Marina Exam Reviewer: In the International Code of signals what does a group of three letters indicates?

Marina Exam Reviewer

In the International Code of signals what does a group of three letters indicates? 

A. a group from the general signal code 
B. the vessels national identity signal 
C. a group from the medical signal code 
D. urgency or an emergency 



Answer:      C. a group from the medical signal code 

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