Question 1777 Deck Safety

70% to pass

You are fighting a fire in a watertight compartment using hoses and salt water. Stability may be reduced because of _______________.

A reduction of water in the storage tanks
B reduction of KG to the minimum allowable
C progressive downflooding
D increase in free surface which reduces the metacentric height
AI Explanation

The correct answer is D) increase in free surface which reduces the metacentric height. The reasoning is that when fighting a fire in a watertight compartment using hoses and salt water, the free surface effect caused by the water movement in the compartment will reduce the metacentric height (GM) of the vessel. This reduction in GM can negatively impact the vessel's stability. The other answer choices do not directly address the impact on stability from free surface effect in a watertight compartment during firefighting operations.

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Official Resources
46 CFR Lifesaving Equipment USCG Marine Safety Center USCG National Maritime Center
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