Question 2069Deck Safety70% to pass
Which statement about the free surface correction is TRUE?
AI Explanation
The correct answer is D) The free surface correction decreases as the draft increases.
The free surface correction accounts for the reduction in a vessel's righting moment caused by free surface of liquids in slack tanks. As the draft increases, the volume of the slack tank decreases relative to the total displacement of the vessel, causing the free surface correction to decrease. This is in accordance with the regulations and principles of ship stability.
The other options are incorrect - option A is incorrect because the location of the slack tank relative to the KG does not affect the magnitude of the free surface correction. Option B is incorrect because the location of the slack tank on the centerline or off-center does not directly impact the free surface correction. Option C is incorrect because the free surface correction is always subtracted from GM, not added at light drafts and subtracted at deep drafts.
Related Questions
#2067 Your vessel is discharging containers from the main deck with the ship's cranes. Which of the following must be taken into account when calculating the center of gravity as the containers are discharged? #2068 The free surface correction depends upon the dimensions of the surface of the free liquid and the _______________.#2070 The free surface effects of a partially full liquid tank decrease with increased _______________.#2071 Which statement about the free surface effect is TRUE? #2072 Which statement about the free surface correction is TRUE?