Theory of Structures For calculating the allowable stress of long columns σ0 = σy/n [1 - a (1/r)²]is the empirical formula, known as Perry Rankine Straight line formula Parabolic formula Perry Rankine Straight line formula Parabolic formula ANSWER DOWNLOAD EXAMIANS APP
Theory of Structures A bar L metre long and having its area of cross-section A, is subjected to a gradually applied tensile load W. The strain energy stored in the bar is WL/AE W²L/2AE W²L/AE WL/2AE WL/AE W²L/2AE W²L/AE WL/2AE ANSWER DOWNLOAD EXAMIANS APP
Theory of Structures parabolic arch of span and rise , is given by The equation of a y = 2h/l² × (1 – x) y = 4h/l² × (1 – x) y = h/l² × (1 – x ) y = 3h/l² × (1 – x) y = 2h/l² × (1 – x) y = 4h/l² × (1 – x) y = h/l² × (1 – x ) y = 3h/l² × (1 – x) ANSWER DOWNLOAD EXAMIANS APP
Theory of Structures At any point of a beam, the section modulus may be obtained by dividing the moment of inertia of the section by Maximum compressive stress at the section Depth of the neutral axis Depth of the section Maximum tensile stress at the section Maximum compressive stress at the section Depth of the neutral axis Depth of the section Maximum tensile stress at the section ANSWER DOWNLOAD EXAMIANS APP
Theory of Structures For a strongest rectangular beam cut from a circular log, the ratio of the width and depth, is 0.404 0.303 0.707 0.505 0.404 0.303 0.707 0.505 ANSWER DOWNLOAD EXAMIANS APP
Theory of Structures The horizontal deflection of a parabolic curved beam of span 10 m and rise 3 m when loaded with a uniformly distributed load l t per horizontal length is (where Ic is the M.I. at the crown, which varies as the slope of the arch). 150/EIc 200/EIc 50/EIc 100/EIc 150/EIc 200/EIc 50/EIc 100/EIc ANSWER DOWNLOAD EXAMIANS APP
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