Machine Design In cyclic loading, stress concentration is more serious in Elastic materials Ductile materials Brittle materials Brittle as well as ductile materials Elastic materials Ductile materials Brittle materials Brittle as well as ductile materials ANSWER DOWNLOAD EXAMIANS APP
Machine Design The cracks in helical springs used in railway carriages usually start on the inner side of the coil because of the fact that It is subjected to a higher cyclic loading than the outer side It has a lower curvature than the outer side It is subjected to a higher stress than the outer side It is more stretched than the outer side during the manufacturing process It is subjected to a higher cyclic loading than the outer side It has a lower curvature than the outer side It is subjected to a higher stress than the outer side It is more stretched than the outer side during the manufacturing process ANSWER DOWNLOAD EXAMIANS APP
Machine Design The shearing stresses in the inner face as compared to outer face of the wire in a heavy close coiled spring is Smaller Equal Larger Larger/smaller depending on diameter of spring coil Smaller Equal Larger Larger/smaller depending on diameter of spring coil ANSWER DOWNLOAD EXAMIANS APP
Machine Design In order to avoid tearing of the plate at edge, the distance from the center line of the rivet hole to the nearest edge of the plate in terms of dia. of rivet d should be equal to 1.25 d 1 d 1.5 d 1.75 d 1.25 d 1 d 1.5 d 1.75 d ANSWER DOWNLOAD EXAMIANS APP
Machine Design In case of thick cylinders, the tangential stress across the thickness of cylinder is Maximum at the outer surface and zero at the inner surface Maximum at the inner surface and zero at the outer surface Maximum at the outer surface and minimum at the inner surface Maximum at the inner surface and minimum at the outer surface Maximum at the outer surface and zero at the inner surface Maximum at the inner surface and zero at the outer surface Maximum at the outer surface and minimum at the inner surface Maximum at the inner surface and minimum at the outer surface ANSWER DOWNLOAD EXAMIANS APP
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) Gd⁴/ 8D3n Gd⁴/ 4D3n Gd⁴/ 8D²n Gd3/ 8D3n Gd⁴/ 8D3n Gd⁴/ 4D3n Gd⁴/ 8D²n Gd3/ 8D3n ANSWER DOWNLOAD EXAMIANS APP
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