Pass the Grade 2 boat licence written exam
903 questions to nail it
The Pleasure Vessel Operator Grade 2 written exam has two papers — Part A (Navigation Knowledge) and Part B (Marine Engineering Knowledge). This app covers the collision regulations, navigation lights, buoyage system and engine machinery with 903 carefully written questions. Every light and day shape comes with a diagram and a detailed explanation, so you can finish a whole topic in just 10 minutes a day.
- Full Part A & Part B coverage: COLREGs, lights & shapes, IALA buoyage and engine machinery, topic by topic
- Lights, day shapes and buoys all come with diagrams — no guessing from text descriptions
- Wrong answers go straight to your review list; revise only your weak spots before the exam, with zero ads to break your focus


Why revise for the Grade 2 boat licence with this app?
From question-by-question practice to full timed mock exams — collision rules, lights, buoys and machinery, we help you master every part
Official ModeTrue-to-life timed mock exams for Parts A & B
A faithful recreation of the real Part A and Part B timed papers. The moment you submit, you see how many you got right in each paper and where you fall short — feel the exam pressure at home so you stay calm on the day.
- Part A (Navigation) and Part B (Marine Engineering) scored separately
- Live countdown; the paper auto-submits when time runs out
- See your performance per paper on submission, and know exactly what to shore up
Part A — NavigationCollision rules, lights and buoys, one by one
Part A covers maritime regulations, the International Regulations for Preventing Collisions at Sea, navigation lights and day shapes, the IALA buoyage system, weather and first aid. Each topic shows how much you have completed, so you can see at a glance what is done and what remains.
- Drill the commonly tested give-way / stand-on scenarios until they are second nature
- Practise recognising navigation lights and day shapes over and over
- Tell IALA lateral marks and cardinal marks apart with confidence
Diagram QuestionsLights, shapes and buoys all come with diagrams
Memorising night lights and buoys from text alone puts you at a real disadvantage. In this app the light, day-shape and buoy questions all come with diagrams, so you get used to the real appearance while practising and never mix up similar marks in the exam.
- Learn the ball, diamond and cylinder day shapes one by one
- The red can (port) and green cone (starboard) keep coming up until you can tell them apart
- See the explanation right after answering, so you know exactly where you went wrong

Wrong-Answer ReviewNo wrong answer ever slips away
Questions you get wrong are collected automatically into your review list, so right before the exam you drill only the ones you missed and save a huge amount of time. Bookmark the ones you are unsure of and come back to them any time.
- Wrong answers collected automatically — revise them with one tap
- Bookmark the questions you have not yet mastered
- Every question has an explanation; understand it before moving on
Detailed ExplanationsBreak down your collision and machinery blind spots
When two vessels meet, which one gives way? What does black smoke from a diesel engine mean? Every mock question comes with a detailed explanation that breaks down confusing maritime rules and mechanical principles in the plainest words, so you genuinely understand how things work in practice.
- Give-way scenarios and the meaning of each light, spelled out point by point
- Engine, fuel and cooling systems explained in simple terms
- Start from understanding, so you can reason it out instead of rote-memorising
In a crossing situation, the vessel that has the other on her own starboard (right-hand) side is the give-way vessel. She should take early and substantial action — usually altering course to starboard to pass astern of the other vessel — and avoid crossing ahead of her.
Ad-Free & OfflineA clean space to practise, anywhere, any time
Recognising complex navigation lights and buoys demands real focus. We keep a strict zero-ad policy — no pop-ups, no banners. Once questions are downloaded you can practise offline too, turning your bus ride or the wait for a ferry into a study session.
- Zero ads throughout — your train of thought is never interrupted
- Practise offline once downloaded — no connection needed
- Free to download; try before you upgrade
The Grade 2 boat licence exam at a glance
The Pleasure Vessel Operator Grade 2 written exam has two parts; the question bank is organised into topics that follow the official syllabus

Part A · Navigation Knowledge
- Maritime regulations and safety knowledge
- COLREGs give-way / stand-on scenarios
- Navigation lights and day shapes
- IALA buoyage system (Hong Kong is Region A)
- Weather, tides and the navigation environment
- First aid and survival at sea

Part B · Marine Engineering Knowledge
- Engine structure and the four-stroke cycle
- Fuel systems and fuel supply
- Cooling systems and dealing with overheating
- Batteries and electrical-system maintenance
- Fire prevention and firefighting equipment
- Daily checks and maintenance procedures
For the actual number of questions, the pass mark and enrolment arrangements, please refer to the latest announcements from the Hong Kong Marine Department.
Frequently Asked Questions
It is free to download and comes with a free trial allowance so you can experience the full practice, mock exam and wrong-answer review features. Upgrade for unlimited practice only once you find it useful — try before you buy.
Boat Licence Study Guides
Collision rules, lights and shapes, buoyage and machinery — the key exam topics, one article at a time

