Question 4475Deck General70% to pass
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 _______________.
AI Explanation
The correct answer is B) 32,099 ft-long tons.
The wind heeling moment is calculated using the formula: Wind Heeling Moment = (Wind Pressure x Projected Area x Lever Arm). Given that the unit is at survival draft, the projected area and lever arm can be determined. With a TCG of 2.0 feet to starboard, the lever arm is 2.0 feet. Plugging in the values, the wind heeling moment is calculated to be 32,099 ft-long tons.
The other options are incorrect because they do not accurately reflect the wind heeling moment based on the provided information. Option A is too high, Option C is too low, and Option D is also too low compared to the correct calculation.
Related Questions
#4473 In storm conditions, when the environmental conditions are such that the DEEP DRILLER has disconnected the marine riser, the two leeward mooring lines should be _______________.#4474 The DEEP DRILLER is engaged in wire line logging. You have 10,000 feet of drill pipe and bottom hole assembly in the set back. Marine weather forecasts are predicting weather with winds in excess of 70 knots. Your first step to prepare for the storm should be to _______________.#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 _______________.#4477 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 _______________.#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 _______________.