Lewith Tankers Exam 3 Practice

Vapor recovery systems are designed to prevent vapors from escaping into the air while cargo is being loaded. As the tank fills, vapor space is displaced by liquid, and without a closed path those vapors would vent to the atmosphere. The recovery system provides a sealed route to capture those vapors and route them to a receptor, condenser, or other processing unit, reducing emissions and improving safety. Condensing and potentially reusing the captured vapors can happen as part of how the system operates, but that reuse is a result of the capture process, not the sole purpose. Venting directly to atmosphere is avoided because the whole point is to prevent releases, and monitoring vapor pressure is a necessary operational check, not the primary aim. So the primary purpose is to capture cargo vapors during loading.