MSE:250 Exam Questions With Verified Answers

©BRIGHTSTARS EXAM SOLUTIONS 2024/2025

ALL RIGHTS RESERVED.


MSE:250 Exam Questions With Verified
Answers


There are 30 questions in this set. 1. Crystal plane orientations in a unit-cell can affect __ and __.
a. amorphous nucleation; ceramic formation
b. amorphous growth; polymer formation
c. crystal nucleation; metal formation
d. crystal growth; metal deformation

e. none of the above - Answers✔d. crystal growth; metal deformation
2. When indexing or drawing crystal orientations, round brackets or parentheses are used to
indicate indices for __.
a. families of planes
b. individual planes
c. individual directions
d. families of directions

e. none of the above - Answers✔b. individual planes
3. When indexing or drawing crystal orientations, curly brackets are used to indicate indices for
__.
a. families of planes
b. individual planes
c. individual directions
d. families of directions

e. none of the above - Answers✔a. families of planes



1

, ©BRIGHTSTARS EXAM SOLUTIONS 2024/2025

ALL RIGHTS RESERVED.
4. A crystallographic plane in a unit cell can be indexed using __ of the plane with the __ unit-
cell __.
a. intercepts; 3; axes
b. axes; free; directions
c. intercepts; 2; axes
d. axes; free; structure

e. faces; original; structure - Answers✔a. intercepts; 3; axes
5. A crystallographic plane's __ can be used to draw the plane in the unit cell.
a. HKL intercepts
b. HKL indices
c. HKL axes
d. uvw axes

e. xyz axes - Answers✔b. HKL indices
6. The planar packing factor of a crystallographic plane of a given crystal can affect the __ of
that __.
a. structure; crystal
b. properties; plane
c. structure; packing
d. properties; packing

e. factor; packing - Answers✔b. properties; plane
7. The atom planar-density of a crystallographic plane of a given crystal can affect the __ of that
__.
a. structure; crystal
b. properties; plane
c. structure; packing
d. properties; packing

e. factor; packing - Answers✔b. properties; plane



2

, ©BRIGHTSTARS EXAM SOLUTIONS 2024/2025

ALL RIGHTS RESERVED.
8. A slip system is where a metal crystal __ on specific __ and along specific __ that are related
to the crystal structure of the metal.
a. forms; crystals; stresses
b. deforms; planes; stresses
c. forms; planes; directions
d. deforms; planes; directions

e. forms; crystals; directions - Answers✔d. deforms; planes; directions
9. Metals deform on __ planes and in __ directions.
a. close-packed; close-packed
b. loose-packed; loose-packed
c. close-packed; loose-packed
d. loose-packed; close-packed

e. none of the above - Answers✔a. close-packed; close-packed
10. Solid-state lasers are typically grown by __ deposition of __ of atoms on a specific __.
a. solid-phase; crystals; direction
b. solid-phase; directions; plane
c. liquid-phase; crystals; direction
d. vapor-phase; directions; plane

e. vapor-phase; layers; plane - Answers✔e. vapor-phase; layers; plane
11. Gems like diamond grow on __ that reveal the __ of the gem.
a. crystal directions; amorphous nature
b. crystal planes; amorphous nature
c. specific planes; crystal structure
d. specific directions; crystal structure

e. amorphous lattices; amorphous structure - Answers✔c. specific planes; crystal structure
12. To determine the Miller indices of a plane in a unit cell, we specify an origin at a __ of the
unit cell; record __ of the plane with the __; take the __ of the __; reduce these to the __ integer
values; enclose these in __.

3

, ©BRIGHTSTARS EXAM SOLUTIONS 2024/2025

ALL RIGHTS RESERVED.
a. center; intercepts; axes; reciprocals; intercepts; smallest; square brackets
b. corner; lengths; axes; reciprocals; intercepts; smallest; square brackets
c. corner; intercepts; planes; products; intercepts; smallest; parentheses
d. corner; intercepts; axes; reciprocals; intercepts; smallest; parentheses

e. corner; intercepts; planes; products; sides; largest; parentheses - Answers✔d. corner;
intercepts; axes; reciprocals; intercepts; smallest; parentheses
13. In the Miller indices for a plane, negative intercepts are represented by __ the indices.
a. minus before
b. bars above
c. minus after
d. square brackets before

e. angled brackets before - Answers✔b. bars above
14. A direction with the same indices as a plane is __ the plane.
a. parallel to
b. in
c. perpendicular to
d. on

e. around - Answers✔c. perpendicular to
15. If we are given the Miller indices of a plane, we do the following to draw it. Draw a __;
select an origin; invert the __ to obtain __ on the axes; mark the __ along the xyz axes; draw the
__ connecting the __.
a. crystal structure; indices; loci; focal points; direction; planar edges
b. unit cell; axes; intercepts; intercepts; plane; intercepts
c. crystal structure; indices; loci; focal points; plane; planar edges
d. crystal structure; axes; intercepts; intercepts; direction; planar edges

e. unit cell; indices; intercepts; intercepts; plane; intercepts - Answers✔e. unit cell; indices;
intercepts; intercepts; plane; intercepts
16. Dendrites in FCC materials grow on __ planes.


4