While at anchor, what parameters should the anchor watch routinely monitor to detect dragging or a developing hazard?

A. Only the engine room temperature gauges

B. Anchor watches are unnecessary if the anchor alarm is set, as the alarm will handle everything

C. The vessel's position relative to the anchor position/swinging circle (e.g. via GPS anchor watch alarm), depth, weather/wind changes, the bearing and range of the anchor chain (for signs of dragging or fouling), and traffic or other vessels that may be closing

D. Only the deck watch needs to monitor anything; the bridge can be left unmanned

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