MMET 206 Exam #1 Questions and Answers | Latest Version | 2024/2025 | Rated A+
2 views 0 purchase
Course
MMET 206
Institution
MMET 206
MMET 206 Exam #1 Questions and
Answers | Latest Version | 2024/2025 |
Rated A+
What is the primary difference between ferrous and non-ferrous metals?
Ferrous metals contain iron, while non-ferrous metals do not.
What property of a material measures its ability to conduct heat?
Thermal c...
MMET 206 Exam #1 Questions and
Answers | Latest Version | 2024/2025 |
Rated A+
What is the primary difference between ferrous and non-ferrous metals?
✔✔Ferrous metals contain iron, while non-ferrous metals do not.
What property of a material measures its ability to conduct heat?
✔✔Thermal conductivity.
Why are polymers typically more flexible than metals?
✔✔Polymers have a molecular structure that allows them to bend without breaking due to long-
chain molecules and weaker intermolecular forces.
How does the hardness of a metal relate to its ductility?
✔✔Generally, higher hardness indicates lower ductility, as harder materials tend to be more
brittle.
What type of material is glass classified as in materials science?
1
,✔✔Glass is classified as a non-crystalline or amorphous solid.
Why is stainless steel resistant to corrosion?
✔✔It contains chromium, which forms a protective oxide layer on the surface.
What does the term “alloy” mean in the context of metals?
✔✔An alloy is a combination of two or more elements, where at least one is metal, that
improves properties such as strength and corrosion resistance.
What is meant by "toughness" in materials science?
✔✔Toughness is the ability of a material to absorb energy and deform without fracturing.
What is the primary purpose of using a composite material?
✔✔To combine materials with different properties to achieve superior strength, stiffness, or
weight reduction.
What is the main role of a heat treatment process in metals?
2
, ✔✔Heat treatment alters the internal structure of a metal, modifying its mechanical properties,
such as hardness and ductility.
Why do materials expand when heated?
✔✔Increased kinetic energy causes atoms to vibrate and occupy more space, leading to thermal
expansion.
What is the difference between elasticity and plasticity?
✔✔Elasticity is the ability of a material to return to its original shape after deformation, while
plasticity is the capacity to undergo permanent deformation without breaking.
How does increasing a metal’s grain size generally affect its strength?
✔✔Larger grain size typically reduces a metal’s strength but increases its ductility.
What test would you use to measure a material’s resistance to scratching or indentation?
✔✔A hardness test, such as the Rockwell or Brinell hardness test.
What property makes aluminum a popular choice in the aerospace industry?
3
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller SterlingScores. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.01. You're not tied to anything after your purchase.
