Question 4966 Deck General

The correct answer is C) 10.0 seconds. The reasoning is that in a water depth of 150 feet, with a platform pitch angle of 2 degrees, the platform roll period should be longer than 10.0 seconds. This is based on the general principle that in shallow water, the platform roll period needs to be longer to ensure stability and safe operations. The other options are incorrect because 0.5 second is too short for a stable roll period in 150 feet of water, and 5.0 seconds or 13.5 seconds are not the correct threshold for this specific water depth and pitch angle scenario.