EXAMIANS
A lift of weight W is lifted by a rope with an acceleration f. If the area of cross-section of the rope is A, the stress in the rope is
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The ratio of the length and depth of a simply supported rectangular beam which experiences maximum bending stress equal to tensile stress, due to same load at its mid span, is
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The maximum bending moment for a simply supported beam with a uniformly distributed load w/unit length, is
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The yield moment of a cross section is defined as the moment that will just produce the yield stress in
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If a solid shaft (diameter 20 cm, length 400 cm, N = 0.8 × 105 N/mm²) when subjected to a twisting moment, produces maximum shear stress of 50 N/mm 2, the angle of twist in radians, is
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The stiffness of the close coil helical spring is
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The load on a spring per unit deflection, is called
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For beams of uniform strength, if depth is constant,
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The ratio of maximum shear stress to average shear stress of a circular beam, is
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A compound bar consists of two bars of equal length. Steel bar cross -section is 3500 mm²and that of brass bar is 3000 mm². These are subjected to a compressive load 100,000 N. If Eb = 0.2 MN/mm² and Eb = 0.1 MN/mm², the stresses developed are:
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