Machine Design The resultant axial load on a bolt depends on External load applied Initial tension Relative elastic yielding (springness) of the bolt and the connected member All of these External load applied Initial tension Relative elastic yielding (springness) of the bolt and the connected member All of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design When a nut is tightened by placing a washer below it, the bolt will be subjected to following type of loads Tension Combined loads Compression Shear Tension Combined loads Compression Shear ANSWER DOWNLOAD EXAMIANS APP
Machine Design The shock absorbing capacity of a bolt may be increased by Decreasing its shank diameter Increasing its shank diameter Making the shank diameter equal to core diameter of thread Tightening the bolt properly Decreasing its shank diameter Increasing its shank diameter Making the shank diameter equal to core diameter of thread Tightening the bolt properly ANSWER DOWNLOAD EXAMIANS APP
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) 4μ sinθ/(θ + sinθ) μ sinθ/(2θ + sin 2θ) 2μ sinθ/(θ + sinθ) 4μ sinθ/(2θ + sin 2θ) 4μ sinθ/(θ + sinθ) μ sinθ/(2θ + sin 2θ) 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 1.5 × diameter of bolt 1.25 × diameter of bolt 0.75 × diameter of bolt Diameter of bolt 1.5 × diameter of bolt 1.25 × diameter of bolt 0.75 × diameter of bolt Diameter of bolt ANSWER DOWNLOAD EXAMIANS APP
Machine Design The ratio of belt tensions (p1/p2) considering centrifugal force in flat belt is given byWhere m = mass of belt per meter (kg/m)v = belt velocity (m/s)f = coefficient of frictiona = angle of wrap (radians) P1 / P2 = eᶠα P1 / P2 = e–ᶠα (P1 - mv²)/ (P2 - mv²) = e–ᶠα (P1 - mv²)/ (P2 - mv²) = eᶠα P1 / P2 = eᶠα P1 / P2 = e–ᶠα (P1 - mv²)/ (P2 - mv²) = e–ᶠα (P1 - mv²)/ (P2 - mv²) = eᶠα ANSWER DOWNLOAD EXAMIANS APP
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