EXAMIANS
A spring of mean radius 40 mm contains 8 action coils of steel (N = 80000 N/mm²), 4 mm in diameter. The clearance between the coils being 1 mm when unloaded, the minimum compressive load to remove the clearance, is
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The load on a spring per unit deflection, is called
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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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The equivalent length of a column of length L, having both the ends hinged, is
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A steel bar 20 mm in diameter simply-supported at its ends over a total span of 40 cm carries a load at its centre. If the maximum stress induced in the bar is limited to N/mm², the bending strain energy stored in the bar, is
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The forces in the members of simple trusses, may be analysed by
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Y are the bending moment, moment of inertia, radius of curvature, modulus of If M, I, R, E, F, and elasticity stress and the depth of the neutral axis at section, then
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Beams composed of more than one material, rigidly connected together so as to behave as one piece, are known as
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The equivalent length of a column of length L having one end fixed and the other end free, is
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Maximum strain theory for the failure of a material at the elastic limit, is known as
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