🔍 Key Concepts

• Enclosed space hazards such as lack of oxygen, toxic gases, and difficulty in escape • The importance of securing machinery before entering spaces where it operates • Standard safety procedures when one person is working in a potentially dangerous compartment

💭 Think About

• Think about what can go wrong if you enter a chain locker without checking the atmosphere first. What specific dangers might be present? • Consider the risks if the windlass were to start operating while someone is in the chain locker. How could this affect a person inside? • Ask yourself whether safety procedures usually rely on just one precaution, or on several layers of protection working together.

✅ Before You Answer

• Verify the typical safety steps for entering an enclosed or confined space on board a vessel. • Check whether standard practice requires isolating related machinery before entering a compartment where it operates. • Confirm if good seamanship recommends having a watch or standby person whenever someone is in a hazardous space.