Q. The normal component of a force inclined through θ° is obtained by multiplying the force by

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Q. 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

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Q. For determining the support reactions at A and B of a three hinged arch, points B and C are joined and produced to intersect the load line at D and a line parallel to the load line through A at D'. Distances AD, DD' and AD' when measured were 4 cm, 3 cm and 5 cm respectively. The angle between the reactions at A and B is

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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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