Deck : Deck General - 3360/5076
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| A mobile offshore drilling unit is on the waters of the U.S. Outer Continental Shelf. It has a length of 220 feet and a breadth of 190 feet. Where must the obstruction lights be located? |
| A) At the bow of the rig |
| B) At the bow and stern of the rig |
| C) At the top of the drill mast |
| D) On each corner of the rig |
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