🔍 Key Concepts

• Remote valve operation on piping systems • Difference between changing motion type vs extending the operator’s reach • Typical locations of valves that are hard to access (e.g., below gratings, overhead, behind guards)

💭 Think About

• Ask yourself: if the valve handwheel or lever is in a safe, convenient place, would you ever need this device? • Which option best matches the word "reach" in normal English use, without adding extra functions like changing direction or effort? • Think about examples on board: long shafts, rods, or extensions connected to a distant valve—what problem are they mainly solving?

✅ Before You Answer

• Make sure you focus on the word "reach" and what problem it directly addresses. • Verify which choices describe changing how the valve moves (type of motion, direction, or effort) versus simply changing where you can operate it from. • Eliminate any option that adds a function not strictly needed just to let you operate a valve located far away or in an awkward spot.