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Questions and Answers
What is the weak attractive force resulting from random polarization called?
What is the weak attractive force resulting from random polarization called?
- Dispersion effect (correct)
- Polarization effect
- Random effect
- Buffer effect
When a crystal is subjected to an external force and returns to its original shape when the load is removed, what type of deformation has occurred?
When a crystal is subjected to an external force and returns to its original shape when the load is removed, what type of deformation has occurred?
- Plastic deformation
- Axial deformation
- Elastic deformation (correct)
- Thermal deformation
What does the number and size of grains developed in a unit volume of metal depend on?
What does the number and size of grains developed in a unit volume of metal depend on?
- Grain-boundary sliding
- Polycrystals
- Grain boundaries
- Nucleation (correct)
What produces a rough surface appearance on sheet metals when large grains are present?
What produces a rough surface appearance on sheet metals when large grains are present?
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What happens to a specimen loaded beyond its ultimate tensile strength?
What happens to a specimen loaded beyond its ultimate tensile strength?
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