Offers an online COLREG test simulator and complete module walkthroughs.
Because the test is randomized, seafarers often look for database walkthroughs to prepare. Several reputable maritime community platforms host answer keys and simulators: seagull cbt 0172 answers
Understanding the duration of a "prolonged" blast (4–6 seconds) and fog signals for specific vessels, such as one prolonged followed by two short blasts for a vessel Restricted in her Ability to Manoeuvre (RAM). Offers an online COLREG test simulator and complete
Be prepared for questions on the Annexes of the Rules, such as Annex IV for Distress Signals and Annex II for fishing vessels in close proximity. seagull cbt 0172 answers
Identifying vessels by their light configurations (e.g., "One all-round white light at or near the forward and one aft" for a towed object under 25m breadth).