Machine Design When a closely coiled helical spring is subjected to a couple about its axis, the stress induced in the wire material of the spring is A combination of bending stress and direct shear stress A combination of torsional shear stress and bending Direct shear stress only Bending stress only A combination of bending stress and direct shear stress A combination of torsional shear stress and bending Direct shear stress only Bending stress only ANSWER DOWNLOAD EXAMIANS APP
Machine Design Three different weights fall from a certain height under vacuum. They will take Same time to reach earth Times inversely proportional to weight to reach earth Times proportional to weight to reach earth None of these Same time to reach earth Times inversely proportional to weight to reach earth Times proportional to weight to reach earth None of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design The condition for maximum power transmission is that the maximum tension in the flat belt should be equal to (Where, Pc = tension in belt due to centrifugal force) 2 Pc Pc/3 1 Pc 3 Pc 2 Pc Pc/3 1 Pc 3 Pc ANSWER DOWNLOAD EXAMIANS APP
Machine Design A screw is said to be a self locking screw, if its efficiency is Less than 50% None of these More than 50% Equal to 50% Less than 50% None of these More than 50% Equal to 50% ANSWER DOWNLOAD EXAMIANS APP
Machine Design If a spring is cut down into two springs, the stiffness of cut springs will be None of these Double Same Half None of these Double Same Half ANSWER DOWNLOAD EXAMIANS APP
Machine Design The shock absorbing capacity of a bolt may be increased by Tightening the bolt properly Making the shank diameter equal to core diameter of thread Decreasing its shank diameter Increasing its shank diameter Tightening the bolt properly Making the shank diameter equal to core diameter of thread Decreasing its shank diameter Increasing its shank diameter ANSWER DOWNLOAD EXAMIANS APP
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