Machine Design Residual stress in materials Acts when external load is applied Is independent of external loads Is always harmful Becomes zero when external load is removed Acts when external load is applied Is independent of external loads Is always harmful Becomes zero when external load is removed ANSWER DOWNLOAD EXAMIANS APP
Machine Design If d is the normal diameter of a bolt in mm, then the initial tension in kg in a bolt used for making a fluid tight joint as for steam engine cover joint is calculated by the relation 151 d 168 d 138 d 124 d 151 d 168 d 138 d 124 d ANSWER DOWNLOAD EXAMIANS APP
Machine Design Slenderness ratio is the ratio of Effective length of column to width of column Effective length of column to least radius of gyration of the column Maximum size of column to minimum size of column Width of column to depth of column Effective length of column to width of column Effective length of column to least radius of gyration of the column Maximum size of column to minimum size of column Width of column to depth of column ANSWER DOWNLOAD EXAMIANS APP
Machine Design The strength of the unriveted plate (P) per pitch length is equal to p.d.σt p.t.σt (p - d) t.σt (p - d) σt p.d.σt p.t.σt (p - d) t.σt (p - d) σt ANSWER DOWNLOAD EXAMIANS APP
Machine Design The circumferential and longitudinal strains in a cylindrical boiler under internal steam pressure are εc and εl respectively. The change in volume of the boiler cylinder per unit volume will be εc + εl² εc + 2εl εc² + εl 2εc + εl εc + εl² εc + 2εl εc² + εl 2εc + εl ANSWER DOWNLOAD EXAMIANS APP
Machine Design In hydrodynamic bearings Do not require external supply of lubricant The oil film is maintained by supplying oil under pressure The oil film pressure is generated only by the rotation of the journal Grease is used for lubrication Do not require external supply of lubricant The oil film is maintained by supplying oil under pressure The oil film pressure is generated only by the rotation of the journal Grease is used for lubrication ANSWER DOWNLOAD EXAMIANS APP
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