Question 4670Deck General70% to pass
In the DEEP DRILLER, the longitudinal free surface correction (FSCL) is obtained from the total of the longitudinal free surface moments (FSML) by _______________.
AI Explanation
The correct answer is D) dividing by displacement.
The longitudinal free surface correction (FSCL) is obtained by dividing the total of the longitudinal free surface moments (FSML) by the vessel's displacement. This is because the FSCL represents the longitudinal shift in the vessel's center of gravity due to the free surface effect of liquids in tanks, and this shift is proportional to the vessel's displacement.
The other options are incorrect because multiplying by displacement (A) or adding/subtracting the longitudinal center of gravity (LCG) (B, C) would not accurately capture the relationship between the free surface moments and the resulting shift in the center of gravity.
Related Questions
#4668 The DEEP DRILLER, at a draft of 60 feet, has -3,600 ft-tons of transverse moments. How much ballast should be transferred between tanks 10P and 10S to level the unit in list? #4669 A virtual rise in the center of gravity of a MODU may be caused by _______________.#4671 The DEEP DRILLER, while loaded as shown in the Sample Load Form #4 (Drilling), suffers damage to the port aft column below the waterline. Pumping from tank 8P and 9P is not sufficient to prevent increasing port list and stern down trim. You should consider counterflooding in tank _______________.#4672 On a MODU, the keel is the primary strength member of the lower hull form in which direction? #4673 The DEEP DRILLER is loaded as shown in the Sample Load Form #2 (Ballasting to Survival). What is the VCG of the added liquid if 100.76 long tons of ballast are added to Ballast Tank #8S?