What is a clear indication of secondary damage in a connected system?

• A. No change
• B. Progressive flooding in another joining compartment
• C. A single small leak
• D. A sudden pressure drop

Answer: (B)

Secondary damage shows up when the effects of a breach move into spaces that are connected to the initial damaged area. Seeing progressive flooding in another joining compartment means water has propagated beyond the first space into an adjacent one, indicating the damage has spread through the system rather than staying isolated. That spread is what makes it a clear sign of secondary damage. The other scenarios don’t demonstrate that propagation: no change means nothing affected; a single small leak stays confined to one area; a sudden pressure drop could come from a breach but doesn’t by itself prove that damage has moved into a connected space.