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Coal and Lime

Trivia brain teasers have some element of trivia in them, but they are not just pure trivia questions.

 

Puzzle ID:#2431
Fun:*** (2.63)
Difficulty:*** (2.65)
Category:Trivia
Submitted By:missie***
Corrected By:sdm1177

 

 

 



In some European countries, if coal is transported in open railway trucks the top is sprayed with a solution of lime. Why?


Answer

The lime solution covers the coal with a white film. If coal is stolen after loading, it is evident that the theft was committed in route and is easily discovered as the train passes by stations on its way to its destination.
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