How are mooring lines named and numbered?

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!

Multiple Choice

How are mooring lines named and numbered?

Mooring lines are identified by their position along the ship from bow to stern, and when there are multiple lines of the same type they are numbered in order from forward to aft. The forwardmost line on a side is number one, the next one aft is number two, and so on. This keeps references precise on the busy deck, so commands like “let go line two” or “take in line three” are unambiguous even when several springs or breasts are used. A line’s name (for example spring or breast) tells you its function or how it restrains motion, but the numbering system is about the location along the length of the ship, arranged so everyone can communicate quickly and clearly from forward to aft.

Mooring lines are identified by their position along the ship from bow to stern, and when there are multiple lines of the same type they are numbered in order from forward to aft. The forwardmost line on a side is number one, the next one aft is number two, and so on. This keeps references precise on the busy deck, so commands like “let go line two” or “take in line three” are unambiguous even when several springs or breasts are used.

A line’s name (for example spring or breast) tells you its function or how it restrains motion, but the numbering system is about the location along the length of the ship, arranged so everyone can communicate quickly and clearly from forward to aft.

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