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/ 8D3n Gd⁴/ 8D²n Gd⁴/ 4D3n Gd3/ 8D3n Gd⁴/ 8D3n Gd⁴/ 8D²n Gd⁴/ 4D3n ANSWER DOWNLOAD EXAMIANS APP
Machine Design A key made from a cylindrical disc having segmental cross-section, is known as Flat saddle key Feather key Gib head key Woodruff key Flat saddle key Feather key Gib head key Woodruff key ANSWER DOWNLOAD EXAMIANS APP
Machine Design When a belt drive is transmitting maximum power, Driving tension on slack side is equal to centrifugal tension Effective tension is half of centrifugal tension Effective tension is equal to centrifugal tension Driving tension on tight side is twice the centrifugal tension Driving tension on slack side is equal to centrifugal tension Effective tension is half of centrifugal tension Effective tension is equal to centrifugal tension Driving tension on tight side is twice the centrifugal tension ANSWER DOWNLOAD EXAMIANS APP
Machine Design Two helical springs of the same material and of equal circular cross-section, length and number of turns, but having radii 80 mm and 40 mm, kept concentrically (smaller radius spring within the larger radius spring), are compressed between two parallel planes with a load W. The inner spring will carry a load equal to 8W/9 W/9 2W/3 W/2 8W/9 W/9 2W/3 W/2 ANSWER DOWNLOAD EXAMIANS APP
Machine Design In the case of an elastic bar fixed at upper end and loaded by a falling weight at lower end, the shock load produced can be decreased by Would depend upon other factors Increasing the cross-section area of bar Remain unaffected with cross-section area Decreasing the cross-section area of bar Would depend upon other factors Increasing the cross-section area of bar Remain unaffected with cross-section area Decreasing the cross-section area of bar ANSWER DOWNLOAD EXAMIANS APP
Machine Design In Vickers hardness testing, the pyramid indentor apex is 122° 136° 152° 40° 122° 136° 152° 40° ANSWER DOWNLOAD EXAMIANS APP
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