Q. Photo stress method is ___________

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Q. What is the factor of safety?

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Q. Which one of the following has the largest value of thermal coefficient?

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Q. Identify which factor may cause a lowered body temperature:

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Q. If a bar of two different length are in a line and P load is acting axially on them then what will be the change in length of the bar if the radius of both different lengths is same?

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Q. If a bar of two sections of different diameters of same length 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. Does the value of stress in each section of a composite bar is constant or not?

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Q. A composite bar of two sections of equal length and equal diameter is under an axial pull of 10kN. What will be the stresses in the two sections?

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Q. A composite bar of two sections of unequal length and equal diameter is under an axial pull of 10kN. What will be the stresses in the two sections?

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Q. A composite bar of two sections of equal length and given diameter is under an axial pull of 15kN. What will be the stresses in the two sections in N/mm²?

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

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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. 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. 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. 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 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 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 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 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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