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) μ sinθ/(2θ + sin 2θ) 4μ sinθ/(2θ + sin 2θ) 4μ sinθ/(θ + sinθ) 2μ sinθ/(θ + sinθ) μ sinθ/(2θ + sin 2θ) 4μ sinθ/(2θ + sin 2θ) 4μ sinθ/(θ + sinθ) ANSWER DOWNLOAD EXAMIANS APP
Machine Design Gears are casted by Slush casting Permanent mould casting Sand mould casting Centrifugal casting Slush casting Permanent mould casting Sand mould casting Centrifugal casting ANSWER DOWNLOAD EXAMIANS APP
Machine Design The centre distance between two meshing involute gears is equal to Difference of base circle radii/cosφ Sum of base circle radii/cosφ Sum of pitch circle radii/cosφ Difference of pitch circle radii/cosφ Difference of base circle radii/cosφ Sum of base circle radii/cosφ Sum of pitch circle radii/cosφ Difference of pitch circle radii/cosφ ANSWER DOWNLOAD EXAMIANS APP
Machine Design Factor of safety for fatigue loading is the ratio of Endurance limit to the working stress Elastic limit to the working stress Elastic limit to the yield point Young's modulus to the ultimate tensile strength Endurance limit to the working stress Elastic limit to the working stress Elastic limit to the yield point Young's modulus to the ultimate tensile strength ANSWER DOWNLOAD EXAMIANS APP
Machine Design When a material is subjected to fatigue loading, the ratio of the endurance limit to the ultimate tensile strength is 0.65 0.2 0.35 0.5 0.65 0.2 0.35 0.5 ANSWER DOWNLOAD EXAMIANS APP
Machine Design For standard coarse threads of nut, the threads will be as strong in failure by shear as the bolt in tension, if the height of nut (h) is approximately 0.7 times 0.8 times 0.6 times 0.4 times 0.7 times 0.8 times 0.6 times 0.4 times ANSWER DOWNLOAD EXAMIANS APP
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