EXAMIANS
In a shaft, the shear stress is not directly proportional to
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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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a uniform circular bar of diameter d and length , which extends by an The deflection of amount under a tensile pull , when it carries the same load at its mid-span, is
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If Q is load factor, S is shape factor and F is factor of safety in elastic design, the following:
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For beams breadth is constant,
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In case of a simply supported I-section beam of span L and loaded with a central load W, the length of elasto-plastic zone of the plastic hinge, is
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The ratio of lateral strain to axial strain of a homogeneous material, is known
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If E, N, K and 1/m are modulus of elasticity, modulus of rigidity. Bulk modulus and Poisson ratio of the material, the following relationship holds good
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The vertical reaction for the arch 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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