MTL 200 PRACTICE EXAMINATION SCRIPT
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⫸ Lattice. Ans: Three-dimensional array of points coinciding with
atom positions.
⫸ Unit Cell. Ans: Smallest repeating unit of a lattice, basic building
block.
⫸ Polymorphism. Ans: Presence of multiple crystal structures in a
chemical compound.
⫸ Allotropy. Ans: Presence of multiple crystal structures in a
chemical element.
⫸ Crystallographic Directions. Ans: Vectors indicating directions in
a crystal structure.
⫸ Crystallographic Planes. Ans: Planes defined within a crystal
structure.
⫸ Linear Density. Ans: Density of atoms along a specific direction in
a crystal.
, ⫸ Planar Density. Ans: Density of atoms within a specific crystal
plane.
⫸ Close-Packed Crystal Structures. Ans: HCP: ABABAB stacking,
FCC: ABCABC stacking.
⫸ Single Crystal. Ans: Periodic atom arrangement without grain
boundaries.
⫸ Polycrystalline. Ans: Multiple crystals with varying orientations.
⫸ Grain Boundary. Ans: Boundary where atomic alignment differs in
polycrystalline materials.
⫸ Anisotropy. Ans: Directional property variation in materials.
⫸ Isotropy. Ans: Uniform property distribution in all directions.
⫸ X-ray Diffraction. Ans: Analyzing crystal structures using x-ray
patterns, following Bragg's Law.
⫸ Bragg's Law. Ans: Relates x-ray diffraction angles to crystal
lattice spacing.
⫸ Crystalline defect. Ans: Lattice irregularities in solids
2026 RELIABLE SOLUTIONS OFFERED
⫸ Lattice. Ans: Three-dimensional array of points coinciding with
atom positions.
⫸ Unit Cell. Ans: Smallest repeating unit of a lattice, basic building
block.
⫸ Polymorphism. Ans: Presence of multiple crystal structures in a
chemical compound.
⫸ Allotropy. Ans: Presence of multiple crystal structures in a
chemical element.
⫸ Crystallographic Directions. Ans: Vectors indicating directions in
a crystal structure.
⫸ Crystallographic Planes. Ans: Planes defined within a crystal
structure.
⫸ Linear Density. Ans: Density of atoms along a specific direction in
a crystal.
, ⫸ Planar Density. Ans: Density of atoms within a specific crystal
plane.
⫸ Close-Packed Crystal Structures. Ans: HCP: ABABAB stacking,
FCC: ABCABC stacking.
⫸ Single Crystal. Ans: Periodic atom arrangement without grain
boundaries.
⫸ Polycrystalline. Ans: Multiple crystals with varying orientations.
⫸ Grain Boundary. Ans: Boundary where atomic alignment differs in
polycrystalline materials.
⫸ Anisotropy. Ans: Directional property variation in materials.
⫸ Isotropy. Ans: Uniform property distribution in all directions.
⫸ X-ray Diffraction. Ans: Analyzing crystal structures using x-ray
patterns, following Bragg's Law.
⫸ Bragg's Law. Ans: Relates x-ray diffraction angles to crystal
lattice spacing.
⫸ Crystalline defect. Ans: Lattice irregularities in solids