Machine Design According to Indian standard specifications, plain carbon steel designated by 40C8 contains carbon 0.20 to 0.40% None of these 0.40 to 0.60% 0.35 to 0.45% 0.20 to 0.40% None of these 0.40 to 0.60% 0.35 to 0.45% ANSWER DOWNLOAD EXAMIANS APP
Machine Design A closely coiled helical spring is acted upon by an axial force. The maximum shear stress developed in the spring is τ. The half of the length of the spring if cut off and the remaining spring is acted upon by the same axial force. The maximum shear stress in the spring in new condition will be τ/2 2 τ 4 τ τ τ/2 2 τ 4 τ τ ANSWER DOWNLOAD EXAMIANS APP
Machine Design If two springs are in parallel then their overall stiffness will be Half Same None of these Double Half Same None of these Double ANSWER DOWNLOAD EXAMIANS APP
Machine Design For a square key made of mild steel, the shear and crushing strength are related as None of these Shear strength is less than crushing strength Shear strength is equal to crushing strength Shear strength is greater than crushing strength None of these Shear strength is less than crushing strength Shear strength is equal to crushing strength Shear strength is greater than crushing strength ANSWER DOWNLOAD EXAMIANS APP
Machine Design Wire ropes as compared to cotton ropes Can withstand shock loads Are lighter in weight Offer silent operation All of these Can withstand shock loads Are lighter in weight Offer silent operation All of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design The plasticity is the property of a material which enables it to Regain its original shape after deformation when the external forces are removed Retain deformation produced under load permanently Resist fracture due to high impact loads Draw into wires by the application of a tensile force Regain its original shape after deformation when the external forces are removed Retain deformation produced under load permanently Resist fracture due to high impact loads Draw into wires by the application of a tensile force ANSWER DOWNLOAD EXAMIANS APP