🔍 Key Concepts

• Difference between local reinforcement of plating vs. vertical supports • Typical structural members used to prevent buckling, bulging, or bending of bulkheads • Common ship structural terms: stanchion, girder, stiffener, bracket, stringer

💭 Think About

• Which option names a member that is usually attached directly to the surface of the bulkhead to keep the plate from deforming? • Which options describe members that primarily act as columns or major beams rather than many smaller reinforcements spread over the plate? • Think about what you see on a bulkhead in a machinery space or tank: what are those narrow, repeated structural shapes welded to the plating called?

✅ Before You Answer

• Verify which term is commonly defined as a secondary structural member attached to plating to increase its strength. • Eliminate any option that mainly means a vertical post or column supporting decks rather than reinforcing a flat plate. • Check standard ship construction diagrams in textbooks: look for the label used on the closely spaced members on bulkheads and shell plating.