One method of controlling rats on vessels is...

🔍 Key Concepts

• Rat-proofing vs. rat control – think about preventing rats from being able to live on the ship in the first place, not removing them after they arrive • How a ship’s design and construction might make it harder for rats to enter or move around • Difference between prevention measures and operational/housekeeping measures like trapping or garbage control

💭 Think About

• Which choice describes something built into the ship itself, rather than something the crew does later during operations? • Which options deal with rats that are already present, and which option would stop rats from being able to find shelter or travel through the vessel? • Look for the answer that focuses on the ship’s physical structure, not day‑to‑day maintenance or dockside measures.

✅ Before You Answer

• Identify which option is about the design/construction of the ship rather than procedures or equipment used after construction • Eliminate any option that mainly describes killing, catching, or deterring rats rather than preventing them from nesting in the vessel’s structure • Ask: “Does this measure change the ship’s structure so rats have no suitable living spaces, or is it just an operational control?” and choose accordingly

One method of controlling rats on vessels is by rat-proofing. Rat-proofing is accomplished by __________.

eliminating possible living spaces for rats when the ship is constructed

trapping and/or poisoning the rats

keeping foods protected and avoiding the accumulation of garbage

installing rat guards on the mooring lines when in port

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🔍 Key Concepts

💭 Think About

✅ Before You Answer