Machine Design The velocity factor for precision metallic gears cut with high accuracy and operating at velocities up to 20 m/s is equal to 6/ (6 + v) 4.5/ (4.5 + v) 3/ (3 + v) 0.75/ (0.75 + √v) 6/ (6 + v) 4.5/ (4.5 + v) 3/ (3 + v) 0.75/ (0.75 + √v) ANSWER DOWNLOAD EXAMIANS APP
Machine Design According to I.B.R., the thickness of the boiler shell should not be less than 5 mm 6 mm 7 mm 4 mm 5 mm 6 mm 7 mm 4 mm ANSWER DOWNLOAD EXAMIANS APP
Machine Design While designing a screw in a screw jack against buckling failure, the end conditions for the screw are taken as One end fixed and the other end hinged Both the ends hinged Both the ends fixed One end fixed and the other end free One end fixed and the other end hinged Both the ends hinged Both the ends fixed One end fixed and the other end free ANSWER DOWNLOAD EXAMIANS APP
Machine Design The efficiency of a riveted joint is equal to Ps /P Pt /P Pc /P Least of Pt, Ps and Pc/P Ps /P Pt /P Pc /P Least of Pt, Ps and Pc/P ANSWER DOWNLOAD EXAMIANS APP
Machine Design A plate with an elliptical hole in the centre, with semi-major axis (a) perpendicular to the direction of loading and semi-minor axis (b) along the direction of loading, is subjected to a pull P. The maximum stress induced at the edge of the hole is equal to (where σ = Stress for a plate with no hole i.e. nominal stress) σ [1 + (b/2a)] σ [1 + (3a/b)] σ [1 + (b/3a)] σ [1 + (2a/b)] σ [1 + (b/2a)] σ [1 + (3a/b)] σ [1 + (b/3a)] σ [1 + (2a/b)] ANSWER DOWNLOAD EXAMIANS APP
Machine Design A rivet is specified by Type of head Length of tail Shank diameter Length of rivet Type of head Length of tail Shank diameter Length of rivet ANSWER DOWNLOAD EXAMIANS APP
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