MAE 3324 Exam 1 Review Questions & Answers 2024/2025
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Course
MAE 3324
Institution
MAE 3324
MAE 3324 Exam 1 Review Questions & Answers 2024/2025
Bonding in ceramics - ANSWERSIonic and covalent
Bonding in metals - ANSWERSMetallic
Bonding in polymers - ANSWERSCovalent and secondary
Where do atoms touch in BCC? - ANSWERSAlong body diagonals
BCC atoms/unit cell - ANSWERS2
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MAE 3324 Exam 1 Review Questions &
Answers 2024/2025
Bonding in ceramics - ANSWERSIonic and covalent
Bonding in metals - ANSWERSMetallic
Bonding in polymers - ANSWERSCovalent and secondary
Where do atoms touch in BCC? - ANSWERSAlong body diagonals
BCC atoms/unit cell - ANSWERS2
BCC a=?R - ANSWERS4/sqrt(3)
Where do atoms touch in FCC? - ANSWERSAlong face diagonals
FCC atoms/unit cell - ANSWERS4
Packing pattern for FCC (ABAB, ABCABC, etc.) - ANSWERSABCABC
FCC a=?R - ANSWERS2sqrt(2)
HCP APF - ANSWERS0.74 (max)
Packing pattern for HCP (ABAB, ABCABC, etc.) - ANSWERSABAB
, n, A in density equation - ANSWERSn=number of atoms in unit cell
A=atomic weight
AX-type crystal structure - ANSWERSEqual number of cation/anions
AX-type crystal structure types - ANSWERSRock salt (NaCl), CsCl, ZnS
Rock salt has what kind of crystal structure? - ANSWERSFCC
Crystallographic directions procedure - ANSWERS1. Vector re-positioned (if necessary) to go through the
origin
2. Smallest integer values
3. Enclose in square brackets, no commas
How to write directions and their families - ANSWERS[uvw], <uvw>
Crystallographic planes procedure - ANSWERS1. Read off intercepts
2. Take reciprocal
3. Reduce to smallest integer values
4. Enclose in parentheses, no commas
How to write planes and their families - ANSWERS(hkl), {hkl}
Parallel directions - ANSWERSSame [uvw]
Family of directions - ANSWERSAll combos of u, v, w and their negatives
Parallel planes - ANSWERSSame (hkl) or negatives of h, k, l
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