The safe stress for a hollow steel column which carries an axial load of 2100 kN is 125 MN/m². if the external diameter of the column is 30cm, what will be the internal diameter? A)25 cm B)26.19cm C)30.14 cm D)27.9 cm

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Quizplus · Accepted Answer

The internal diameter can be calculated using the formula for stress, which is stress = force / area. The area of a hollow cylinder is π/4 * (D^2 - d^2), where D is the external diameter and d is the internal diameter. Rearranging the formula to solve for d and substituting the given values (stress = 125 MN/m^2 = 125 N/mm^2, force = 2100 kN = 2100*10^3 N, D = 30 cm = 300 mm), we can find the internal diameter.

The Safe Stress for a Hollow Steel Column Which Carries