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MCA OOW Navigation and Radar Written Examination

This examination is for aspiring deck officers seeking to gain their first UK Certificate of Competency (CoC). It assesses the essential knowledge required for safe navigation and watchkeeping duties at an operational level.

Pass mark 36/60 120 minutes Real test fee approx £150 IAMI (International Association of Maritime Institutions) on behalf of the UK Maritime and Coastguard Agency (MCA) How many can I get wrong?
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Try 3 real MCA OOW Navigation and Radar Written Examination questions
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Q1. Which stage of voyage planning, as defined by the acronym APEM, involves the gathering of all relevant information such as charts, publications, and weather forecasts before laying any courses?
  • A.  Execution
  • B.  Planning
  • C.  Appraisal
  • D.  Monitoring
Show answer & explanation
✓ Answer: C. Appraisal
The Appraisal stage is the initial information-gathering phase where all potential hazards and operational constraints for the intended voyage are identified.
Q2. When using the Admiralty Tide Tables (ATT) to find the height of tide at a Secondary Port, what information must you first obtain from the Standard Port?
  • A.  The magnetic variation for the Standard Port.
  • B.  The times and heights of High and Low Water for the required date.
  • C.  The meteorological forecast for the Standard Port.
  • D.  The name of the Harbour Master at the Standard Port.
Show answer & explanation
✓ Answer: B. The times and heights of High and Low Water for the required date.
Calculations for Secondary Ports are based on applying time and height differences to the predicted HW and LW data of their designated Standard Port.
Q3. A vessel is in the dangerous semi-circle of a tropical revolving storm in the Southern Hemisphere. What is the recommended avoidance action?
  • A.  Bring the wind on the port bow and proceed at best speed
  • B.  Bring the wind on the starboard quarter and proceed at best speed
  • C.  Bring the wind on the starboard bow and proceed at best speed
  • D.  Run with the wind and sea directly astern
Show answer & explanation
✓ Answer: A. Bring the wind on the port bow and proceed at best speed
In the Southern Hemisphere's dangerous semi-circle, the correct evasive action is to place the wind on the port bow (approx. 20-40°) and maintain as much speed as is safe to do so.
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Voyage Planning & Chartwork · 29
Tides & Currents · 30
Navigational Meteorology · 29
Radar & ARPA · 30
Electronic Navigation Systems · 29
IALA Buoyage & Lights · 19
Magnetic & Gyro Compasses · 18
COLREGs & Bridge Procedures · 19
MCA OOW Navigation and Radar Written Examination — common questions
Frequently asked
How many questions are in the MCA OOW Navigation and Radar Written Examination?
The exam has 60 questions. Every Revision Robin mock uses the same 60-question format so your practice matches the real thing.
What is the pass mark for the MCA OOW Navigation and Radar Written Examination?
You need 36 out of 60 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 120 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 IAMI (International Association of Maritime Institutions) on behalf of the UK Maritime and Coastguard Agency (MCA).
How much does the official test cost?
The official IAMI (International Association of Maritime Institutions) on behalf of the UK Maritime and Coastguard Agency (MCA) fee is approx £150. Revision Robin practice is separate and helps you pass first time so you only pay that fee once.