Machine Design Screws used for power transmission should have Very fine threads Strong teeth High efficiency Low efficiency Very fine threads Strong teeth High efficiency Low efficiency ANSWER DOWNLOAD EXAMIANS APP
Machine Design If shearing stress in nut is half the tensile stress in a bolt, then nut length should be equal to 0.75 × diameter of bolt 1.25 × diameter of bolt Diameter of bolt 1.5 × diameter of bolt 0.75 × diameter of bolt 1.25 × diameter of bolt Diameter of bolt 1.5 × diameter of bolt ANSWER DOWNLOAD EXAMIANS APP
Machine Design Idler pulley is used for All of these Increasing velocity ratio Changing the direction of motion of belt For applying tension All of these Increasing velocity ratio Changing the direction of motion of belt For applying tension ANSWER DOWNLOAD EXAMIANS APP
Machine Design According to I.B.R., the efficiency of a double riveted butt joint with double cover straps of equal width should be 63 to 70% 45 to 60% 80 to 90% 70 to 83% 63 to 70% 45 to 60% 80 to 90% 70 to 83% ANSWER DOWNLOAD EXAMIANS APP
Machine Design The cracks in helical springs used in railway carriages usually start on the inner side of the coil because of the fact that It is subjected to a higher cyclic loading than the outer side It has a lower curvature than the outer side It is more stretched than the outer side during the manufacturing process It is subjected to a higher stress than the outer side It is subjected to a higher cyclic loading than the outer side It has a lower curvature than the outer side It is more stretched than the outer side during the manufacturing process It is subjected to a higher stress than the outer side ANSWER DOWNLOAD EXAMIANS APP
Machine Design The notch sensitivity q is expressed in terms of fatigue stress concentration factor Kf and theoretical stress concentration factor Kt as (Kt + 1)/ (Kf + 1) (Kt - 1)/ (Kf - 1) (Kf - 1)/ (Kt - 1) (Kf + 1)/ (Kt + 1) (Kt + 1)/ (Kf + 1) (Kt - 1)/ (Kf - 1) (Kf - 1)/ (Kt - 1) (Kf + 1)/ (Kt + 1) ANSWER DOWNLOAD EXAMIANS APP
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