Machine Design If a shaft made from ductile material is subjected to combined bending and twisting moment, calculations based on which one of the following failure theories will give the most conservative value? Maximum strain energy theory Maximum principal stress theory Maximum shear stress theory Maximum distortion energy theory Maximum strain energy theory Maximum principal stress theory Maximum shear stress theory Maximum distortion energy theory ANSWER DOWNLOAD EXAMIANS APP
Machine Design According to maximum normal stress theory, the maximum normal stress in the shaft is (1/2) × √(σ² × 4τ²) σ + √(σ² × 4τ²) √(σ² × 4τ²) (1/2) × [σ + √(σ² × 4τ²)] (1/2) × √(σ² × 4τ²) σ + √(σ² × 4τ²) √(σ² × 4τ²) (1/2) × [σ + √(σ² × 4τ²)] 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) (4WD/ πd3) × K (WD/ πd3) × K (8WD/ πd3) × K (2WD/ πd3) × K (4WD/ πd3) × K (WD/ πd3) × K (8WD/ πd3) × K (2WD/ πd3) × K ANSWER DOWNLOAD EXAMIANS APP
Machine Design In cyclic loading, stress concentration is more serious in Elastic materials Brittle materials Ductile materials Brittle as well as ductile materials Elastic materials Brittle materials Ductile materials Brittle as well as ductile materials ANSWER DOWNLOAD EXAMIANS APP
Machine Design The longitudinal joint in boilers is used to get the required Efficiency of boiler Length of boiler Length and diameter of boiler Diameter of boiler Efficiency of boiler Length of boiler Length and diameter of boiler Diameter of boiler ANSWER DOWNLOAD EXAMIANS APP
Machine Design Cast iron pipes are mainly used In water and sewage systems For conveying steam All of these In pressure lubrication systems on prime movers In water and sewage systems For conveying steam All of these In pressure lubrication systems on prime movers ANSWER DOWNLOAD EXAMIANS APP
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