An l-section beam, 150 mm deep by 80 mm wide, with web 20 mm thick and flanges 15 mm thick, is simply supported and carries a uniformly distributed load. Calculate the span length if the maximum shear stress is 0.25 times the maximum bending stress. (1. 248 m)

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British Gravitational Bg System Of Units

Measuring is the comparison of a particular physical quantity with its reference value. A unit is a fixed physical quantity. The length is a physical quantity. A physical quantity is the product of a unit and the numerical value we need to compare with.