EXAM1-2009-ans-key

EXAM1-2009-ans-key - MSE 150.02 EXAM 1 SPR 2009 EXAM I...

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MSE 150.02 EXAM 1 SPR 2009 EXAM I MATERIALS SCIENCE I - MSE 150.02 SPRING 2009 February 6, 2009 HONOR CODE I PLEDGE MY HONOR THAT I HAVE NEITHER GIVEN OR RECEIVED AID ON THIS EXAMINATION. I FURTHER PLEDGE THAT, IF I HAVE REASON TO SUSPECT THAT THE CODE HAS BEEN VIOLATED, I HAVE TAKEN OR WILL TAKE ACTION AS OUTLINED IN THE CODE. SIGNATURE _________________________________ PRINT NAME ________________________________ DO NOT TURN THIS PAGE UNTIL 11:10 AM YOU HAVE 50 MINUTES TO COMPLETE THIS EXAM 1
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EXAM 1 SPR 2009 Ques tion 1: 10 points Label the following statements True ( T ) or False ( F ), 1- Metallic materials have directional primary atomic bonding between the atoms. False 2- In ceramics, the degree of ionic bonding is inversely related to the electronegativity difference between the elements. False . 3- The hydrogen/carbon bond in polymers is almost completely covalent in character. True 4- The covalent bond is directional in nature. True 5- Weak atomic bonds are characterized by low thermal expansion coefficients and large elastic moduli. False 6- Thermoplastic polymers are characterized by secondary bonding between the chains. True 7- The atomic packing factor for BCC structures is higher than for FCC structures. False 8- The stacking sequence of close packed planes of atoms determines whether a structure is FCC or HCP. True 9- Noncrystalline materials exhibit long range order. False
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This note was uploaded on 03/17/2010 for the course MSE MSE 150 taught by Professor Jim during the Spring '09 term at Vanderbilt.

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EXAM1-2009-ans-key - MSE 150.02 EXAM 1 SPR 2009 EXAM I...

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