Which of the following correctly pairs operation with chain length multiplier?

Master the Navigation, Seamanship, and Shiphandling (NSS) – Officer of the Deck (OOD) Phase 2 Exam with engaging flashcards and multiple choice questions, complete with hints and explanations. Prepare comprehensively for your test!

The deciding idea is how much chain length you need relative to water depth to achieve proper stability for each operation. For dredging, you want only a modest scope so the chain doesn’t interfere with the dredging gear and remains manageable in current. About 1.5 times the water depth provides enough horizontal resistance without excessive weight. For dragging operations, you need more chain to keep the vessel from walking with current and to maintain control as gear sweeps; a 3x depth scope gives a deeper catenary and better resistance. For anchoring, you want the greatest scope to maximize holding power and reduce shock loads in wind and current; 5x depth offers the strongest, most stable position. So dredge 1.5x, drag 3x, and anchor 5x aligns with how much horizontal resistance and stability each operation requires.