Question 1

Rule 10(c) addresses a vessel needing to cross a Traffic Separation Scheme (TSS) traffic lane. How should this crossing be carried out?

Accepted Answer

So far as practicable, a vessel shall avoid crossing traffic lanes, but if obliged to do so, shall cross on a heading as nearly as practicable at right angles to the general direction of traffic flow — minimising the time spent crossing the flow of traffic Rule 10(c) — crossing at right angles minimises the time a crossing vessel spends within a traffic lane (and thus the time it is exposed to traffic flowing along that lane), reducing risk for both the crossing vessel and lane traffic.

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.