Question 4477Deck General70% to pass
For the DEEP DRILLER, in deballasting to survival draft when threatened with heavy weather from 100 knot winds, a load form should be calculated to determine that _______________.
AI Explanation
The correct answer is D) KG corrected for free surface effects does not exceed 62.09 feet.
For a deep driller vessel threatened by heavy weather with 100-knot winds, a load form should be calculated to ensure that the KG (vertical center of gravity) corrected for free surface effects does not exceed 62.09 feet. This is a regulatory requirement to maintain the vessel's stability and prevent capsizing in severe weather conditions.
The other options are incorrect because: A) maintaining the same GM (metacentric height) does not necessarily ensure the vessel's stability at the survival draft; B) exceeding the maximum allowable KG would compromise stability; and C) 62.24 feet is not the correct regulatory limit for a deep driller vessel.
Related Questions
#4475 During the passage of a severe storm, the DEEP DRILLER is at survival draft. Strong winds are blowing from the starboard. A careful load form calculation determined that, although the unit is level, the TCG is 2.0 feet to starboard. The value of the wind heeling moment is _______________.#4476 Before deballasting to survival draft in the event of predicted heavy weather, the DEEP DRILLER Operations Manual recommends that the mooring lines be slacked _______________.#4478 The DEEP DRILLER is on location during a storm. Windward anchor tensions begin to exceed the test tensions. To reduce tensions while minimizing offset over the well, you should _______________.#4479 The principal action in changing from transit to survival draft in the event heavy weather threatens is _______________.#4480 In a severe storm while elevated, the drilling loads on the COASTAL DRILLER must be considered as _______________.