Machine Design Applications in which stresses are encountered in one direction only uses following type of threads Acme Metric Buttress Square Acme Metric Buttress Square ANSWER DOWNLOAD EXAMIANS APP
Machine Design The condition for maximum power transmission is that the maximum tension in the flat belt should be equal to (Where, Pc = tension in belt due to centrifugal force) 3 Pc 2 Pc Pc/3 1 Pc 3 Pc 2 Pc Pc/3 1 Pc ANSWER DOWNLOAD EXAMIANS APP
Machine Design The ratio of belt tensions (p1/p2) considering centrifugal force in flat belt is given by Where m = mass of belt per meter (kg/m) v = belt velocity (m/s) f = coefficient of friction a = angle of wrap (radians) P1 / P2 = eᶠα (P1 - mv²)/ (P2 - mv²) = e–ᶠα (P1 - mv²)/ (P2 - mv²) = eᶠα P1 / P2 = e–ᶠα P1 / P2 = eᶠα (P1 - mv²)/ (P2 - mv²) = e–ᶠα (P1 - mv²)/ (P2 - mv²) = eᶠα P1 / P2 = e–ᶠα ANSWER DOWNLOAD EXAMIANS APP
Machine Design The ratio of driving tensions for flat belts, neglecting centrifugal tension, is (where T₁, and T₂ = Tensions on the tight and slack sides of belt respectively, μ = Coefficient of friction, between the belt and pulley, and θ = Angle of contact) log (T₁/T₂) = μθ T₁/T₂ = log μθ T₁/T₂ = μθ T₁/T₂ =eμθ log (T₁/T₂) = μθ T₁/T₂ = log μθ T₁/T₂ = μθ T₁/T₂ =eμθ ANSWER DOWNLOAD EXAMIANS APP
Machine Design Oldham coupling is used to connect two shafts Which are not in exact alignment Which have lateral misalignment Whose axes intersect at a small angle Which are perfectly aligned Which are not in exact alignment Which have lateral misalignment Whose axes intersect at a small angle Which are perfectly aligned ANSWER DOWNLOAD EXAMIANS APP
Machine Design In order to determine the stresses in a thin cylinder due to an internal pressure, it is assumed that The effect of the restraining action of the heads at the end of the pressure vessel is neglected The effect of curvature of the cylinder wall is neglected All of these The tensile stresses are uniformly distributed over the section of the walls The effect of the restraining action of the heads at the end of the pressure vessel is neglected The effect of curvature of the cylinder wall is neglected All of these The tensile stresses are uniformly distributed over the section of the walls ANSWER DOWNLOAD EXAMIANS APP
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