The term bulkhead refers to:

• A. A piping arrangement with connections used to load or unload bobtails or cargo transports
• B. A protective barrier
• C. A wall plate
• D. A gauge

Answer: (A)

The through-wall piping and fittings used to transfer propane. In propane handling, a bulkhead is the assembly that passes through the wall of a tank or trailer and provides the connections needed to load or unload the product safely. It creates a leak-tight interface for hoses and transfer lines, which is why it’s about the connection points rather than just a barrier, a wall plate, or a gauge. A protective barrier, a wall plate, and a gauge serve different purposes and do not describe the through-wall transfer connections that define a bulkhead.