COLREGs

    Rule 9, questions and explanations

    10 questions on rule 9 within COLREGs. Each one gives the correct answer and the reasoning behind it, so you learn the rule rather than memorising a letter.

    Questions

    01

    A sailing vessel is in a narrow channel. A vessel of 120m can only safely navigate within that channel. What must the sailing vessel do?

    exam standardCOLREGS Rule 9(b)
    02

    In a narrow channel, when overtaking requires the vessel ahead to manoeuvre to permit safe passing, what whistle signals indicate the overtaker's intention and the vessel ahead's agreement?

    examiner levelCOLREGS Rule 9(e) and 34(c)
    03

    Rule 9(c) specifically prohibits which activity in a narrow channel?

    exam standardCOLREGS Rule 9(c)

    7 further rule 9 questions are in the app, with timed quizzes, mock exams and readiness tracking on this topic. Start free.

    Practise this properly

    Reading is not revision. Answer questions, get them wrong, read the explanation and meet them again. Amidships tracks readiness topic by topic so you know where you stand.

    Amidships is an independent study tool and a trading name of The Maritime Consultancy Ltd (Company No. 13436865), registered in England and Wales. Content is based on publicly available syllabuses and the STCW Convention. Always verify with current official publications before examination. Amidships does not issue certificates or qualifications, including STCW certificates, which are issued only by approved training centres.