Machine Design The efficiency of a square threaded screw is maximum if the helix angle is equal to(Where φ = Angle of friction) 45° + φ/2 45° - φ 45° - φ/2 90° - φ 45° + φ/2 45° - φ 45° - φ/2 90° - φ ANSWER DOWNLOAD EXAMIANS APP
Machine Design The property of a bearing material which has the ability to accommodate small particles of dust, grit etc. without scoring the material of the journal, is called Comformability Fatigue strength Embeddability Bondability Comformability Fatigue strength Embeddability Bondability ANSWER DOWNLOAD EXAMIANS APP
Machine Design The product of the diametral pitch and circular pitch is equal to 1/π π 1 π × number of teeth 1/π π 1 π × number of teeth ANSWER DOWNLOAD EXAMIANS APP
Machine Design Shear stress theory is applicable for Ductile materials All of these Elastic materials Brittle materials Ductile materials All of these Elastic materials Brittle materials ANSWER DOWNLOAD EXAMIANS APP
Machine Design Slenderness ratio is the ratio of 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 Effective length of column to width of column ANSWER DOWNLOAD EXAMIANS APP
Machine Design According to I.B.R., shearing resistance required to shear off the rivet per pitch length (in double shear) is (where n = Number of rivets per pitch length) (π/4) d² × τ × n 2 × (π/4) d² × τ × n 3 × (π/4) d² × τ × n 1.875 × (π/4) d² × τ × n (π/4) d² × τ × n 2 × (π/4) d² × τ × n 3 × (π/4) d² × τ × n 1.875 × (π/4) d² × τ × n ANSWER DOWNLOAD EXAMIANS APP
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