Which statement best describes a risk of not counterflooding when a space is flooded?

Which statement best describes a risk of not counterflooding when a space is flooded?

• A. It can worsen trim and reduce stability.
• B. It can cause progressive flooding and loss of stability.
• C. It increases buoyancy.
• D. It prevents any further flooding.

Answer: (B)

When a space is flooded on one side, the ship becomes heavier on that side and will heel toward it. If you don’t counterflood the opposite side, water can spread to other compartments, especially through openings that are now under water, and more water accumulates in the hull. This creates a progressively worse flooding condition, which in turn reduces the ship’s righting moment and stability. The most significant danger here is the ongoing, uncontrolled spread of flooding and the resulting loss of stability that can lead toward capsizing. The idea that flooding would increase buoyancy is incorrect—flood water adds weight and lowers buoyancy, not increases it.

When a space is flooded on one side, the ship becomes heavier on that side and will heel toward it. If you don’t counterflood the opposite side, water can spread to other compartments, especially through openings that are now under water, and more water accumulates in the hull. This creates a progressively worse flooding condition, which in turn reduces the ship’s righting moment and stability. The most significant danger here is the ongoing, uncontrolled spread of flooding and the resulting loss of stability that can lead toward capsizing. The idea that flooding would increase buoyancy is incorrect—flood water adds weight and lowers buoyancy, not increases it.