MTL 200 Exam Questions and Answers
Graded A+
Crystalline Material - Correct answer-Atoms arranged in a repeating pattern over
large distances.
Lattice - Correct answer-Three-dimensional array of points coinciding with atom
positions.
Unit Cell - Correct answer-Smallest repeating unit of a lattice, basic building
block.
Polymorphism - Correct answer-Presence of multiple crystal structures in a
chemical compound.
Allotropy - Correct answer-Presence of multiple crystal structures in a chemical
element.
Crystallographic Directions - Correct answer-Vectors indicating directions in a
crystal structure.
Crystallographic Planes - Correct answer-Planes defined within a crystal structure.
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, Linear Density - Correct answer-Density of atoms along a specific direction in a
crystal.
Planar Density - Correct answer-Density of atoms within a specific crystal plane.
Close-Packed Crystal Structures - Correct answer-HCP: ABABAB stacking, FCC:
ABCABC stacking.
Single Crystal - Correct answer-Periodic atom arrangement without grain
boundaries.
Polycrystalline - Correct answer-Multiple crystals with varying orientations.
Grain Boundary - Correct answer-Boundary where atomic alignment differs in
polycrystalline materials.
Anisotropy - Correct answer-Directional property variation in materials.
Isotropy - Correct answer-Uniform property distribution in all directions.
X-ray Diffraction - Correct answer-Analyzing crystal structures using x-ray
patterns, following Bragg's Law.
Bragg's Law - Correct answer-Relates x-ray diffraction angles to crystal lattice
spacing.
Crystalline defect - Correct answer-Lattice irregularities in solids
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Graded A+
Crystalline Material - Correct answer-Atoms arranged in a repeating pattern over
large distances.
Lattice - Correct answer-Three-dimensional array of points coinciding with atom
positions.
Unit Cell - Correct answer-Smallest repeating unit of a lattice, basic building
block.
Polymorphism - Correct answer-Presence of multiple crystal structures in a
chemical compound.
Allotropy - Correct answer-Presence of multiple crystal structures in a chemical
element.
Crystallographic Directions - Correct answer-Vectors indicating directions in a
crystal structure.
Crystallographic Planes - Correct answer-Planes defined within a crystal structure.
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, Linear Density - Correct answer-Density of atoms along a specific direction in a
crystal.
Planar Density - Correct answer-Density of atoms within a specific crystal plane.
Close-Packed Crystal Structures - Correct answer-HCP: ABABAB stacking, FCC:
ABCABC stacking.
Single Crystal - Correct answer-Periodic atom arrangement without grain
boundaries.
Polycrystalline - Correct answer-Multiple crystals with varying orientations.
Grain Boundary - Correct answer-Boundary where atomic alignment differs in
polycrystalline materials.
Anisotropy - Correct answer-Directional property variation in materials.
Isotropy - Correct answer-Uniform property distribution in all directions.
X-ray Diffraction - Correct answer-Analyzing crystal structures using x-ray
patterns, following Bragg's Law.
Bragg's Law - Correct answer-Relates x-ray diffraction angles to crystal lattice
spacing.
Crystalline defect - Correct answer-Lattice irregularities in solids
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