Question 1

Your examiner asks: "In clear visibility, you're unsure whether the give-way vessel is taking sufficient action to avoid collision. What sound signal are you entitled to make, and what does it mean?"

Accepted Answer

Rule 34(d) — at least five short and rapid blasts on the whistle, which may be supplemented by at least five short and rapid flashes on a light — the signal used when in doubt as to whether sufficient action is being taken by the other vessel to avoid collision. It's a warning/doubt signal, not a manoeuvring signal like the 1/2/3 short blast signals under 34(a) The Rule 34(d) doubt/danger signal (5+ short rapid blasts, optionally with light) is distinct from the manoeuvring indication signals in 34(a) and is a frequently under-revised provision — candidates often know the 1/2/3-blast manoeuvring signals cold but forget the doubt signal exists as a separate, specific tool for exactly the situation examiners like to describe: "you're the stand-on vessel and the other ship still hasn't acted."

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.