Machine Design A screw is said to be a self locking screw, if its efficiency is Less than 50% Equal to 50% More than 50% None of these Less than 50% Equal to 50% More than 50% None of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design The wire ropes make contact at Anywhere in the groove of the pulley Sides and bottom of groove of the pulley Sides of groove of the pulley Bottom of groove of the pulley Anywhere in the groove of the pulley Sides and bottom of groove of the pulley Sides of groove of the pulley Bottom of groove of the pulley 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 (4WD/ πd3) × K (8WD/ πd3) × K (2WD/ πd3) × K (WD/ πd3) × K (4WD/ πd3) × K (8WD/ πd3) × K ANSWER DOWNLOAD EXAMIANS APP
Machine Design For a bevel gear having the pitch angle θ, the ratio of formative number of teeth (TE) to actual number of teeth (T) is 1/tanθ 1/cosθ 1/sinθ sinθ cosθ 1/tanθ 1/cosθ 1/sinθ sinθ cosθ ANSWER DOWNLOAD EXAMIANS APP
Machine Design Which is correct statement? Stress concentration in static loading is Very serious in brittle materials and less serious in ductile materials Seriousness would depend on other factors Very serious in ductile materials and less serious in brittle materials Equally serious in both types of materials Very serious in brittle materials and less serious in ductile materials Seriousness would depend on other factors Very serious in ductile materials and less serious in brittle materials Equally serious in both types of materials 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 Increasing the length of bar Decreasing the cross-sectional area of the bar All of these Decreasing the modulus of elasticity of the bar Increasing the length of bar Decreasing the cross-sectional area of the bar ANSWER DOWNLOAD EXAMIANS APP
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