Question 1679 Deck Safety

The correct answer is A) eliminating possible living spaces for rats when the ship is constructed. Rat-proofing involves designing and constructing a vessel in a way that eliminates potential harborage and nesting areas for rats. This includes closing off any openings or gaps larger than 1/4 inch, using smooth materials that make it difficult for rats to climb, and incorporating features that prevent rats from entering the vessel. Proper rat-proofing during construction is an effective way to control rat infestations on ships. The other options, while useful methods, are not the primary focus of rat-proofing. Keeping food protected and avoiding garbage accumulation (B) and installing rat guards on mooring lines (C) are important, but they do not address the fundamental issue of eliminating potential rat habitats. Trapping and poisoning (D) are reactive measures, whereas rat-proofing during construction is a proactive approach to preventing rat problems in the first place.