Q. A material is said to be perfectly elastic if

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Q. Beams composed of more than one material, rigidly connected together so as to behave as one piece, are known as

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Q. Pick up the correct statement from the following:

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Q. The maximum magnitude of shear stress due to shear force F on a rectangular section of area A at the neutral axis, is

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Q. A concentrated load P is supported by the free end of a quadrantal ring AB whose end B is fixed. The ratio of the vertical to horizontal deflections of the end A, is

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Q. Stress may be defined as

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Q. Total strain energy theory for the failure of a material at elastic limit, is known

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Q. Stress may be expressed in Newtons

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Q. Principal planes are subjected to

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Q. In plastic analysis, the shape factor for a circular section, is

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Q. The ratio of maximum shear stress to average shear stress of a circular beam, is

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Q. A rolled steel joist is simply supported at its ends and carries a uniformly distributed load which causes a maximum deflection of 10 mm and slope at the ends of 0.002 radian. The length of the joist will be,

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Q. 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 x 106 kg/cm², the side of the rod, is

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Q. A compound bar consists of two bars of equal length. Steel bar cross-section is 3500 mm² and that of brass bar is 3000 mm². These are subjected to a compressive load 100,000 N. If Eb = 0.2 MN/mm² and Eb = 0.1 MN/mm², the stresses developed are:

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Q. Flat spiral springs

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Q. By applying the static equations i.e. ΣH = 0, ΣV = 0 and ΣM = 0, to a determinate structure, we may determine

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Q. The ratio of the length and diameter of a simply supported uniform circular beam which experiences maximum bending stress equal to tensile stress due to same load at its mid span, is

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Q. If a solid shaft (diameter 20 cm, length 400 cm, N = 0.8 x 10⁵ N/mm²) when subjected to a twisting moment, produces maximum shear stress of 50 N/mm², the angle of twist in radians, is

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Q. The forces in the members of simple trusses, may be analysed by

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Q. A simply supported beam which carries a uniformly distributed load has two equal overhangs. To have maximum B.M. produced in the beam least possible, the ratio of the length of the overhang to the total length of the beam, is

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