USCG Exam PracticeAnchoring and mooring operations
A vessel riding to a single anchor begins to drag. The officer of the watch observes the chain alternately going slack and then jerking taut with vibration. After veering additional scope, the anchor continues to drag. Which action is most appropriate under both regulatory requirements and seamanship practice?
- A. Reduce scope to increase the upward pull on the anchor and reset the flukes
- ✓ Let go a second anchor, use a running moor or standing moor to spread the load and reduce the swinging circleCorrect
- C. Pass the chain stopper and await improvement in weather conditions before taking further action
- D. Shift to a mushroom anchor, which provides superior holding power in all bottom types
Why B is correct
When additional scope fails to stop dragging, letting go a second anchor is the appropriate next step. A running moor or standing moor spreads the load and reduces the swinging circle. 33 CFR §164.19(c) also requires the master to be ready to let go a second anchor when conditions threaten safety, and NAVEDTRA 14343 §4-2 confirms this practice. Reducing scope would worsen holding power, and the mushroom anchor is identified only for permanent moorings.