Question 1

You alter 30 degrees to starboard as planned. What should you do immediately after taking this action?

Accepted Answer

Continue to monitor the target closely by radar plot and visually to verify your action is having the intended effect (CPA/TCPA opening out as expected) — Rule 8(d) implicitly requires checking the action is effective, and a further action may be needed if it is not Taking avoiding action is not the end of the obligation — you must check the action is actually working. A collision-avoidance manoeuvre that is assumed effective but never verified is a recognised failure pattern in real groundings and collisions.

Question 2

Rule 5 (Look-out) requires every vessel at all times to maintain a proper look-out by sight and hearing, as well as by all available means appropriate in the prevailing circumstances and conditions — and this duty applies even when the vessel is at anchor in a busy anchorage.

Accepted Answer

True True. Rule 5 applies 'at all times' and to 'every vessel'. A vessel at anchor in a busy anchorage still needs an effective look-out to detect drifting vessels, dragging anchors, or approaching traffic that may pose a risk of collision or contact.

Question 3

Under Rule 6 (Safe Speed), a vessel fitted with a fully operational radar and ARPA never needs to reduce speed in restricted visibility, because the equipment guarantees early detection of other vessels.

Accepted Answer

False False. Rule 6 explicitly lists radar capability as one factor to consider, but also requires accounting for the state of visibility, traffic density, manoeuvrability, and the limitations of radar (range scale, sea/rain clutter, blind sectors). Even a vessel with excellent radar must proceed at a speed that allows proper and effective action to avoid collision and to be stopped within a distance appropriate to the prevailing circumstances.