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MATSCI EXAM I S10 revB Ans

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

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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: 4. The most important factor in determining solid solubility of one metal in another metal is;
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