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[ Official ] How was the Prelims 2021 paper?

As per Hardworking human (telegram channel name ) 


His prediction for last three years were very close to the cut off, so this time trusting his prediction

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@Fulcrum @babu_bisleri Also indus water treaty mentions that panjnad ( chenab and sutlej joins to form panjnad) to be a part of chenab.. it means chenab meets indus directly according to this..                         

https://mea.gov.in/bilateral-documents.htm?dtl/6439/Indus



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@babu_bisleri even i have kept sutlej.. i wish upsc gives it as answer.. but now i feel chenab is answer.. as@Fulcrum said.. among the options chenab is the only river into which other three rivers (options) flow

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@Gentleman Central water commission seems like a good source.. whether upsc considers it or not, we ( who have kept sutlej as answer ) can atleast try raising the issue ( confusion on which river joins indus directly ) to upsc.. 

https://upsconline.nic.in/miscellaneous/QPRep/

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@Fulcrum Regarding pressure cooker question.. as you have mentioned, i too agree on the weight of dead weight ( vent/ siti ) matters, but i don't understand how the weight of lid matters..

I have seen some images and no where it is given vent/siti as "lid".. so i am assuming upsc is asking about "lid"and not the vent in the question..  can you ( or anyone ) please explain if you know how weight of lid matters?

Thanks..

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@AureliusM To my current understanding levels.. even i feel weight of lid doesn't matter.. but temperature also doesn't matter to an extent.. so that's why i got doubt whether examiner meant "lid" as "vent" in the question.. also to know if in anyway weight of lid matters..  

I have checked many articles.. everywhere it is written that it is the weight of vent that matters.. 

Even i kept answer taking weight of lid doesn't matter..  


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