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1/20
20:00
Under Rule 12 — Sailing Vessels, what should a navigator remember?
A
Manual sounding must always remain possible even if the device is electronic.
B
Bell and gong may be replaced by equivalent equipment, but manual sounding must always remain possible.
C
5 or more rapid blasts are the doubt or danger signal.
D
Windward vessel gives way to leeward when on same tack.