MSE200-S08-practice_exam_solution

MSE200-S08-practice_exam_solution - Practice Exam MSE 200...

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Practice Exam 1 MSE 200 Practice Exam #1 Spring 2008 Name(print)______________________________ No notes, books, or information stored in calculator memories may be used. Cheating will be punished severely. All of your work must be written on these pages and turned in. To receive full or partial credit on numerical problems, you must show your calculations in step-by-step fashion. Units must be shown when applicable and all plots must have labeled axes . Be sure that you read and answer all parts of each question . Constants, equations, and other data are given on the last page of the exam. __a __1. Metallic bonding can be described as bonding by a. giving up electrons to an electron “sea”. b. sharing electrons between atoms c. exchanging electrons between atoms d. all of the above __c __2. A chlorine atom has 17 electrons. The electronic configuration for a Cl -1 ion is a. 1s 2 2s 2 2p 6 3s 2 3p 5 b. 1s 2 2s 2 2p 6 3s 2 3p 4 c. 1s 2 2s 2 2p 6 3s 2 3p 6 d. 1s 2 2s 2 2p 6 3s 2 3p 5 4s 1 __a __3. Electronegativity is a measure of the tendency of an atom to a. gain an electron b. lose an electronic c. form an isotope d. none of the above __b __4. Which of the following lattices (one atom per lattice site) have close-packed planes? a. body-centered cubic (bcc) and face-centered cubic (fcc) b. hexagonal close packed (HCP) and face-centered cubic (fcc) c. hexagonal close packed (HCP) and body-centered cubic (bcc) d. body-centered cubic (bcc), face-centered cubic (fcc) and hexagonal close packed (HCP) __d __5. Slip involves motion of a. vacancies b. interstitial impurities c. close-packed planes d. dislocations __d __6. The planes in a family of crystallographic planes a. have different atomic arrangements
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Practice Exam 2 b. are all close packed c. are represented by "<hkl>" d. none of the above __b __7. The number of vacancies in metals typically a. increase linearly with increasing temperature b. increase exponentially with increasing temperature c. decrease linearly with increasing temperature d. do not depend on temperature __c __8. Which is (are) examples of linear defects?
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MSE200-S08-practice_exam_solution - Practice Exam MSE 200...

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