Your ship has run aground and it is necessary to determine whether or not a compartment has flooded. Therefore, you should __________.

Correct Answer: Option C — tap the bulkhead with a hammer to check for a water level

Tapping a bulkhead with a hammer is a standard damage control technique to detect water levels behind steel plating. A solid, dull sound indicates the presence of liquid, while a hollow, ringing sound indicates an empty space. This method allows for safe assessment without risking a catastrophic breach of watertight integrity.