Marina Board Exam: In ANNEX III of the International Rules, if whistles are fitted at a distance apart of more than 100 meters, it shall be arranged that they:

Marina Board Exam

In ANNEX III of the International Rules, if whistles are fitted at a distance apart of more than 100 meters, it shall be arranged that they: 

A. are not sounded simultaneously 
B. an be sounded simultaneously 
C. can both be sounded at the same time 
D. can be switched on only if the other in not in operation 


Answer:  A. are not sounded simultaneously 


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