Vice President M. Venkaiah Naidu inaugurated India’s longest electrified rail tunnel

Vice President M. Venkaiah Naidu inaugurated India's longest electrified rail tunnel
Question: Recently, Vice President M. Venkaiah Naidu has inaugurated India’s longest electrified rail tunnel in which of the following state?
(a)Andhra Pradesh
(b) Tamil Nadu
(c) Maharashtra
(d) Telangana
Answer :(a)
Related facts:
  • On 1 September 2019,Vice President M. Venkaiah Naidu inaugurated India’s longest electrified rail tunnel between Cherlopalli and Rapuru stations of Andhra Pradesh.
  • The 6.6-km long tunnel is a part of the Obulavaripalli-Venkatachalam railway line.
  • The country’s first electrified tunnel is built in the shape of a ‘horse shoe’ using the New Austrian Tunneling Method (NATM).
  • Construction of the tunnel was a major challenge as the tunnel area was full of quartzite and phyllite rocks.
  • The tunnel construction was completed in a record time of 43 months.
  • Built at a cost of ₹437 crore, Vice President M. Venkaiah Naidu termed the tunnel “an engineering marvel.”
  • The height of tunnel (rail level to roof) is 6.5 meters and the minimum height of contact wire is maintained at 5.2 meters.

Links:

https://www.livemint.com/news/india/india-s-longest-electrified-rail-tunnel-inaugurated-in-andhra-pradesh-key-things-to-know-1567421369057.html

https://timesofindia.indiatimes.com/city/vijayawada/andhra-pradesh-gets-indias-longest-electrified-rail-tunnel/articleshow/70942187.cms