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Train Toots

Thanks Jerry


Answer :
When a train approaches a road crossing, it blows its whistle four (4) times :
Two (2) longs, one (1) short and one (1) long.

In Morse code that is the letter "Q".
This dates back to when the Queen of England would come into harbor aboard ships.
The ship would blast their horn the letter "Q" to let everyone know the Queen of England was on board and to yield the right of way to it.
Trains adopted this signal for everyone to yield to it.

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