Question 4704 Deck General

You are correct, the answer is B) column void spaces. The stability of a semisubmersible MODU (Mobile Offshore Drilling Unit) would be seriously reduced if flooding occurred in the column void spaces. These are the spaces between the outer and inner hulls of the columns that provide buoyancy to the MODU. Flooding in these spaces would significantly decrease the overall buoyancy and stability of the MODU, compromising its ability to remain upright and afloat. The other options are incorrect because: A) Flooding in the ballast tanks would not directly impact the stability as severely as flooding the column void spaces. C) Dry mud tanks do not contribute to the overall buoyancy and stability of the MODU. D) The submerged hulls do not contain void spaces that would significantly impact stability if flooded.