Question 1

In a narrow channel or fairway, Rule 9 requires a power-driven vessel proceeding along the course of the channel to keep as near to the outer limit of the channel which lies on her port side as is safe and practicable.

Accepted Answer

False False. Rule 9(a) requires vessels to keep to the starboard side, not the port side, of a narrow channel or fairway as far as safe and practicable — the same 'keep to the right' principle found in road traffic. Rule 9 also gives way for vessels under 20m, sailing vessels and fishing vessels not to impede the passage of vessels that can only navigate within the channel.

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.