Safety & Environmental Protection (Deck) USCG Question #2351 (Set 72)

You have 12 containers of rig supplies each measuring 10'L by 4'B by 5'H and weighing 2.0 tons each. Each container is stowed on deck. What is the maximum VCG permitted of the remaining cargo if you are carrying rig water and load to maximum capacity? See illustration D037DG below.

USCG Exam Illustration D037DG
USCG Examination Diagram: Illustration D037DG
Official USCG Answer & Rule Citation

Correct Answer: Option B — 0.9 foot

Evaluating container weight and vertical center of gravity per illustration D037DG, twelve rig supply containers at 2.0 tons each generate substantial deck moments, restricting the maximum permitted VCG of remaining cargo to 0.9 foot when loaded to maximum capacity with rig water.

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