Deck : General Navigation - 217/2138
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| The lock chamber is 600 feet X 110 feet. Your towboat is 150 feet X 35 feet. Which of these tows will require a double lockage? |
| A) A set-over single |
| B) 4 standard barges abreast next to your boat's head and 3 jumbo abreast in the lead |
| C) 6 jumbo (3 abreast and 2 long) with a standard on each side of your boat |
| D) 9 jumbo barges |
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