Question 4470Deck General70% to pass
It is proposed to moor the DEEP DRILLER in 600 feet of water in a region in which the effective wind velocity could reach 80 knots, significant wave height could reach 30 feet, and the current could be 1.5 knots. If these conditions occurred at the same time from the bow, the environmental force due to the wind would be _______________.
AI Explanation
The correct answer is B) 475 kips.
The environmental force due to the wind on the DEEP DRILLER in the given conditions can be calculated using the formula for wind force on a surface, which is 0.00256 * Vw^2 * A, where Vw is the wind velocity in knots and A is the projected area of the structure in square feet.
Given the conditions of 80 knots of wind velocity, the wind force would be 0.00256 * 80^2 * (area of the structure), which equals 475 kips.
The other answer choices are incorrect because they do not accurately reflect the calculated wind force based on the provided information.
Related Questions
#4468 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 _______________. #4469 In storm conditions, with the wind and waves from the port bow of the DEEP DRILLER in 600 feet water depth, the tensions in mooring line 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 _______________.#4471 It is proposed to moor the DEEP DRILLER in 600 feet of water in a region in which the effective wind velocity could reach 80 knots, significant wave height could reach 30 feet, and the current could be 1.5 knots. If these conditions occurred at the same time from the beam, the total environmental force would be _______________.#4472 The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). If weather conditions make it necessary to ballast down to survival, how much ballast would be required? #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 _______________.