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/ 8D²n Gd⁴/ 8D3n Gd3/ 8D3n Gd⁴/ 4D3n Gd⁴/ 8D²n Gd⁴/ 8D3n Gd3/ 8D3n Gd⁴/ 4D3n ANSWER DOWNLOAD EXAMIANS APP
Machine Design The load cup of a screw jack is made separate from the head of the spindle to Enhance the load carrying capacity of the jack Reduce the effort needed for lifting the working load Prevent the rotation of load being lifted Reduce the value of frictional torque Enhance the load carrying capacity of the jack Reduce the effort needed for lifting the working load Prevent the rotation of load being lifted Reduce the value of frictional torque ANSWER DOWNLOAD EXAMIANS APP
Machine Design Form coefficient of spring is Ratio of coil diameter to wire diameter Its capability of storing energy Load required to produce unit deflection Concerned with strength of wire of spring Ratio of coil diameter to wire diameter Its capability of storing energy Load required to produce unit deflection Concerned with strength of wire of spring ANSWER DOWNLOAD EXAMIANS APP
Machine Design In the assembly of pulley, key and shaft Key is made the weakest Key is made the strongest Pulley is made the weakest All the three are designed for equal strength Key is made the weakest Key is made the strongest Pulley is made the weakest All the three are designed for equal strength ANSWER DOWNLOAD EXAMIANS APP
Machine Design If an application calls for stresses on screw threads in one direction only, then the following type of thread would be best suited Square Buttress BSW Acme Square Buttress BSW Acme ANSWER DOWNLOAD EXAMIANS APP
Machine Design Lewis equation in gears is used to find the Compressive stress in bending Shear stress Fatigue stress Tensile stress in bending Compressive stress in bending Shear stress Fatigue stress Tensile stress in bending ANSWER DOWNLOAD EXAMIANS APP
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