Machine Design The stiffness of a closely coiled helical spring subjected to an axial load W is equal to (where G = Modulus of rigidity, and n = Number of active coils) Gd3/ 8D3n Gd⁴/ 4D3n Gd⁴/ 8D3n Gd⁴/ 8D²n Gd3/ 8D3n Gd⁴/ 4D3n Gd⁴/ 8D3n Gd⁴/ 8D²n ANSWER DOWNLOAD EXAMIANS APP
Machine Design All stresses produced in a belt are Shear stresses Both tensile and compressive stresses Tensile stresses Compressive stresses Shear stresses Both tensile and compressive stresses Tensile stresses Compressive stresses ANSWER DOWNLOAD EXAMIANS APP
Machine Design A universal coupling is used to connect two shafts Whose axes intersect at a small angle Have lateral misalignment Which are not in exact alignment Which are perfectly aligned Whose axes intersect at a small angle Have lateral misalignment Which are not in exact alignment Which are perfectly aligned ANSWER DOWNLOAD EXAMIANS APP
Machine Design For hardening alloy steels and high speed steels, they are heated to 1100 to 1300°C 500 to 600°C 1300 to 1500°C 700 to 900°C 1100 to 1300°C 500 to 600°C 1300 to 1500°C 700 to 900°C ANSWER DOWNLOAD EXAMIANS APP
Machine Design The square threads are usually found on Feed mechanism of machine tools Screw cutting lathes Spindles of bench vices Railway carriage couplings Feed mechanism of machine tools Screw cutting lathes Spindles of bench vices Railway carriage couplings ANSWER DOWNLOAD EXAMIANS APP
Machine Design The efficiency of a riveted joint is equal to Ps /P Pc /P Pt /P Least of Pt, Ps and Pc/P Ps /P Pc /P Pt /P Least of Pt, Ps and Pc/P ANSWER DOWNLOAD EXAMIANS APP
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