Theory of Structures A steel bar 5 m × 50 mm is loaded with 250,000 N. If the modulus of elasticity of the material is 0.2 MN/mm² and Poisson’s ratio is 0.25, the change in the volume of the bar is: 2.125 cm³ 3.125 cm³ 4.125 cm² 1.125 cm³ 2.125 cm³ 3.125 cm³ 4.125 cm² 1.125 cm³ ANSWER DOWNLOAD EXAMIANS APP
Theory of Structures The general expression for the B.M. of a beam of length l is the beam carries M = (wl/2) x – (wx²/2) None of these An isolated load at mid span A load varying linearly from zero at one end to w at the other end A uniformly distributed load w/unit length None of these An isolated load at mid span A load varying linearly from zero at one end to w at the other end A uniformly distributed load w/unit length ANSWER DOWNLOAD EXAMIANS APP
Theory of Structures Stress may be expressed in Newtons Per metre square (N/m2) Per millimetre square (N/mm²) None of these Per centimetre square (N/cm²) Per metre square (N/m2) Per millimetre square (N/mm²) None of these Per centimetre square (N/cm²) ANSWER DOWNLOAD EXAMIANS APP
Theory of Structures The ratio of moments of inertia of a triangular section about its base and about a centroidal axis parallel to its base, is 1.5 3 2 1 1.5 3 2 1 ANSWER DOWNLOAD EXAMIANS APP
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 Straight line formula Perry Rankine Parabolic formula Straight line formula Perry Rankine Parabolic formula ANSWER DOWNLOAD EXAMIANS APP
Theory of Structures section modulus of a square section of side B and that of a circular section of the ratio of the diameter D, is /16 2 /15 3 /8 3 /16 /16 2 /15 3 /8 3 /16 ANSWER DOWNLOAD EXAMIANS APP
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