Question 132Safety & Environmental - QMED

The correct answer is B) The compartment must have an opening at the overhead allowing air to escape in addition to having a source of flooding. For a compartment to completely fill up due to flooding, there must be a way for the air inside the compartment to escape as the water enters. If the compartment does not have an opening at the overhead to allow air to escape, the rising water will be blocked, and the compartment will not be able to fully flood. The source of flooding, such as a breach in the hull, provides the water entry, while the overhead opening allows the air to be displaced, enabling the complete flooding of the compartment. The other options are incorrect because they do not address the need for both a water entry point and an air escape path for the compartment to fully flood.