🔍 Key Concepts

• Methods of securing heavy wheeled cargo on Ro-Ro (Roll-on/Roll-off) decks • Difference between lashing materials (rope, webbing, chains) and tensioning devices • Why heavy vehicles need high-strength, adjustable tension to stay in place in rough seas

💭 Think About

• Think about which option is a device that tightens a lashing, not the lashing material itself • Which choice is most commonly seen on car decks and trailer decks to pull chains or web straps tight? • Consider what is needed to repeatedly adjust and maintain tension on very heavy vehicles during a voyage

✅ Before You Answer

• Identify which choices are materials (like rope or webbing) versus hardware used to tension those materials • Ask yourself which option is specifically designed for high load securing on vehicle decks, not light or temporary securing • Visualize real-world Ro-Ro decks: what equipment do you actually see being used to tighten down trucks and trailers?