Both international & inland what equipment for fog signals is required for a vessel 13 meters in length?
a) whistle and bell only
b) bell only
c) whistle, bell, and gong
d) whistle only

correct option is D) Whistle only

Explanation:

solution

equipment for fog signals is  Whistle only  because according to rule 33 of Equipment for Sound Signals

as length 12 meter or more than 12 meter there need only a whistle

and when length is more than 20 meter than bell in addition required with whistle

and length 100 meter or more than gong is additional provided with bell and whistle

so here

correct option is D) Whistle only

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