True course is 270°. Variation at your position is 6°W. What is the magnetic course?

Q: True course is 270°. Variation at your position is 6°W. What is the magnetic course?

276° Going from true to magnetic, westerly variation is added: 270° + 6° = 276° magnetic. The rule 'westerly error, best go easterly (add)' applies when converting true to compass.

A. 264°

B. 276°

C. 270°

D. 066°

You're preparing a passage plan for a coastal leg in a yacht drawing 3.2m. At one point the chart shows a least depth of 3.8m at chart datum. What MUST you check before finalising this leg?

A. The tidal height at the time of transit to confirm sufficient under-keel clearance

B. The yacht's fuel consumption for that leg

C. The colour of the seabed shown on the chart

D. Only the distance to the next waypoint

During your watch the ECDIS gives a "safety contour crossing" alarm. What is the correct response?

A. Switch the ECDIS to standby mode and navigate by GPS position alone

B. Ignore it — ECDIS alarms are frequently false and can be left running

C. Assess the situation against the planned route and charted depths, take action to maintain safe water, and inform the Master if there is any doubt

D. Acknowledge and silence the alarm immediately so it does not distract the helmsman

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