Properties of Metals Quiz
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Question 1 of 10
1. Question
1. Which is not a type of stress?
Hint
- Residual Stresses
- Structural Stresses
- Pressure Stresses
- Flow Stresses
- Thermal Stresses
- Fatigue Stresses
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Question 2 of 10
2. Question
2. The type of strain in which a dimensional change does not disappear when the initiating stress is removed.
Hint
Plastic deformation is a dimensional change that does not disappear when the initiating stress is removed. It is usually accompanied by some elastic strain.
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Question 3 of 10
3. Question
3. True or False. Hooke´s Law is the ratio of stress to strain, or also the gradient of the stress-strain graph.
Hint
False
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Question 4 of 10
4. Question
4. True or False. Shear Modulus of Elasticity is derived from the torsion of a cylindrical test piece.
Hint
True. Shear Modulus of Elasticity is derived from the torsion of a cylindrical test piece.
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Question 5 of 10
5. Question
5. Ductility is more commonly defined,
Hint
Ductility is more commonly defined as the ability of a material to deform easily upon the application of a tensile force.
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Question 6 of 10
6. Question
6. True or False. In concentrations of less than 5%, nickel will raise the toughness and ductility of steel without raising the hardness.
Hint
True. In concentrations of less than 5%, nickel will raise the toughness and ductility of steel without raising the hardness.
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Question 7 of 10
7. Question
7. True or False. Hardness and tensile strength decrease and toughness and ductility increase in heat-treated steel.
Hint
False
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Question 8 of 10
8. Question
8. Annealing is performed to,
Hint
- to soften the steel and improve ductility
- to relieve internal stresses caused by previous processes such as heat treatment, welding, or machining
- to refine the grain structure
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Question 9 of 10
9. Question
9. Galvanic corrosion occurs when,
Hint
Galvanic corrosion occurs when two dissimilar metals with different potentials are placed in electrical contact in an electrolyte.
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Question 10 of 10
10. Question
10. True or False. Stress-corrosion cracking occurs at grain boundaries under tensile stress.
Hint
True. Stress-corrosion cracking occurs at grain boundaries under tensile stress.