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MMET 206 Exam #1 Study Guide Questions and Answers 100% Pass

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MMET 206 Exam #1 Study Guide Questions and Answers 100% Pass Name the Elements Found in Polymers - ANSWER-Hydrogen, Carbon Name the Elements Found in Ceramics and Glasses - ANSWER-Boron, Carbon, Nitrogen, Oxygen, Aluminum, Silicon, Titanium, Zirconium, Tungsten Name the Elements Found in Semi...

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  • November 25, 2024
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MMET 206 Exam #1 Study Guide
Questions and Answers 100% Pass


Name the Elements Found in Polymers - ANSWER✔✔-Hydrogen, Carbon


Name the Elements Found in Ceramics and Glasses - ANSWER✔✔-Boron,

Carbon, Nitrogen, Oxygen, Aluminum, Silicon, Titanium, Zirconium,

Tungsten


Name the Elements Found in Semiconductors - ANSWER✔✔-Silicon


Define the embodied energy of a material - ANSWER✔✔-The energy

required to produce raw material from ores and feedstocks


Why recycle aluminum? - ANSWER✔✔-Using recycled aluminum requires

about 95% less energy


Why recycle steel? - ANSWER✔✔-Using recycled steel requires about 33%

less energy




Copyright ©EMILLYCHARLOTE 2025 ACADEMIC YEAR, ALL RIGHTS RESERVED. Page 1/32

,Presently, what fraction of new steel is made from recycled steel? -

ANSWER✔✔-2/3 of new steel is made from recycled steel today


What does RoHS stand for? - ANSWER✔✔-Restriction of Hazardous

Substances


Name the six substances restricted in electrical and electronic materials by

the European Union's RoHS. - ANSWER✔✔-Lead (Pb), Mercury (Hg),

Cadmium (Cd), Hexavalent Chromium (Cr+6), PBB, PBDE


Why recycle paper? - ANSWER✔✔-It requires 40% less energy


What is the problem about recycling paper? - ANSWER✔✔-Paper can only

be recycled a maximum of 8 times before the fibers become too weak


Why recycle plastic? - ANSWER✔✔-It requires 90% less energy


Why recycle glass? - ANSWER✔✔-It requires 30% less energy


Evolution of Engineering Materials Diagram: Around the time of the

Industrial Revolution, what was the most important material? Specify. -

ANSWER✔✔-Circa 1800, Metals were the most important material, with

cast iron and steels being widely used


Copyright ©EMILLYCHARLOTE 2025 ACADEMIC YEAR, ALL RIGHTS RESERVED. Page 2/32

,Evolution of Engineering Materials Diagram: Around what year did the

relative importance of metals peak? - ANSWER✔✔-In the year 1960, the

relative importance of metals was at its peak


Evolution of Engineering Materials Diagram: In the present day, what

materials are growing in importance? - ANSWER✔✔-Polymers and

elastomers, Composites, Ceramics and glasses


Give the Embodied Energy of Steels in Mega-joules per Kilogram -

ANSWER✔✔-29 MJ/Kg


Give the Embodied Energy of Aluminum Alloys in Mega-joules per

Kilogram - ANSWER✔✔-200 MJ/Kg


Give the Embodied Energy of Polyethylene in Mega-joules per Kilogram -

ANSWER✔✔-80 MJ/Kg


Give the Embodied Energy of Concrete in Mega-joules per Kilogram -

ANSWER✔✔-1.2 MJ/Kg


Give the approximate Embodied Energy of Device-Grade Silicon in Mega-

joules per Kilogram - ANSWER✔✔-Approximately 2000 MJ/Kg



Copyright ©EMILLYCHARLOTE 2025 ACADEMIC YEAR, ALL RIGHTS RESERVED. Page 3/32

, Give the Embodied Energy of Annealed Glass in Mega-joules per Kilogram

- ANSWER✔✔-Approximately 15 MJ/Kg


Give the Embodied Energy of CFRP in Mega-joules per Kilogram -

ANSWER✔✔-Approximately 275 MJ/Kg


Give the Embodied Energy of Carbon Steel in Mega-joules per Kilogram -

ANSWER✔✔-29 MJ/Kg


Give the Embodied Energy of PE in Mega-joules per Kilogram -

ANSWER✔✔-Approximately 85 MJ/Kg


Define Carbon Footprint - ANSWER✔✔-The total amount of greenhouse

gas emissions caused directly and indirectly by an individual, organization,

event, or product


To reduce carbon footprint... - ANSWER✔✔-Materials that have a lower

embodied energy must be chosen


What are greenhouse gases? - ANSWER✔✔-Gases that trap and hold heat

in the atmosphere and contribute to the greenhouse effect




Copyright ©EMILLYCHARLOTE 2025 ACADEMIC YEAR, ALL RIGHTS RESERVED. Page 4/32

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