Question 4631 Deck General

The correct answer is D) frames. The support of MODU (Mobile Offshore Drilling Unit) side plating is primarily provided by transverse frames. Frames are the vertical structural members that run perpendicular to the length of the MODU hull, and they are responsible for transferring the loads from the side plating to the longitudinal girders and beams. This arrangement ensures the structural integrity of the MODU's side shell. The other options are incorrect because transverse girders, beams, and bulkheads do not directly provide the primary support for the MODU side plating. Girders and beams are longitudinal structural members, while bulkheads are vertical partitions that do not directly support the side plating.