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Which single-letter signal, when used by icebreakers on the Great Lakes, may be made by using the ship's whistle?
A) I
B) M
C) E
D) None
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hamador1 - 2019-10-02 17:23:11
Expired Member (1)
This should be I for India which is two short blasts for coming to port and two short on the morse code key is the same.
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