A. 2 to 4 seconds B. 4 to 6 seconds C. 6 to 8 seconds D. 8 to 10 seconds « Previous Next »
Home ROR USCG 189 BOTH INTERNATIONAL & INLAND The duration of a prolonged blast of the whistle is __________. A. 2 to 4 seconds B. 4 to 6 seconds C. 6 to 8 seconds D. 8 to 10 seconds « Previous Next »
Post a Comment