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Mechanical Engineering Steam Boilers, Engines, Nozzles And Turbines Difficulty: Medium

When a bolt is subjected to an external load, the stress induced in the bolt will be Which of the following is a case of steady state heat transfer? A compound pipe of diameter d 1 , d 2 and d 3 having lengths $${l_1},\,{l_2}$$ and $${l_3}$$ is to be replaced by an equivalent pipe of uniform diameter d and of the same length $$l$$ as that of the compound pipe. The size of the equivalent pipe is given by The ratio of root mean square velocity to average velocity of gas molecules at a particular temperature is The capacity of a material to be welded under the imposed fabrication conditions into a specific, suitably designed structure and to perform satisfactorily in the intended service is known as?