If a compartment has single-walled bulkheads, compartments should be tested on which of the following?

When testing compartments with single-walled bulkheads, the focus is on ensuring the integrity and suitability of those bulkheads under potential operational conditions. Testing opposite sides is essential because it allows for the assessment of the wall structure's ability to contain any liquids or materials, preventing leaks from one compartment to another.

Testing opposite sides helps in identifying any weaknesses or flaws that may not be evident when examining only adjacent or same-sided bulkheads. This approach simulates real-world scenarios where pressure and potential leaks can occur from various sources, such as filled tanks or varying fluid levels in the compartments.

Moreover, it ensures a thorough evaluation of the compartmentalization integrity, contributing to safer operations and adherence to regulatory standards. By confirming that opposite sides can withstand testing pressures without issues, operators can confidently rely on the bulkheads to perform adequately during regular use.