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Free boating theory questions and short answers

Search-friendly answers for Day Skipper theory, Marine Radio SRC, VHF procedure, buoyage, lights, tides, CEVNI and practical revision. Each page has one question, a short answer, a mini quiz and a link to revise the full topic.

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CEVNI

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8 questions
A red lock signal remains displayed while the chamber appears empty. What is the defensible action?Which statement preserves the exact distinction between CEVNI blue dangerous-goods and authority signals?Which observation report is strong enough to support a CEVNI vessel-light interpretation?What should shape a CEVNI meeting decision before two vessels enter a narrow fairway?A small craft reaches a lock before a commercial vessel and both will share it. When should the small craft enter?A learner recognises a bridge signal but cannot say what action it requires or what local fact remains to be checked. What is missing?Why is passing a CEVNI multiple-choice test not enough preparation for a busy commercial waterway?A.5 tells vessels not to berth on the side where the board is placed. Which interpretation is complete?