🔍 Key Concepts

• Proper care and maintenance of fire hose couplings • Effects of different cleaning materials (abrasives, oils, grease) on metal fittings • Firefighting equipment standards: keeping couplings clean, corrosion-free, and easy to connect/disconnect

💭 Think About

• Which option would clean corrosion effectively without damaging the metal or leaving a residue that attracts dirt? • Would adding oil or grease to the swivel help or hinder quick connection of fire hoses in an emergency? • Which combination sounds like standard cleaning, rather than lubrication or polishing?

✅ Before You Answer

• Make sure the method does not leave a slippery or sticky coating that can collect grit and dirt • Avoid anything that could scratch or score the metal and make coupling harder to operate • Think about what would be recommended for routine fire-hose maintenance rather than long-term lubrication