Q. A solid uniform metal bar is hanging vertically from its upper end. Its elongation will be _________

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Q. A steel bar of 20mm x 20mm square cross-section is subjected to an axial compressive load of 100kN. If the length of the bar is 1m and E=200GPa, then what will be the elongation of the bar?

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Q. What will be the elongation of a bar of 1250mm² area and 90cm length when applied a force of 130kN if E = 1.05x 10⁵ N/mm²?

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Q. A rod of two sections of area 625mm² and 2500mm² of length 120cm and 60cm respectively. If the load applied is 45kN then what will be the elongation (E = 2.1x 10⁵ N/mm²)?

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Q. A composite rod is 1000mm long, its two ends are 40mm² and 30mm² in area and length are 300mm and 200mm respectively. The middle portion of the rod is 20mm² in area. If the rod is subjected to an axial tensile load of 1000N, what will be its total elongation (E = 200GPa)?

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Q. A mild steel wire 5mm in diameter and 1m ling. If the wire is subjected to an axial tensile load 10kN what will be its extension?

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Q. A composite rod is 1000mm long, its two ends are 40 mm² and 30mm² in area and length are 400mm and 600mm respectively. If the rod is subjected to an axial tensile load of 1000N, what will be its total elongation(E = 200GPa)?

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Q. How does the elastic constant varys with the elongation of body?

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Q. If a bar of sections of two different length and different diameters are in a line and P load is acting axially on them then what will be the change in length of the bar?

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Q. If the given forces P₁, P₂, P₃, P₄ and P₅ which are co planar and concurrent are such that the force polygon does not close, then the system will

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Q. A composite bar of two sections of each of length 100mm, 150mm. When force is applied, all the sections causes an elongation of 0.1mm. What will the resultant strain in the bar?

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Q. A brass bar, having cross sectional area of 150mm², is subjected to axial force of 50kN. What will be the total strain of bar if E= 1.05 x 104 N/mm²?

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Q. A bar having two sections of cross sectional area of 100mm² and 200mm² respectively. The length of both the sections is 200mm. What will be the total strain in the bar if it is subjected to axial force of 100kN and E = 10⁵ N/mm²?

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Q. A composite bar having two sections of cross-sectional area 100mm² and 200mm² respectively. The length of both the sections is 100mm. What will be the total elongation of bar if it is subjected to axial force of 100kN and E = 10⁵ N/mm²?

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Q. A brass bar, having cross sectional area of 100mm², is subjected to axial force of 50kN. The length of two sections is 100mm and 200mm respectively. What will be the total elongation of bar if E = 1.05 x 10⁵ N/mm² ?

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Q. A composite bar have four sections each of length 100mm, 150mm, 200mm, 250mm. When force is applied, all the sections causes an elongation of 0.1mm. What will the resultant strain in the bar?

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Q. Two sections in a bar of length 10cm and 20cm respectively are pulled axially. It causes an elongation of 0.2mm and 0.4mm respectively in each section. What will be the resultant strain in the bar?

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Q. Three sections in a beam are of equal length of 100mm. All three sections are pulled axially with 50kN and due to it elongated by 0.2mm. What will be the resultant strain in the beam?

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Q. How the total strain in any body subjected to different loads at different sections can be calculated?

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Q. Which law states the when a number of loads are acting on a body, the resulting strain, according to principle of superposition, will be the algebraic sum of strains caused by individual loads?

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