Worlds longest rock tunnel situated where?

(a)Finland
(b)Greenland
(c)Japan
(d)Sweeden

kartik Default Asked on 23rd February 2017 in General Knowledge.
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2 Answer(s)

(a) Finland

Pushpendra Pal Dean Answered on 25th February 2017.
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The aggregate framework will have a length of 47.8 km, of which 43.71 km is underground and 4.9 km is on viaducts. Northern area of the line is in operation since 2009-12-13. Southern segment of the line is in operation since 2016-02-12. Eventual fate of focal segment is hazy

keltan Default Answered on 25th May 2017.
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