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Which of the following properties of a solid are dependent on crystal imperfections?

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In metals subjected to cold working, strain hardening effect is due to

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Which of the following is a point imperfection

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When deformed elastically an then to have this energy recovered upon unloading is

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The cause of the failure is attributed to

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This property of the material is known as.

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When stressed under isostress conditions, is

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An isotropic elastic material is characterized by

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What is the stress induced in the rod if it is allowed to expand by

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If the two rods experience equal extensions, the ratio of

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The maximum normal stress on the plane will

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The thrust thereby generated on the clamp

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The State of stress at a point when completely specified enables one to determine the

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A steel rod of cross-sectional area 10 mm2 is subjected to loads at points P,Q,R and S as shown in the figure below:

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Tensile strength of CI is much higher than that of

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The equivalent spring stiffness of this new arrangement is equal to

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The stress in the copper rod is

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The magnitude of load P required to fill up the gap of 0.75 mm is:

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When a thick plate is subjected to external loads:

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The Young’s modulus of the material is E. The extension caused by an axial load P is

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