Machine Design Two shafts ‘A’ and ‘B’ under pure torsion are of identical length and identical weight and are made of the same material. The shaft ‘A’ is solid and the shaft ‘B’ is hollow. We can say that Shaft A is better than shaft B Both the shafts are equally good None of these Shaft B is better than shaft A Shaft A is better than shaft B Both the shafts are equally good None of these Shaft B is better than shaft A ANSWER DOWNLOAD EXAMIANS APP
Machine Design The shock absorbing capacity of a bolt can be increased by Tightening it properly Increasing shank diameter Making shank diameter equal to core diameter of thread Grinding the shank Tightening it properly Increasing shank diameter Making shank diameter equal to core diameter of thread Grinding the shank ANSWER DOWNLOAD EXAMIANS APP
Machine Design A sliding bearing which operates without any lubricant present, is called Boundary lubricated bearing Hydrostatic lubricated bearing Hydrodynamic lubricated bearing Zero film bearing Boundary lubricated bearing Hydrostatic lubricated bearing Hydrodynamic lubricated bearing Zero film bearing 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/ 4D3n Gd⁴/ 8D3n Gd⁴/ 8D²n Gd3/ 8D3n Gd⁴/ 4D3n Gd⁴/ 8D3n Gd⁴/ 8D²n Gd3/ 8D3n ANSWER DOWNLOAD EXAMIANS APP
Machine Design The suitable material for belt in agricultural machinery is Rubber Cotton duck Leather Balata gum Rubber Cotton duck Leather Balata gum ANSWER DOWNLOAD EXAMIANS APP
Machine Design In hydrodynamic bearings The oil film pressure is generated only by the rotation of the journal Grease is used for lubrication The oil film is maintained by supplying oil under pressure Do not require external supply of lubricant The oil film pressure is generated only by the rotation of the journal Grease is used for lubrication The oil film is maintained by supplying oil under pressure Do not require external supply of lubricant ANSWER DOWNLOAD EXAMIANS APP
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