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Under Rule 35 — Sound Signals in Restricted Visibility, what should a navigator remember?
A
After manoeuvring, verify that the action is working.
B
A vessel proceeding along the course of a narrow channel shall keep as near to the outer limit of the channel which lies on her starboard…
C
A vessel of less than 20 metres or a sailing vessel shall not impede a vessel that can safely navigate only within the channel or fairway.
D
Special-status vessels: 1 prolonged plus 2 short every 2 minutes.