MMET 201 Final Exam Questions and Answers | Latest Version | 2024/2025 | Rated A+
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Course
MMET 201
Institution
MMET 201
MMET 201 Final Exam Questions and
Answers | Latest Version | 2024/2025 |
Rated A+
What is the purpose of conducting a failure analysis on mechanical components?
The purpose of conducting a failure analysis is to identify the root causes of failure, improve
future designs, and enhance the r...
MMET 201 Final Exam Questions and
Answers | Latest Version | 2024/2025 |
Rated A+
What is the purpose of conducting a failure analysis on mechanical components?
✔✔The purpose of conducting a failure analysis is to identify the root causes of failure, improve
future designs, and enhance the reliability and safety of components.
How do thermal expansion and contraction affect engineering designs?
✔✔Thermal expansion and contraction can lead to dimensional changes in materials, which
engineers must account for to prevent structural failures or misalignments in assemblies.
What role do additive manufacturing techniques play in modern engineering?
✔✔Additive manufacturing techniques allow for the creation of complex geometries and
customized products with less waste and reduced lead times compared to traditional methods.
How can reverse engineering be beneficial in product development?
✔✔Reverse engineering can provide insights into competitors' products, help in the redesign of
components, and facilitate improvements in functionality and cost-effectiveness.
1
,What factors must be considered when designing a mechanical system for high temperatures?
✔✔Factors to consider include material selection, thermal expansion properties, insulation, and
potential changes in mechanical properties at elevated temperatures.
How does fatigue testing contribute to material selection?
✔✔Fatigue testing helps determine a material's durability under cyclic loading, ensuring that
selected materials can withstand operational conditions without failure over time.
What is the role of finite element analysis (FEA) in mechanical engineering?
✔✔Finite element analysis is used to predict how components respond to forces, vibrations, and
heat, allowing engineers to optimize designs before manufacturing.
What are the advantages of using composite materials in engineering applications?
✔✔Composite materials offer high strength-to-weight ratios, corrosion resistance, and the ability
to be tailored for specific applications, making them ideal for aerospace and automotive
industries.
How does lubrication affect the performance of mechanical systems?
2
,✔✔Lubrication reduces friction between moving parts, minimizes wear, and can help dissipate
heat, ultimately enhancing the efficiency and lifespan of mechanical systems.
What is the importance of safety standards in engineering design?
✔✔Safety standards ensure that products and processes are designed to minimize risks to users
and the environment, promoting public health and safety.
What methods can engineers use to minimize noise pollution in mechanical systems?
✔✔Engineers can use methods such as sound insulation, vibration damping materials, and
strategic design modifications to minimize noise pollution.
What role does prototyping play in the design process?
✔✔Prototyping allows engineers to test and validate design concepts, gather user feedback, and
identify potential issues before full-scale production.
What is the significance of sustainability in modern engineering practices?
✔✔Sustainability in engineering practices aims to reduce environmental impact, conserve
resources, and create solutions that are viable for future generations.
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, What principle explains why metals are good conductors of electricity?
✔✔The principle that explains this is the presence of free electrons in metals, which can move
easily and carry electrical current.
How does the addition of alloying elements change the properties of a metal?
✔✔The addition of alloying elements can improve characteristics such as strength, corrosion
resistance, and hardness, allowing for tailored material properties.
What is the significance of the Mohs scale in material science?
✔✔The Mohs scale is significant because it provides a comparative measure of the hardness of
different minerals, helping to classify materials based on their scratch resistance.
What role does ergonomics play in product design?
✔✔Ergonomics plays a crucial role in product design by focusing on user comfort and
efficiency, ensuring that products are designed to fit human capabilities and limitations.
What are the environmental impacts of 3D printing technology?
✔✔The environmental impacts of 3D printing include potential reductions in material waste, but
concerns also arise from energy consumption and the recyclability of printed materials.
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