@Aurang_mirasudar thanks for the effort you put in in finding the source of the questions.....i remember last year your source finding for csat helped a lot.....btw can you shed some light on what could be the answer of copper smelting question?
@sjerngal i guess after 23 days
@jignesh regarding pressure cooker i would say that cooking temp does not depend upon temp of flame....understand it like this.....water in an open container boils at 100 celsius at mean sea level how so ever hot the flame is....when inside cooker the same water will boil at more than 100 celsius due to pressure inside the cooker and not due to flame temp.....which will eventually cook the food....so it certainly cannot be temp of flame.....whereas weight of lid would contribute additional pressure apart from atmospheric pressure thus affecting the temp at which food is cooked.....my two cents
@babu_bisleri regarding sutlej river question....i think upsc wanted us to arrive at the answer by specifically asking three rives which pour into one....which can only be the case with chenab in which ravi jhelum and sutlej pour in....but if take sutlej....then only chenab pouring into it becomes the case as other rivers have already poured into chenab....so technically three rivers are not pouring into sutlej ......i have also marked sutlej but i think that would be wrong....
@babu_bisleri if you look at the question it has specifically been mentioned from amongst the options three river pour into one....so irrespective of which all river pour into which river, we have to limit ourselves to the one given in the options
@Tempo_High_Hain the extent of pressure rise inside the cooker depends upon the weight of the deadweight(siti)covering the hole, as soon as the required pressure is reached the excess pressure is released by lifting off of deadweight, so heavier the deadweight, more pressure inside cooker- more temperature at which food cooks.
now deadweight is exterting a downward force equal to its weight, to lift that weight we would need a counter force which would be provided by the pressure inside the cooker, however, pressure multiplied by area is equal to force which would eventually lift the deadweight. so pressure multiplied by area of hole equals counter force to lift the siti, which eventually maintains the pressure to a set level, which in turn decides the temperature at which food cooks.
@sathooriaravind I haven't also got a concrete answer as to how weight of lid matters.....however, i was sure that temp of flame does not matter and that eliminated the weight of lid option......
@drlokeshyadav761665 both will get cooked at same temperature (which has been asked by UPSC), however, their cooking time may vary (which has not been asked by UPSC)......understand the cooker question of special case of boiling water.....water always boils at 100 celsius at mean sea level in an open vessel....irrespective of temperature of flame...if you boil more water...it will take more time to boil,.....but will boil at 100 celsius only.....in case of cooker same principle applies but by artificially increasing the pressure inside cooker the same water now boils at may be 120 or 130 celsius.
@drlokeshyadav761665 flame temperature of single candle and flame temperature produced by lighting 100 candles will be same...if you want to cook food in cooker using candles try cooking by lighting 100 candles...i guess...the cooker would surely whistle
@Negan I totally second you......my metric for judging the difficulty level of prelims has been the immediate feeling after the exam.....for e.g. in 2018....i felt the paper was tough (scored 108).....however, in 2019, i found it easier than 2018 (scored 124), in 2020, the immediate feeling was that of it being the toughest paper upsc has thrown and i was shell shocked by the paper as i had set c which had agri questions in the beginning.....(scores don't know but qualified for IFoS mains, though score would be lesser than 2019)....in 2021, the immediate feeling was that the paper was easy....and i would score good,...however when checked answer keys and re-analysed the paper i felt that this time upsc has ambushed us, it set up a trap wherein the techniques did not work as they worked in previous attempts, this time scoring in the range of 95 to 98...my lowest ever scores in prelims.
@Vikileaks yeah something like that...could have given reference of some insiders and all
@Darvey78 lots of confusion is there...insiders are pinning messages on tg regarding result declaration then deleting them....then this new thing of calling UPSC...insiders then saying no info would be released now....this is all the bakar happening on tg
In for 5th consecutive prelims....for those who cleared many many congratulations.....those who could not .....lage rho....make a comeback...which is mightier, stronger and sharper....and for those whose upsc journey comes to a conclusion with this result....my deep respect....you have been warriors....we have learnt a lot from you....this is not the end,....better opportunities await for you in the future...you will definitely rise and shine and make yourself, your family members and friends proud
