MMET 207 Final Review Questions and Answers | Latest Update | 2024/2025 | Graded A+
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Course
MMET 207
Institution
MMET 207
MMET 207 Final Review Questions and
Answers | Latest Update | 2024/2025 |
Graded A+
What is the primary purpose of using a micrometer in a mechanical lab?
A micrometer is used to measure small dimensions with high precision, typically within a
range of millimeters or fractions of an inch.
...
appearance, contributing to the longevity and functionality of parts.
What is the impact of alloying elements on the properties of steel?
✔✔Alloying elements can enhance strength, hardness, and corrosion resistance, allowing
engineers to tailor steel for specific applications.
How does heat treatment affect the hardness of steel?
✔✔Heat treatment processes, such as quenching and tempering, alter the microstructure of steel,
resulting in increased hardness and strength.
3
, What are the main considerations when selecting a material for a specific engineering
application?
✔✔Considerations include mechanical properties, thermal properties, corrosion resistance, cost,
and availability, ensuring the material meets performance requirements.
What is the purpose of non-destructive testing (NDT) in materials inspection?
✔✔NDT methods evaluate material integrity without causing damage, allowing for the detection
of flaws and ensuring safety in critical components.
Why is it essential to control the cooling rate during metal casting?
✔✔Controlling the cooling rate prevents defects such as cracking and distortion, ensuring the
final casting meets design specifications and quality standards.
How do polymers differ from metals in terms of mechanical properties?
✔✔Polymers typically exhibit lower strength and stiffness compared to metals but can provide
better flexibility and resistance to corrosion.
What is the significance of the elastic modulus in material science?
4
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