In storm conditions, with the wind and waves from the port bow of the DEEP DRILLER in 400 feet water depth, the tensions in mooring lines 1 and 2 are 400 kips. Completely slacking the mooring lines 5 and 6 reduces the tension in mooring lines 1 and 2 to about __________.

Correct Answer: Option B — 330 kips

Modifying mooring pattern tensions on semi-submersible drilling units like the DEEP DRILLER involves catenary mechanics. Slacking leeward lines 5 and 6 reduces restoring forces, causing load redistribution that lowers windward line tensions to approximately 330 kips under 400 feet water depth parameters outlined in the operations manual.