Q .1 A shaft is required to transmit a power of 25 kW at 360 r.p.m. The force analysis due to attached parts results in B.M. of 830 N-m at a section between bearings. If permissible stresses in the shaft are -60 N/mm in bending and 40 N/mm? in shear calculate the diameter of the shaft. (R.G.P.V., June 2016)
मरीचिका क्या है
Garmi ke Dinon Mein Jab Tej garmi padati hai to Prithvi ka dharatal garm ho jata hai aur Hawa Ki parte Bhi garm Ho Jaati Hai. garm hone par Hawa ki Parto ka apvartanank kam ho jata hai. atah Prithvi Tal Se Jaise Upar ki Aur Jaate Hain Hawa ki parto ka apvartanank badhta Jata Hai Jab Kisi ped se prakash ki kirne niche ki or aati hai to saghan se wirral Madhyam Mein Jaane Ke Kaaran uttrottar abhilambh Se Dur hatti jaati hai aur Prithvi ke nikat Aaptan kaun ka man Krantik kaun se Adhik Ho Jaane Ke Karan purn aantrik pravartan ho jata hai aur prekshak Ko ye kirne Prithvi ke prashat Ke Niche Se Aati Hui is Prakar Maloom padati Hai jaise ki vahan Talab ya pokhar se pravartit kirne pahunch rahi ho is Prakar vah Jal hone ki Braham ki stithitl Ho Jaati Hai ise Marichika Kahate Hain.
Very Good