BME 350 FINAL QUESTIONS WITH VERIFIED
ANSWERS
BME 350 is a required course in BME curriculum. Which of the following statements
best reflect the rationale for this decision - Answers - at the heart of every engineering
problem is a materials engineering challenge
materials engineering is so important that historians named ___ to reflect the materials
used in that period - Answers - ages
What materials were used in the stone age AND still used today - Answers - animal
skins, wood, bone, hair, clay, stone
animal tendons were used during the stone age. select from the list of choices the
engineering properties that are features of animal tendons and thus motivated their use
- Answers - deformable, strong, energy recovery, favorable elastic modulus
what are the constituents of bronze - Answers - Cu, Sn
bronze is an alloy that could be shaped into useful objects by which of the following
methods - Answers - casting, hammering
what is the basis for bronze's corrosion resistance - Answers - spontaneous formation of
an oxide layer
steel is made by alloying Fe with what other material - Answers - C
what is the enduring engineering property of bronze that makes it so useful today -
Answers - corrosion resistant
which of the following iron based alloys is FDA approved for use as an implanted
material - Answers - type 316L stainless steel
true or false: a solute can diffuse when placed in liquid solvent, but not in a solid solvent
- Answers - false
true or false: chemical bonding is one of the major determinants of material type -
Answers - true
ceramic materials can be useful for biomedical applications because such materials are
- Answers - hard, high electrical resistivity, smooth, corrosion resistant
, what is the key difference btw bulk and diffusion flow - Answers - the cause of the
matter flow
what causes flow of matter by diffusion - Answers - concentration gradient
from a thermodynamic perspective, diffusion is driven by ___ - Answers - gibbs free
energy gradient
the gibbs free energy gradient is the primary driver of diffusion, but what is meant by
gibbs free energy gradient - Answers - maximum reversible work that can be done by a
system at constant T and P
the change in gibbs free energy is equal to the - Answers - work done by the system to
its surroundings minus the work of the pressure forces
materials engineers consider gibbs free energy to predict the direction of a reaction if
which two conditions are specified? - Answers - temperature, pressure
if the gibbs free energy of a process is determined to be positive, then the reaction
will___ - Answers - not occur spontaneously
what best describes an Arrhenius relationship - Answers - y=A exp(-B/KT)
how many experimental tests are needed to estimate the value of B in the arrhenius
relationship - Answers - 2
how can a materials engineer calculate the values of C and B in the arrhenius
relationship with 2 experiments - Answers - by taking the logs and plotting the results
WHat information is obtained by taking the log of both sides of the arrhenious
relationship and plotting the results - Answers - the value of C, the activation energy of
the system abbreviated by Q
the maxwell boltzman distribution specifies the ___ of finding a molecule at a particular
___ - Answers - probability, temperature
the form of the maxwell boltzman distribution follows an arrhenious relationship -
Answers - true
what fundamentally increases as temperature increases in the maxwell boltzman
distribution - Answers - larger number of particles are availible to overcome a given
energy barrier q
when a process can be described by an arrhenious relationship, if you know the
activation energym then you can find the ____ - Answers - process
ANSWERS
BME 350 is a required course in BME curriculum. Which of the following statements
best reflect the rationale for this decision - Answers - at the heart of every engineering
problem is a materials engineering challenge
materials engineering is so important that historians named ___ to reflect the materials
used in that period - Answers - ages
What materials were used in the stone age AND still used today - Answers - animal
skins, wood, bone, hair, clay, stone
animal tendons were used during the stone age. select from the list of choices the
engineering properties that are features of animal tendons and thus motivated their use
- Answers - deformable, strong, energy recovery, favorable elastic modulus
what are the constituents of bronze - Answers - Cu, Sn
bronze is an alloy that could be shaped into useful objects by which of the following
methods - Answers - casting, hammering
what is the basis for bronze's corrosion resistance - Answers - spontaneous formation of
an oxide layer
steel is made by alloying Fe with what other material - Answers - C
what is the enduring engineering property of bronze that makes it so useful today -
Answers - corrosion resistant
which of the following iron based alloys is FDA approved for use as an implanted
material - Answers - type 316L stainless steel
true or false: a solute can diffuse when placed in liquid solvent, but not in a solid solvent
- Answers - false
true or false: chemical bonding is one of the major determinants of material type -
Answers - true
ceramic materials can be useful for biomedical applications because such materials are
- Answers - hard, high electrical resistivity, smooth, corrosion resistant
, what is the key difference btw bulk and diffusion flow - Answers - the cause of the
matter flow
what causes flow of matter by diffusion - Answers - concentration gradient
from a thermodynamic perspective, diffusion is driven by ___ - Answers - gibbs free
energy gradient
the gibbs free energy gradient is the primary driver of diffusion, but what is meant by
gibbs free energy gradient - Answers - maximum reversible work that can be done by a
system at constant T and P
the change in gibbs free energy is equal to the - Answers - work done by the system to
its surroundings minus the work of the pressure forces
materials engineers consider gibbs free energy to predict the direction of a reaction if
which two conditions are specified? - Answers - temperature, pressure
if the gibbs free energy of a process is determined to be positive, then the reaction
will___ - Answers - not occur spontaneously
what best describes an Arrhenius relationship - Answers - y=A exp(-B/KT)
how many experimental tests are needed to estimate the value of B in the arrhenius
relationship - Answers - 2
how can a materials engineer calculate the values of C and B in the arrhenius
relationship with 2 experiments - Answers - by taking the logs and plotting the results
WHat information is obtained by taking the log of both sides of the arrhenious
relationship and plotting the results - Answers - the value of C, the activation energy of
the system abbreviated by Q
the maxwell boltzman distribution specifies the ___ of finding a molecule at a particular
___ - Answers - probability, temperature
the form of the maxwell boltzman distribution follows an arrhenious relationship -
Answers - true
what fundamentally increases as temperature increases in the maxwell boltzman
distribution - Answers - larger number of particles are availible to overcome a given
energy barrier q
when a process can be described by an arrhenious relationship, if you know the
activation energym then you can find the ____ - Answers - process
