RYA Essential Navigation and Seamanship Theory Exam: Free Mock Test & Practice Questions

RYA Essential Navigation and Seamanship Theory Exam

This exam is for new or inexperienced skippers, sailors, and motorboaters who want to understand the fundamentals of navigation and safety. It serves as a foundational course before progressing to more advanced qualifications like the RYA Day Skipper.

Pass mark 30/50 90 minutes Real test fee approx RYA (Royal Yachting Association) How many can I get wrong?

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Free practice questions

Try 3 real RYA Essential Navigation and Seamanship Theory Exam questions

Have a go, then reveal the worked explanation. A taster from a bank of 201 original questions — unlock for unlimited drills and full timed mocks.

Q1. What is the reference level for charted depths on most modern UK Admiralty charts?

A. Mean High Water Springs (MHWS)
B. Lowest Astronomical Tide (LAT)
C. Mean Sea Level (MSL)
D. Highest Astronomical Tide (HAT)

Show answer & explanation

✓ Answer: B. Lowest Astronomical Tide (LAT)

Chart Datum is the lowest predictable tide level (LAT), ensuring the charted depth is almost always the minimum water you will find.

Q2. What is the topmark and light characteristic of a North Cardinal Mark?

A. Two cones pointing down, Q(6)+LFl.15s
B. Two cones pointing towards each other, VQ(9) 10s
C. Two cones pointing up, Continuous Q or VQ
D. Two cones pointing away from each other, Q(3) 10s

Show answer & explanation

✓ Answer: C. Two cones pointing up, Continuous Q or VQ

A North Cardinal has two cones pointing up (to the north). Its light is a continuous quick (Q) or very quick (VQ) white flash, indicating safe water to the north.

Q3. The 'Rule of Twelfths' is an approximation used to estimate the height of the tide. In which hours of the cycle does the water level change the most?

A. The first and sixth hours
B. The second and fifth hours
C. The third and fourth hours
D. The rate of change is constant throughout the cycle

Show answer & explanation

✓ Answer: C. The third and fourth hours

The tide flows fastest mid-cycle. According to the Rule of Twelfths, 3/12ths of the range is covered in the third hour and another 3/12ths in the fourth hour.

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RYA Essential Navigation and Seamanship Theory Exam — common questions

Frequently asked

How many questions are in the RYA Essential Navigation and Seamanship Theory Exam?

The exam has 50 questions. Every Revision Robin mock uses the same 50-question format so your practice matches the real thing.

What is the pass mark for the RYA Essential Navigation and Seamanship Theory Exam?

You need 30 out of 50 correct to pass, which is about 60%. Our mocks mark you against this exact threshold.

How long do you get?

The test is timed at 90 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 (Royal Yachting Association).

How much does the official test cost?

The official RYA (Royal Yachting Association) fee is approx. Revision Robin practice is separate and helps you pass first time so you only pay that fee once.