Machine Design For a shoe brake, the equivalent coefficient of friction is equal to (where μ = Actual coefficient of friction, and θ = Semi-block angle) 2μ sinθ/(θ + sinθ) 4μ sinθ/(2θ + sin 2θ) μ sinθ/(2θ + sin 2θ) 4μ sinθ/(θ + sinθ) 2μ sinθ/(θ + sinθ) 4μ sinθ/(2θ + sin 2θ) μ sinθ/(2θ + sin 2θ) 4μ sinθ/(θ + sinθ) ANSWER DOWNLOAD EXAMIANS APP
Machine Design Screws used for power transmission should have Strong teeth Low efficiency High efficiency Very fine threads Strong teeth Low efficiency High efficiency Very fine threads ANSWER DOWNLOAD EXAMIANS APP
Machine Design According to I.B.R., the factor of safety of riveted joint should not be less than 4 1 3 2 4 1 3 2 ANSWER DOWNLOAD EXAMIANS APP
Machine Design In radial cams, the follower moves In a direction parallel to the cam axis In any direction irrespective of cam axis Along the cam axis In a direction perpendicular to the cam axis In a direction parallel to the cam axis In any direction irrespective of cam axis Along the cam axis In a direction perpendicular to the cam axis ANSWER DOWNLOAD EXAMIANS APP
Machine Design When the bolt is very yielding as compared to the connected members, then the resultant load on the bolt will be equal to the Initial tension or external load, whichever is greater Sum of the initial tension and external load applied Initial tension External load applied Initial tension or external load, whichever is greater Sum of the initial tension and external load applied Initial tension External load applied ANSWER DOWNLOAD EXAMIANS APP
Machine Design In case of thick cylinders, the tangential stress across the thickness of cylinder is Maximum at the outer surface and zero at the inner surface Maximum at the outer surface and minimum at the inner surface Maximum at the inner surface and zero at the outer surface Maximum at the inner surface and minimum at the outer surface Maximum at the outer surface and zero at the inner surface Maximum at the outer surface and minimum at the inner surface Maximum at the inner surface and zero at the outer surface Maximum at the inner surface and minimum at the outer surface ANSWER DOWNLOAD EXAMIANS APP
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