NIMASA STCW Tanker Familiarization Practice Questions - NIMASA STCW Tanker Familiarization Examination (Nigeria) Exam

It provides a protective structural barrier that prevents oil outflows in the event of low-energy grounding or collision. It increases the maximum cargo-carrying capacity of the vessel by utilizing the wing spaces. It acts as a primary duct for the inert gas system to vent vapors directly from the keel. It eliminates the need for ballast water pumps by allowing gravity flooding of the double bottom.