EXAMIANS
Slenderness ratio of a long column, is
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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
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If Q is load factor, S is shape factor and F is factor of safety in elastic design, the following:
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Total strain energy theory for the failure of a material at elastic limit, is known
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Maximum principal stress theory for the failure of a material at elastic point, is known
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A compound bar consists of two bars of equal length. Steel bar cross -section is 3500 mm²and 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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A close coil helical spring of mean diameter D consists of n coils of diameter d. If it carries an axial load W, the energy stored in the spring, is
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For determining the support reactions at A and B of a three hinged arch, points B and Care 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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parabolic arch of span and rise , is given by The equation of a
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Beams composed of more than one material, rigidly connected together so as to behave as one piece, are known as
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