MSE Exam 1 UPDATED Actual Exam Questions and CORRECT Answers
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Course
MSE
Institution
MSE
MSE Exam 1 UPDATED Actual Exam
Questions and CORRECT Answers
which of the following describe covalent bonds
- Bond energies are very small.
- One example is NaCl.
- Electrons are shared between adjacent atoms.
- The number of covalent bonds that is possible for a particular atom is determine...
MSE Exam 1 UPDATED Actual Exam
Questions and CORRECT Answers
which of the following describe covalent bonds
- Bond energies are very small.
- One example is NaCl.
- Electrons are shared between adjacent atoms.
- The number of covalent bonds that is possible for a particular atom is determined by the
atom's atomic number.
- Bonding is directional. - CORRECT ANSWER- ✔✔
Which of the following describe ionic bonds.
- Electrons are shared between adjacent atoms.
- One example is NaCl.
- Bonding typically takes place between metallic and nonmetallic elements.
- Bond energies are relatively small.
- Bonding is directional. - CORRECT ANSWER- ✔✔
Which of the following is a consequence of the type of atomic bonding within most
ceramics?
a. Poor electrical and thermal conductivity
b. Ductile failure at room temperature
c. Low density
d. Low melting temperatures - CORRECT ANSWER- ✔✔Poor electrical and thermal
conductivity
BCC crystal structure - CORRECT ANSWER- ✔✔A cubic unit cell with atoms located at all
8 corners and a single atom at the center
Which of the following describes valence electrons.
- they drift freely within most metals.
, - they participate in bonding between atoms to form different atomic and molecular
structures.
- they are the lowest energy electrons.
- The number of them is given by the atom's atomic number.
-they occupy the outermost shell of an atom. - CORRECT ANSWER- ✔✔
Atoms located at external surfaces of a material are in a __________ energy state than the
atoms at the interior of a material due to unsatisfied bonding conditions. - CORRECT
ANSWER- ✔✔higher
(T/F) During a tensile test, the measured values of force versus elongation are dependent on
specimen geometry, making comparisons between samples of different sizes difficult to
perform. - CORRECT ANSWER- ✔✔true
indicator of a "family" of equivalent planes within a unit cell - CORRECT ANSWER-
✔✔{100}
(more/less) Grain boundaries are ________ chemically reactive than the grains themselves,
due to atoms near the grain boundaries having less regular (thus unsatisfied) bonds. -
CORRECT ANSWER- ✔✔more
indicator of a single plane in a unit cell - CORRECT ANSWER- ✔✔(100)
Strain hardening is a phenomenon whereby a metal becomes _________&_________ as it is
plastically deformed due to an increase in dislocation density within the material. -
CORRECT ANSWER- ✔✔stronger and less ductile
"strain offset" method is often used to determine - CORRECT ANSWER- ✔✔yield strength
Compared with the other classes of materials, metals have a relatively large number of
different crystal structures because: - CORRECT ANSWER- ✔✔The bonds within metals are
nondirectional.
which of the following describe the concept of a unit cell
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