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MatSe Unit 1 Exam with complete solutions 2024_2025
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MatSe Unit 1 Exam with complete solutions 2024_2025
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MatSe Unit 1 Exam with completesolutions 2024/2025
What are the number of conditions needed for the Neolithic
revolution? - ANSWER✓✓-3; hunter/gatherer population increase,
food production in marginal areas, and several communities at
similar stages of development
What are the old-world primary civilizations? - ANSWER✓✓-Nile
Valley, Mesopotamia, Xia/Shang, Indus Valley
What do biomaterials do? - ANSWER✓✓-Implanted in the body
Hard, brittle, have low thermal conductivity and can be opaque,
translucent, or transparent. - ANSWER✓✓-ceramics
Which materials are strong and have highest density? - ANSWER✓✓-
metals
Which materials are compounds between metallic and nonmetallic
elements, most frequently being oxides, nitrides, and carbides? -
ANSWER✓✓-ceramics
You are handed an opaque rod. In the lab you pull on the ends of
the rod. It takes a lot of force for it to stretch. When stretched it
forms a wire that conducts heat well. What class of material is this?
- ANSWER✓✓-metal
Which material has electrical properties between electrical
conductors and insulators? - ANSWER✓✓-semiconductors
, These materials are able to sense changes in their environment and
then respond in predetermined manners, traits also found in living
organisms. - ANSWER✓✓-smart materials
What do smart materials do? - ANSWER✓✓-Mimic biological behavior
and respond to stimuli.
What is obsidian? - ANSWER✓✓-a naturally occurring glass
What class of materials is a mudbrick? - ANSWER✓✓-composite
Which materials are hard and possess the lowest electrical
conductivity? - ANSWER✓✓-polymers
To minimize product cost, materials engineers must take into
account: - ANSWER✓✓-component design, materials used, and
manufacturing processes.
What is the estimated fraction of total energy used in the
production and manufacturing of materials by the manufacturing
industry in the United States? - ANSWER✓✓-1/2
What is recyclability? - ANSWER✓✓-a material, after completing its
life cycle in one component, could be reprocessed, could reenter the
materials cycle, and could be reused in another component
According to the course reading, the ability to maintain an
acceptable lifestyle at the currentlevel and into the future while
preserving the existing environment is: - ANSWER✓✓-sustainability
According to the course reading, this is one green design principle. -
ANSWER✓✓-If your process operates above room temperature, then
change the process to operate at atemperature closer to room
temperature.
Which of the following statements best describes glass? -
ANSWER✓✓-not biodegradable, relatively inert, recyclable, ceramic
consumed in greatest quantity by consumers
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