41. The ratio of the deflections of the free end of a cantilever due to an isolated load at $${\frac{1}{3}^{{\text{rd}}}}$$ and $${\frac{2}{3}^{{\text{rd}}}}$$ of the span, is
42. A steel rod 1 metre long having square cross section is pulled under a tensile load of 8 tonnes. The extension in the rod was 1 mm only. If Esteel = 2 × 106 kg/cm2, the side of the rod, is
43. The assumption in the theory of bending of beams is:
44. The maximum deflection of a simply supported beam of span L, carrying an isolated load at the centre of the span; flexural rigidity being E$$I$$, is
45. The horizontal thrust on the ends of a two hinged semicircular arch of radius ‘R’ carrying
46. For a strongest rectangular beam cut from a circular log, the ratio of the width and depth, is
47. If ΣH and ΣV are the algebraic sums of the forces resolved horizontally and vertically respectively and ΣM is the algebraic sum of the moments of forces about any point, for the equilibrium of the body acted upon
48. The ratio of crippling loads of a column having both the ends fixed to the column having both the ends hinged, is
49. The equivalent length of a column of length L, having both the ends hinged, is
50. There are two hinged semicircular arches A, B and C of radii 5 m, 7.5 m and 10 m respectively and each carries a concentrated load W at their crowns. The horizontal thrust at their supports will be in the ratio of
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