MATSCI EXAM I S10 revB Ans

MATSCI EXAM I S10 revB Ans - Engineering Material Science...

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Engineering Material Science (1204) EXAM I - ANSWERS 3 Feb. 2010 I. Multiple Choice (2 pts each): Select the best answer 1. You would normally expect for a material to be more likely to form a crystal structure if it: a. has directional covalent bonds b. has metallic bonding c. has covalent primary bonding and van der Waals secondary bonding d. has hydrogen bonding 2. In metallic bonding a. atoms share valence electrons b. ion cores share a “sea” of electrons c. some atoms give up their valance electrons d. opposite ends of dipoles attract each other 3. The fact that iron-carbon alloys (steel) can have different crystal structures depending on temperature is an example of: a. isotropy b. anisotropy c. allotropy d. dingotropy 4. The most important factor in determining solid solubility of one metal in another metal is; a. identical crystal structures b. equality of electronegativity c. relative size of the atoms d. equality of valance 5. The diffusion coefficient is dependent on: a. the solvent b. the solute c. the temperature d. all of the above Page 1 of 4
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II. Short Answer 6. What are the three principal metal crystal structure unit cells (spell
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This note was uploaded on 04/07/2010 for the course MAT SCI n/a taught by Professor N/a during the Spring '10 term at West Point.

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MATSCI EXAM I S10 revB Ans - Engineering Material Science...

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