quiz2s02

# quiz2s02 - a edges b body diagonal c face diagonal b 7 The...

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Home Introduction Policies Resources Requirements & Grading Syllabus Assignments Handouts Discussion Web Links Distance Learners Contact MSE 200 1. Number of atoms that belong to a primitive unit cell is

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a. 2 b. 4 c. 1 (c ) 2. Symmetry associated with a hexagonal crystal is a. 4 fold rotation b. 3 fold rotation c. 6 fold rotation (c ) 3. Packing density of face centered cubic unit cell with a single atom at each lattice position is a. 54% b. 68% c. 74% (c ) 4. The ideal c/a ratio of a close packed hexagonal structure is a. 1.633 b. 1.56 c. 174 ( a) 5. Packing density of close packed hexagonal structure compared to that of an fcc structure is a. higher b. lower c. equal (c ) 6. In bcc structure, atoms touch along the
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Unformatted text preview: a. edges b. body diagonal c. face diagonal ( b) 7. The Miller indices of an atomic plane are ( 211). The intercepts made by the plane with the axes are a. ½, 1, 1 b. 2,1,1 c. 1,1,2 (a ) 8. The Miller indices of a direction are ( -110) and that of a plane are (111). Is the direction contained in the plane ? a. yes b. no (a ) 9. The stacking sequence of an fcc metal is a. ABC ABABC b. ABCABCABC c. CBCBCBCB (b ) 10. Theoretical density of a metal is a. mass of the atoms/voule of the atoms b. mass of the atoms/volume of the unit cell c. mass of the atoms that belong to the unit cell/volume of the unit cell (c )...
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## This note was uploaded on 10/11/2009 for the course MSE 200 taught by Professor Wholedepartment during the Spring '08 term at N.C. State.

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quiz2s02 - a edges b body diagonal c face diagonal b 7 The...

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