A 50-question core module covering international COLREGs and parallel Inland Navigation Rules. The pass mark is 90% — tied with Chart Plot for the strictest threshold.
Q100 / Q300
OUPV source module
90%
Pass mark
every Q
Cited to its rule
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A few from each topic — each opens the full question with the correct answer and a citation to the rule it tests. Drill the complete set in the app.
Rule 6 — Safe Speed
Rule 23 — Power-driven Vessel Underway (lights)
Rule 5 — Look-out
Rule 7 — Risk of Collision
Rule 8 — Action to Avoid Collision
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No signup, no credit card — answer 5 real, cited exam questions right now.