Question 4581 Deck General

The correct answer is D) ballast down. When a semisubmersible rig under tow experiences pounding on the forward transverse brace, the surest way to alleviate the condition is to ballast down the rig. Ballasting down the rig will increase its draft and submerge more of the structure, reducing the impact of waves on the forward transverse brace and minimizing the pounding. The other options are not as effective in addressing the pounding issue. Slowing down the tug (A) may help somewhat, but does not directly address the structural impact. Changing course (B) may not be feasible or effective. Adjusting the tow line length (C) is unlikely to significantly impact the pounding on the forward transverse brace.