Maritime QuestionsShiphandling Anchoring

What is meant by "scope" in anchoring, and why does increasing scope generally improve holding power?

A. Scope is the ratio of chain length paid out to the depth of water; a greater scope lays more chain along the seabed, reducing the angle of pull on the anchor itself (keeping the pull more horizontal), which significantly improves the anchor's ability to dig in and hold rather than being lifted or dragged by a more vertical pull
B. A shorter scope always provides better holding power than a longer scope in all conditions
C. Scope is irrelevant to holding power and only affects swing radius
D. Scope refers only to the type of anchor fitted and has nothing to do with chain length
Sign in or create a free account to see the answer and explanation.
What is a key practical difference between a stockless (e.g. Hall or AC-14 type) anchor commonly fitted to merchant vessels and a high-holding-power (HHP) anchor design?
A. Anchor type has no bearing on holding power, only chain scope matters
B. A high-holding-power anchor is designed and tested to achieve significantly greater holding power for a given weight compared to a standard stockless anchor, allowing either a lighter anchor for the same holding requirement or better holding for the same weight — the trade-off can include different digging-in behaviour or seabed type sensitivity depending on design
C. All anchor types provide identical holding power regardless of design, with weight being the only relevant factor
D. Stockless anchors always provide more holding power than any HHP design, making HHP anchors obsolete
Sign in or create a free account to see the answer and explanation.
Why is it important to have minimal headway (ideally close to stopped, or very slight sternway) when letting go the anchor, rather than letting go while still making significant headway?
A. Letting go with excessive headway risks the chain running out too fast and uncontrolled, can cause the anchor to drag or fail to dig in properly as the vessel continues moving over it, and increases the risk of damaging the windlass brake or parting the chain under the sudden load — a controlled, minimal-speed let-go allows the anchor to settle and bite properly
B. Approach speed has no bearing on how well an anchor holds once let go
C. Headway only matters for anchors deployed in deep water, not shallow water
D. Anchors should always be let go at maximum vessel speed to ensure rapid deployment
Sign in or create a free account to see the answer and explanation.
+6 more Shiphandling Anchoring questions available

Create a free account to practise all 9 questions, track your accuracy, and build your Reputation Score.

Create Free Account