Aerospace Engineering > GATE 2021 > Column Buckling
A 3 m x 1 m signboard is supported by a vertical hollow pole that is fixed to the ground. The pole has a square cross-section with outer dimension 250 mm. The yield strength of the pole material is 240 MPa. To sustain a wind pressure of 7.5 kPa, the dimension d of the pole is _______ mm (round off to the nearest integer). (Neglect the effect of transverse shear and load due to wind pressure acting on the pole)
Correct : 232 to 238
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