Machine Design Auto frettage is the method of Pre-stressing thick cylinders Calculating stresses in thick cylinders Increasing the life of thick cylinders Joining thick cylinders Pre-stressing thick cylinders Calculating stresses in thick cylinders Increasing the life of thick cylinders Joining thick cylinders ANSWER DOWNLOAD EXAMIANS APP
Machine Design An elastic bar is fixed at the upper end and loaded at the lower end by a falling weight. The shock load produced can be reduced by All of these Decreasing the modulus of elasticity of the bar Decreasing the cross-sectional area of the bar Increasing the length of bar All of these Decreasing the modulus of elasticity of the bar Decreasing the cross-sectional area of the bar Increasing the length of bar ANSWER DOWNLOAD EXAMIANS APP
Machine Design The velocity factor for ordinary cut gears operating at velocities up to 12.5 m/s is equal to 0.75/(0.75 + √v) 6/(6 + v) 3/(3 + v) 4.5/(4.5 + v) 0.75/(0.75 + √v) 6/(6 + v) 3/(3 + v) 4.5/(4.5 + v) ANSWER DOWNLOAD EXAMIANS APP
Machine Design Two shafts of the same length and material are joined in series. If the ratio of their diameters is 2, then the ratio of their angles of twist will be 2 16 4 8 2 16 4 8 ANSWER DOWNLOAD EXAMIANS APP
Machine Design The maximum efficiency of a square threaded screw is (1 - sinφ)/ (1 + sinφ) (1 - sinφ)/ (1 + cosφ) (1 + sinφ)/ (1 - sinφ) (1 + cosφ)/ (1 - sinφ) (1 - sinφ)/ (1 + sinφ) (1 - sinφ)/ (1 + cosφ) (1 + sinφ)/ (1 - sinφ) (1 + cosφ)/ (1 - sinφ) ANSWER DOWNLOAD EXAMIANS APP
Machine Design When an open coiled helical compression spring is subjected to an axial compressive load, the maximum shear stress induced in the wire is (where D = Mean diameter of the spring coil, d = Diameter of the spring wire, K = Wahl's stress factor, and W = Axial compressive load on the spring) (2WD/ πd3) × K (WD/ πd3) × K (8WD/ πd3) × K (4WD/ πd3) × K (2WD/ πd3) × K (WD/ πd3) × K (8WD/ πd3) × K (4WD/ πd3) × K ANSWER DOWNLOAD EXAMIANS APP
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