can i give the preferences list based o last year ranks alone ,can these be trusted or any variation,i have got 527 in OBC category.......so,can u please post the prefernces order sir.....it will be of great help to me

A Pelton wheel works under a water power of 1.3MW. The hydraulic efficiency of turbine is 95%. Find runner power developed. If mechanical efficiency of turbine is 90%. Find overall efficiency and shaft power of turbine.

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hello sir mere jee main 2021 me 98.1 persentile h ,meri rank kya hogi ,also i belog to obc categry so please tell me also the obc rank . please A humble request by a student