mweeks_Final Exam Review 2

mweeks_Final Exam Review 2 - University of California,...

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ENGR54 – Principles of Materials Science and Engineering: Discussion 07 E54 Final Exam Review University of California, Irvine E54, Winter ‘08
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ENGR54 – Principles of Materials Science and Engineering: Discussion 07 An alloy Si and C will have primarily (a) ionic bonding (b) metallic bonding (c) covalent bonding (d) male bonding
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ENGR54 – Principles of Materials Science and Engineering: Discussion 07 An alloy of Pt and Au will have primarily (a) covalent bonding (b) ionic bonding (c) metallic bonding (d) none of the above
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ENGR54 – Principles of Materials Science and Engineering: Discussion 07 (a) covalent bonding (b) ionic bonding (c) metallic bonding (d) none of the above A compound made of Mg and F will have primarily
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ENGR54 – Principles of Materials Science and Engineering: Discussion 07 What is this direction? [ ] 101 [ ] 1 1 1 [ ] 1 1 1 z x y (a) (b) (c) (d) [ ] 111
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ENGR54 – Principles of Materials Science and Engineering: Discussion 07 What is this plane? z x y (a) (110) (b) (101) (c) (101) (d) (111)
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ENGR54 – Principles of Materials Science and Engineering: Discussion 07 A metal is easier to plastically deform if (a) the yield strength is lower (b) dislocations are difficult to move (c) impurities are added (d) all of the above (e) none of the above
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ENGR54 – Principles of Materials Science and Engineering: Discussion 07 The critical resolved shear stress for a material (a) is greater than the yield stress (b) is less than the yield stress (c) is the same as the yield stress (d) none of the above
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ENGR54 – Principles of Materials Science and Engineering: Discussion 07 HCP and FCC metals (a) are both equally easy to plastically deform (b) have the same atomic packing factor (c) are both close packed (d) b and c
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ENGR54 – Principles of Materials Science and Engineering: Discussion 07 1 If a cubic material has a lattice constant of 3Å, the spacing between (110) planes will be a) greater than 3Å b) less than 3Å c) equal to 3Å d) unable to calculate
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ENGR54 – Principles of Materials Science and Engineering: Discussion 07 1 If the melting point of a metal is 1000 °C, the material will not creep if held at a) 523 °C b) 400 °C c) 610 °C d) 236 °C Give highest temperature where creep will not occur.
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ENGR54 – Principles of Materials Science and Engineering: Discussion 07 1 The number of vacancies in a metal is dependent on a) Temperature b) The atomic number of a material c) The color of the material d) The application of the metal
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ENGR54 – Principles of Materials Science and Engineering: Discussion 07 1 Dislocations move more easily in a) an ionic material than in a metal.
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mweeks_Final Exam Review 2 - University of California,...

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