Question 4251Deck General70% to pass
The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). While in field transit, the wind speeds are predicted to increase above 70 knots. What would be the change in KGL if the legs are lowered to the recommended value?
AI Explanation
The correct answer is B) 13.65 feet.
The change in KGL (Keel-to-Ground Clearance) when the legs are lowered to the recommended value during high wind speeds (above 70 knots) would be an increase of 13.65 feet. This is because lowering the legs provides more stability and reduces the risk of the vessel capsizing or sustaining damage in high winds. The increase in KGL helps ensure adequate clearance between the vessel's keel and the seabed, improving the vessel's overall stability and safety.
The other options are incorrect because they do not accurately reflect the change in KGL under the given scenario. Option A (12.75 feet) and Option C (59.30 feet) are incorrect, while Option D (60.50 feet) is too high and does not align with the expected increase in KGL when the legs are lowered.
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