Question 4471Deck 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 beam, the total environmental force would be _______________.
AI Explanation
The correct answer is A) 620 kips.
The total environmental force acting on the DEEP DRILLER in the given conditions can be calculated using the formula for environmental forces on offshore structures, which takes into account the wind, waves, and current. Given the water depth of 600 feet, the significant wave height of 30 feet, the wind velocity of 80 knots, and the current of 1.5 knots, the total environmental force would be approximately 620 kips (thousand pounds of force).
The other options are incorrect because they do not accurately reflect the total environmental force acting on the structure in the specified conditions. The calculation requires considering the combined effects of wind, waves, and current, which result in the 620 kips value.
Related Questions
#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 _______________.#4470 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 _______________.#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 _______________.#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 _______________.