Question 1

Rule 2 (Responsibility) contains the so-called 'general prudential rule'. As Master, how should you understand its effect on the other Rules?

Accepted Answer

Nothing in the Rules exonerates any vessel from the consequences of neglect to comply with the Rules, or of neglecting any precaution required by the ordinary practice of seamen or by the special circumstances of the case — and due regard shall be had to all dangers of navigation and collision and any special circumstances, including the limitations of the vessels involved, which may make a departure from the Rules necessary to avoid immediate danger Rule 2 is frequently tested precisely because it is misunderstood as a loophole. In reality it does two things: 2(a) confirms that complying 'on paper' with the Rules does not excuse a vessel from the consequences of poor seamanship or failing to take precautions the ordinary practice of seamen would demand; 2(b) recognises that in extremis, a departure from the Rules may be necessary — but this is a narrow exception for immediate danger, not a general licence to disregard the Rules.

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.