Could Rio de Janeiro carry 15-inch and 9.2-inch guns?

Could the Rio de Janeiro hull take 381 mm main guns and 234 mm secondary guns?

The 15-inch battery is plausible, but the 9.2-inch secondary arrangement is inefficient and operationally troublesome.

The World of Warships-inspired proposal can plausibly fit twin 15-inch mountings on the Rio de Janeiro hull. The 9.2-inch wing turrets are more troublesome because their positions demand awkward handling spaces. Their shell splashes could confuse fire control, and their slow rate makes them a poor answer to torpedo craft. Several twin six-inch turrets would use the same area more effectively while keeping the battery roles easier to distinguish.