USCG Exam PracticeDeck machinery and ground tackle
What is the function of the swivel in an anchor chain assembly?
- A. To join the anchor chain to the anchor shackle at the crown
- B. To allow the bitter end of the chain to be slipped in an emergency
- ✓ To prevent turns (twist) from building up in the chain as the vessel swingsCorrect
- D. To connect individual shots of chain at detachable links
Why C is correct
The swivel is installed in the chain assembly specifically to prevent rotational turns from accumulating in the chain as the vessel swings to wind and current. The bending shackle joins the chain to the anchor; detachable links join shots; the bitter-end clench or pelican hook allows emergency slipping.
Cited:NAVEDTRA 14343 §4-1