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
Machine Design A locking device extensively used in automobile industry is a Ring nut Sawn nut Castle nut Jam nut Ring nut Sawn nut Castle nut Jam nut ANSWER DOWNLOAD EXAMIANS APP
Machine Design Which of the following statement is correct, for two shafts connected in parallel? Torsional stiffness of each shaft is the same Angle of twist of each shaft is the same Shear stress in each shaft is the same Torque in each shaft is the same Torsional stiffness of each shaft is the same Angle of twist of each shaft is the same Shear stress in each shaft is the same Torque in each shaft is the same ANSWER DOWNLOAD EXAMIANS APP
Machine Design In order to ensure self locking in a screw jack, it is essential that helix angle is __________ friction angle. Smaller than Equal to Larger than None of these Smaller than Equal to Larger than None of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design A screw will be self locking, if Friction angle is less than helix angle Friction angle is equal to helix angle Friction angle is more than helix angle Efficiency of screw is 100% Friction angle is less than helix angle Friction angle is equal to helix angle Friction angle is more than helix angle Efficiency of screw is 100% ANSWER DOWNLOAD EXAMIANS APP
Machine Design Spring stiffness is Ratio of coil diameter to wire diameter Its capability of storing energy Load required to produce unit deflection Its ability to absorb shocks Ratio of coil diameter to wire diameter Its capability of storing energy Load required to produce unit deflection Its ability to absorb shocks ANSWER DOWNLOAD EXAMIANS APP
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