Which of the following is the longest Railway Tunnel?

A. St. Gothard (Switzerland

B. East Finchley (London)

C. Cascade (U.S.A.)

D. Tanna (Japan)

Answer: Option D

Solution(By Examveda Team)

Tanna (Japan) is the longest Railway Tunnel. Tanna Tunnel is a railroad tunnel in Shizuoka Prefecture, Japan operated by JR Central's Tokaido Main Line. This 7.8 km long tunnel shortened the trunk route between Tokyo and Kobe by omitting a detour round the mountains between Atami and Numazu.