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 Gd3/ 8D3n Gd⁴/ 8D²n Gd⁴/ 8D3n Gd⁴/ 4D3n Gd3/ 8D3n Gd⁴/ 8D²n Gd⁴/ 8D3n ANSWER DOWNLOAD EXAMIANS APP
Machine Design Cast iron pipes are mainly used In pressure lubrication systems on prime movers In water and sewage systems All of these For conveying steam In pressure lubrication systems on prime movers In water and sewage systems All of these For conveying steam ANSWER DOWNLOAD EXAMIANS APP
Machine Design When compared to the rod of the same diameter and material, a wire rope Is less flexible Does not provide much warning before failure Has a much smaller load carrying capacity Provides much greater time for remedial action before failure Is less flexible Does not provide much warning before failure Has a much smaller load carrying capacity Provides much greater time for remedial action before failure ANSWER DOWNLOAD EXAMIANS APP
Machine Design A screw is said to be over hauling screw, if its efficiency is None of these Less than 50% Equal to 50% More than 50% None of these Less than 50% Equal to 50% More than 50% ANSWER DOWNLOAD EXAMIANS APP
Machine Design Which of the following bearing is preferred for oscillating conditions? Angular contact single row ball bearing Needle roller bearing Taper roller bearing Double row roller bearing Angular contact single row ball bearing Needle roller bearing Taper roller bearing Double row roller bearing ANSWER DOWNLOAD EXAMIANS APP
Machine Design The edges of a boiler plate are bevelled to an angle of 80° 60° 30° 45° 80° 60° 30° 45° ANSWER DOWNLOAD EXAMIANS APP
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