1. Which of the following statements is false? a. b. c, Generally, the more diff
ID: 293578 • Letter: 1
Question
1. Which of the following statements is false? a. b. c, Generally, the more difference there is between YS and UTS, the more ductile the material is Deformation is uniform at ? > UTSI Total strain a material exhibits through failure is defined as the % elongation 2. Regarding Modulus of Elasticity (E); which of the following statements is true? a. b. C. Low € means high ? results in a lot of elastic deformation High € means very low ? required for small amounts of elastic deformation The value of ? may be utilized to predict the duration of "necking" process . Which of the following is false about the definition of "phase" in alloys? A phase can be continuous or discontinuous Distinct boundaries and interfaces that separate a phase from other phases Phase is composed of only pure substances a. b.Explanation / Answer
1. b . deformation is uniform at stress > uts . false
beacuse there is no deformation beyond UTS and material fails by rupture
2 a low youngs modulus means high stress results in alot of elastic deformation - true
stress = YM x strain
therfore according to this relation with lower YM value stress will result in more deformation
3. Phases is composed of oonly pure substances - false
it can be a combination of substances
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