ICC Theory Test Prep (Powerboat): Free Mock Test & Practice Questions

ICC Theory Test Prep (Powerboat)

International Certificate of Competence theory for coastal waters.

Little and often beats one big session. Five minutes on the bus counts.

Free practice questions

Try 3 real ICC Theory Test Prep (Powerboat) questions

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Q1. Under the Colregs, when two power-driven vessels are approaching each other on reciprocal or nearly reciprocal courses so as to involve risk of collision, what must each vessel do?

A. Alter course to starboard so each passes on the port side of the other
B. Alter course to port so each passes on the port side of the other
C. Maintain course and speed until one vessel signals intent
D. Whichever vessel is faster has right of way and holds course

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✓ Answer: A. Alter course to starboard so each passes on the port side of the other

Rule 14 (head-on situation) requires each power-driven vessel to alter course to starboard so that they pass port to port. Altering to port would risk closing the gap and increases collision risk. Speed has no bearing on right of way in a head-on situation.

Q2. What shape and colour is a South Cardinal mark's topmark in IALA Region A buoyage?

A. Two black cones both pointing down
B. Two black cones both pointing up
C. A single black cone pointing up
D. Two black cones point to point (base to base)

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✓ Answer: A. Two black cones both pointing down

A South Cardinal mark carries two black cones, points down (base to base at the top), indicating safe water lies to the south of the mark. Remembering the cone direction (points towards the safe side) is the standard mnemonic used in RYA theory.

Q3. On a chart using a Mercator projection, which statement about a straight line drawn between two points is correct?

A. It represents true distance but not a constant compass course
B. It represents a rhumb line, a course of constant compass bearing
C. It always represents the shortest possible route between the points
D. It represents a line of constant latitude only

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✓ Answer: B. It represents a rhumb line, a course of constant compass bearing

A Mercator chart is designed so that a straight line drawn on it is a rhumb line — a track that crosses every meridian at the same angle, meaning a constant compass course. It is not necessarily the shortest route (a great circle) except over short distances typical of coastal powerboating.

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ICC Theory Test Prep (Powerboat) — common questions

Frequently asked

How many questions are in the ICC Theory Test Prep (Powerboat)?

The exam has 20 questions. Every Revision Robin mock uses the same 20-question format so your practice matches the real thing.

What is the pass mark for the ICC Theory Test Prep (Powerboat)?

You need 15 out of 20 correct to pass, which is about 75%. Our mocks mark you against this exact threshold.

How long do you get?

The test is timed at 30 minutes. Our full mock runs on the same clock so you can practise your pacing.

Are these the real exam questions?

No. Our questions are original and written to match the current syllabus, so they give realistic practice without copying the official paper. Every answer comes with a plain-English explanation. Always confirm current rules and content with RYA.