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 Gear box is used To obtain variable speeds To produce torque For speed reduction To increase efficiency of system To obtain variable speeds To produce torque For speed reduction To increase efficiency of system ANSWER DOWNLOAD EXAMIANS APP
Machine Design A type of brake commonly used in motor cars is a Band brake Band and block brake Shoe brake Internal expanding brake Band brake Band and block brake Shoe brake Internal expanding brake ANSWER DOWNLOAD EXAMIANS APP
Machine Design A screw is said to be over hauling screw, if the Friction angle is less than helix angle Efficiency of screw is 100% Friction angle is equal to helix angle Friction angle is more than helix angle Friction angle is less than helix angle Efficiency of screw is 100% Friction angle is equal to helix angle Friction angle is more than helix angle ANSWER DOWNLOAD EXAMIANS APP
Machine Design Stress concentration factor is defined as the ratio of Nominal stress to the endurance limit Nominal stress to the maximum stress Maximum stress to the endurance limit Maximum stress to the nominal stress Nominal stress to the endurance limit Nominal stress to the maximum stress Maximum stress to the endurance limit Maximum stress to the nominal stress ANSWER DOWNLOAD EXAMIANS APP
Machine Design In helical bevel gearing, the axes of shafts are __________ and the teeth are curved. Non-intersecting and non-parallel Intersecting None of these Intersecting and non-parallel Non-intersecting and non-parallel Intersecting None of these Intersecting and non-parallel ANSWER DOWNLOAD EXAMIANS APP
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