Machine Design The difference between the upper limit and lower limit of a dimension is called Nominal size Actual size Tolerance Basic size Nominal size Actual size Tolerance Basic size ANSWER DOWNLOAD EXAMIANS APP
Machine Design A shaft is subjected to a maximum bending stress of 80 N/mm² and maximum shearing stress equal to 30 N/mm² at a particular section. If the yield point in tension of the material is 280 N/mm² and the maximum shear stress theory of failure is used, then the factor of safety obtained will be 3.5 3 2.8 2.5 3.5 3 2.8 2.5 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 (Kf + 1)/ (Kt + 1) (Kf - 1)/ (Kt - 1) (Kt - 1)/ (Kf - 1) (Kt + 1)/ (Kf + 1) (Kf + 1)/ (Kt + 1) (Kf - 1)/ (Kt - 1) (Kt - 1)/ (Kf - 1) (Kt + 1)/ (Kf + 1) ANSWER DOWNLOAD EXAMIANS APP
Machine Design Two rigid plates are clamped by means of bolt and nut with an initial force F. After tightening, a separating force P (P < F) is applied to the lower plate, which in turn acts on the nut. The tension in the both after this is F.P F P F + P F.P F P F + P ANSWER DOWNLOAD EXAMIANS APP
Machine Design A sliding bearing which operates without any lubricant present, is called Zero film bearing Boundary lubricated bearing Hydrostatic lubricated bearing Hydrodynamic lubricated bearing Zero film bearing Boundary lubricated bearing Hydrostatic lubricated bearing Hydrodynamic lubricated bearing ANSWER DOWNLOAD EXAMIANS APP
Machine Design A closely coiled helical spring is acted upon by an axial force. The maximum shear stress developed in the spring is τ. The half of the length of the spring if cut off and the remaining spring is acted upon by the same axial force. The maximum shear stress in the spring in new condition will be 2 τ 4 τ τ τ/2 2 τ 4 τ τ τ/2 ANSWER DOWNLOAD EXAMIANS APP
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