Marina Board Exam: Your vessel is proceeding along a narrow channel displaying the signal required by the rule 28. A small vessel commences to cross the channel from starboard to port. It appears that she will impede your passage. What signal should you give under the circumstances?

Marina Board Exam 

Your vessel is proceeding along a narrow channel displaying the signal required by the rule 28. A small vessel commences to cross the channel from starboard to port. It appears that she will impede your passage. What signal should you give under the circumstances? 

A. 1 prolonged, 1 short, 1 prolonged, 
B. 1 short one short blast 
C. three short blasts 
D. at least 5 short and rapid blast 


Answer:  D.  at least 5 short and rapid blast