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engineering
mechanical engineering
february 2020
02

Mechanical Engineering Questions and Answers February 02, 2020

Expert-verified solutions to help you succeed

A hollow steel tube with an inside diameter of 80 mm must carry an axial tensile load of 330 kN. Determine the smallest allowable outside diameter of the tube if the working stress is 110 MN/m^2.

Determine the largest weight W that can be supported safely by the structure shown in the figure. The working stresses are 16 000 psi for the steel cable and 720 psi for the wood strut BC. Neglect the weight of the structure.

9 ft A A 0.5 in.2 W 12 ft C FIG. P1.12 A 16 in.2

A horizontal pipe with an I.D. = 10 cm and a length = 3000 cm is filled with sand. The sand packed in the tube has a porosity of 20%. The sand pack is filled to contain a water saturation of 30% and an oil saturation of 70%. At these saturations the water is immobile, that is, it does not flow when the system is subjected to a pressure difference.

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