According to training resources from sites like Sea-Man.org and Scribd , common questions in the 0172 module include: Correct Answer Duration of a "prolonged blast" defined in COLREGs?
Educational channels often post full walkthroughs of the 0172 Revision 7 test on Vimeo to help mariners familiarize themselves with the interface. seagull cbt 172 answers
at intervals of not more than 2 minutes