Marina Board Exam: Your vessel is backing out of a slip in a harbor. Visibility is restricted. You should sound __________.

Marina Board Exam

Your vessel is backing out of a slip in a harbor. Visibility is restricted. You should sound __________. 

A. one long blast only 
B. the danger signal 
C. one prolonged blast followed by three short blasts when leaving the slip 
D. one prolonged blast only 


Answer:  D. one prolonged blast only 

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