Q. Pick up the incorrect statement from the following : The torsional resistance of a shaft is directly proportional to

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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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