PTU SOM II 5 marks Question Answers Compare the strains produced in a body subjected to same amount of load when applied gradually and suddenly. ANS: Let ‘P’ be the gradually applied load and ‘a’ is the area of cross section of the body. Then stress = P/A When same load is applied suddenly, its […]
PTU SOM II 2 marks Question Answers Q. What is the energy of distortion or shear strain energy? ANS: Every object in universe is under a number of forces. Thus it is under complex loading. From the complex loading, one can determine the three principal stresses σ1, σ2 and σ3 respectively. ASSUME (i) these […]
SOLUTION OF SOM PTU PAPER DEC 2014 SOLUTION Q1. (a).What is Factor of safety? For Ductile materials FOS = σyp /σall For Brittle Materials FOS = σult /σall σyp = yield point stress, it is possible only for ductile materials and its value is very near to the value of […]
SOLUTION OF SOM PTU PAPER, MAY 2014 SOLUTION Q1 (a). What is slenderness ratio? State the limitations of Euler’s formula. ANS: slenderness ratio = k = Le/kmin Where Le is the effective length kmin is the minimum radius of gyration Le = L for both ends hinged column Le =2 L for a cantilever column […]