WBCS 2021 Mains (General Studies Paper-II) Prev. Yr. Paper (21-May-2022)

Geologically, the Himalayas are classified as which type of mountain system?

As of the year 2022, which of the following tunnels held the record for being the longest operational transportation tunnel of the Indian Railways?

Where is the headquarters of the National Centre for Polar and Ocean Research ($\text{NCPOR}$) located?

The core nuclear reactor in an atomic power plant performs an energy-generation function structurally analogous to which component in a conventional fossil-fuel based thermal power plant?

Who among the following nationalists was the prominent founder of the revolutionary secret society 'Anushilan Samiti' in Bengal in 1902?