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20:00
Which option best reflects Rule 19 — Conduct of Vessels in Restricted Visibility?
A
Whistle from 12 m, bell added from 20 m, gong added from 100 m — and the gong's tone must not be confused with the bell's.
B
Rule 33 specifies the required sound signal equipment by vessel length.
C
Every vessel shall proceed at a safe speed adapted to the conditions and have engines ready for immediate manoeuvre.
D
Channel overtaking uses the prolonged-plus-short combinations, not the basic one- and two-blast signals.