating statement.