🔍 Key Concepts

• Gravity davits and how lifeboats are lowered under control • What device specifically limits or controls the maximum lowering speed of the boat, not just starting or stopping it • Distinguish between operational controls (start/stop) and safety speed‑governing devices

💭 Think About

• Which option is designed to automatically keep the descent speed from becoming too fast, even if the operator lets the boat run? • Which components are mainly for positioning or stopping the system, rather than continuously controlling speed? • Think about how an elevator or hoist prevents overspeed; which listed device plays a similar role on a lifeboat davit system?

✅ Before You Answer

• Identify which choice is specifically described in manuals as a speed‑controlling or overspeed‑governing device • Eliminate options that only act at the end of travel or for emergency stop, not for continuous speed control • Confirm that the device you pick would still protect against excessive lowering speed even if the operator mishandles the brake handle