Machine Design Two closely coiled helical springs with stiffness k₁ and k₂ respectively are connected in series. The stiffness of an equivalent spring is given by (k₁ - k₂)/ (k₁ k₂) (k₁ - k₂)/ (k₁ + k₂) (k₁ k₂)/ (k₁ + k₂) (k₁ + k₂)/ (k₁ k₂) (k₁ - k₂)/ (k₁ k₂) (k₁ - k₂)/ (k₁ + k₂) (k₁ k₂)/ (k₁ + k₂) (k₁ + k₂)/ (k₁ k₂) ANSWER DOWNLOAD EXAMIANS APP
Machine Design Tensile strength of a mild steel specimen can be roughly predicted from following hardness test Rockwell Brinell None of these Vickers Rockwell Brinell None of these Vickers ANSWER DOWNLOAD EXAMIANS APP
Machine Design In second type of levers, None of these Effort is in between the fulcrum and load Fulcrum is in between the load and effort Load is in between the fulcrum and effort None of these Effort is in between the fulcrum and load Fulcrum is in between the load and effort Load is in between the fulcrum and effort ANSWER DOWNLOAD EXAMIANS APP
Machine Design The lead angle of a worm is 22.5°. Its helix angle will be 45° 67.5° 90° 22.5° 45° 67.5° 90° 22.5° ANSWER DOWNLOAD EXAMIANS APP
Machine Design A special case of ductility which permits materials to be rolled or hammered into thin sheets, is called Ductility Malleability Plasticity Elasticity Ductility Malleability Plasticity Elasticity 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) 3 Pc Pc/3 1 Pc 2 Pc 3 Pc Pc/3 1 Pc 2 Pc ANSWER DOWNLOAD EXAMIANS APP
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