MTL 200 Final Exam Questions & Answers (Grade A+).docx

MTL 200 Final Exam Questions &
Answers (Grade A+)
BCC Structure. atoms?Formula? -
correct answer ✅2 atoms
4R=√3 a


FCC Structure. atoms?Formula? -
correct answer ✅4 atoms
4R=√2 a


Atomic Packing Factor (APF) -
correct answer ✅(volume of atoms in unit cell)/(volume of unit
cell)


Density Formula -
correct answer ✅=(n)(A)/(Vc)(Na)


Density of Materials in order -
correct answer ✅metal>ceramics>polymers


Meaning of paranthesis;

, MTL 200 Final Exam Questions &
Answers (Grade A+)
( ),< >, { }, [ ] -
correct answer ✅(planes), <family of directions>, {family of
planes}, [directions]


Bragg's Equation -
correct answer ✅nλ=2 d sinθ


If diffraction angle is given what must happen to it to use in
formula. -
correct answer ✅divide diffraction angle by two to use in formula.


interplanar spacing equation -
correct answer ✅


Conditions for Diffraction in;
FCC?
BCC? -
correct answer ✅FCC= h,k and l must all be odd or even
BCC=h,k and l must add up to an even number