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CSWA-S Multiple Choice Q- Extended Edition Latest Update Already Passed

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CSWA-S Multiple Choice Q- Extended Edition Latest Update Already Passed What does "elastic deformation" refer to in material science? - The permanent change in shape after the load is removed. - The temporary change in shape that returns to the original form after the load is removed. - The...

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  • September 11, 2024
  • 46
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • CSWA-S Multiple
  • CSWA-S Multiple
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CSWA-S Multiple Choice Q- Extended
Edition Latest Update Already Passed

What does "elastic deformation" refer to in material science?

- The permanent change in shape after the load is removed.


- ✔✔ The temporary change in shape that returns to the original form after the load is removed.


- The change in color of the material when stressed.

- The change in temperature of the material under load.




Which type of stress analysis would you use to examine how a material behaves under cyclic

loading?

- Thermal stress analysis


- ✔✔ Fatigue stress analysis


- Static stress analysis

- Vibration stress analysis




What does "plastic deformation" mean in material testing?


- ✔✔ Permanent change in shape after the material has been stressed beyond its elastic limit.


- Temporary change in shape that returns to the original form.

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,- Change in the color of the material under stress.

- The change in density of the material after loading.




How is "strain energy" useful in material analysis?

- To measure the thermal expansion of materials.


- ✔✔ To quantify the energy stored in a material due to deformation.


- To determine the material’s electrical conductivity.

- To calculate the weight of the material.




What does "yield strength" indicate in material testing?

- The maximum temperature the material can withstand.

- The material's resistance to corrosion.


- ✔✔ The stress at which a material begins to deform plastically.


- The amount of force needed to break the material.




How is "Modulus of Resilience" calculated and used?

- It measures the density of the material.

- It calculates the maximum amount of plastic deformation before failure.


2

,- ✔✔ It is calculated as the area under the stress-strain curve up to the yield point and indicates

the material's ability to absorb energy without permanent deformation.

- It measures the rate of thermal expansion of the material.




What is the role of "contact stress" in simulations?

- To measure the weight of the parts in contact.


- ✔✔ To analyze the stress distribution at the points where parts make contact with each other.


- To determine the color of the contact surfaces.

- To measure the temperature at the contact points.




What does the term "creep" refer to in material science?

- The immediate deformation of a material when subjected to a load.

- The change in color over time due to stress.


- ✔✔ The slow, continuous deformation of a material under constant stress over a long period.


- The increase in material density due to prolonged stress.




What is the purpose of the "strain gauge" in material testing?

- To measure the temperature of the material.


3

, - To assess the color change of the material under stress.


- ✔✔ To measure the amount of deformation or strain experienced by a material.


- To calculate the weight of the material.




What does "factor of safety" refer to in engineering design?

- The ratio of the material’s weight to its strength.

- The amount of thermal expansion a material can handle.


- ✔✔ The ratio of the maximum stress a material can withstand to the stress it is actually

subjected to, providing a margin for safety.

- The amount of deformation that is acceptable during use.




How does "thermal stress" impact a material in simulations?

- It measures the color change due to temperature.


- ✔✔ It evaluates the stress caused by changes in temperature, which can lead to expansion or

contraction of the material.

- It calculates the material’s weight under different temperatures.

- It assesses the deformation due to external forces.




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