During your oral exam you are asked: what action would you take if, during your watch, you receive a navigational warning (e.g. via NAVTEX) reporting a new wreck or obstruction close to your planned track?

A. Plot the position of the reported hazard on the chart/ECDIS relative to your planned track, assess whether the existing track provides adequate clearance given the reported hazard (and its associated uncertainty, if a position is approximate or a "swept area" is given), amend the track if necessary, inform the Master if the change is significant, and ensure the information is communicated at handover so subsequent watchkeepers are aware of the amended plan and its reasoning

B. Any navigational warning received automatically means the vessel must return to the nearest port

C. No action is required unless the obstruction is directly on the exact charted track line

D. Navigational warnings only need to be read and filed, with no requirement to assess their relevance to the current passage plan

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

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