Deck General USCG Question #4281 (Set 137)

While loaded as shown in the Sample Load Form #4 (Drilling), all of the liquid mud is dumped. What would be the new draft?

Official USCG Answer & Rule Citation

Correct Answer: Option A — 56.69 feet

Discharging liquid mud from the rig's mud tanks removes weight from the vessel, decreasing displacement. Referring to the hydrostatic particulars for Sample Load Form #4, the total weight reduction results in a new lighter draft of exactly 56.69 feet.

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