Deck_2014 : Rules of the Road - 435/1090
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| BOTH INTERNATIONAL & INLAND The duration of each blast of the whistle signals used in meeting and crossing situations is __________ . |
| A) about 1 second |
| B) 2 or 4 seconds |
| C) 4 to 6 seconds |
| D) 8 to 10 seconds |
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