q3f02 - Home Introduction Policies Resources Requirements...

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Home Introduction Policies Resources Requirements & Grading Syllabus Assignments Handouts Discussion Web Links Distance Learners Contact MSE 200 1. The nature of stress required to cause slip is a. tensile b. shear c. compression (b ) 2. Experimentally observed values of the stress for plastic
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deformation is a. stress to cause glide in perfect crystal b. stress to cause glide in imperfect crystal c. stress to deform the crystal elastically (b ) 3. To deform the crystal plastically to an experimentally observed value of strain a. small number of dislocations move b. dislocations should not move c. a large number of dislocations should move (c ) 4. The stress-strain curve of cold worked ferrous (mild steel) metal and nonferrous metals appear a. similar b. differ because of serrations in the graph of ferrous c. differ because serrations appear in the graph of non-ferrous (a ) 5. The true stress compared to the engineering stress in a samples subjected to compression is a. smaller b. larger c. equal (a )
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q3f02 - Home Introduction Policies Resources Requirements...

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