Question 4670 Deck General

70% 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 _______________.

A multiplying by displacement
B adding the LCG
C subtracting the LCG
D dividing by displacement
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.

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