Question 4473 Deck General

The correct answer is B) completely slacked. In storm conditions where the DEEP DRILLER has disconnected the marine riser, the two leeward mooring lines should be completely slacked. This is because in the absence of the marine riser, the rig is more susceptible to being blown off position by the wind and waves. Completely slacking the leeward mooring lines allows the rig to weathervane and align with the wind and waves, reducing the stresses on the remaining mooring lines. The other options are incorrect because adjusting the leeward lines to match the windward lines (A) or tightening them (C) would increase the stresses on the mooring system, potentially leading to failure. Slightly slacking them (D) may not provide enough freedom for the rig to weathervane effectively.