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MSE 250 QUIZ 1 QUESTIONS WITH CORRECT ANSWERS LATEST UPDATE 2025/2026

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MSE 250 QUIZ 1 QUESTIONS WITH CORRECT ANSWERS LATEST UPDATE 2025/2026 Proportional/Elastic limit - Answers Stress and strain values at the end of the linear elastic region (straight part on curve) Yield Strength - Answers Stress at plastic strain offset of 0.002 Tensile strength - Answers Maximum stress of the engineering curve (Maximum point on graph) (where necking starts to appear) Ductility - Answers Measure for deformation of the plastic (end point on the curve) Resistance to fracture - Answers High to low 1. Metals 2. Composites 3. Ceramics 4. Polymers Elastic: Resilience - Answers what energy can be stored Elastic and plastic: Toughness - Answers what energy can be stored in elastic and plastic True stress - Answers force/current area True strain - Answers natural log of L sub i over L sub o Hardness - Answers • Resistance to localized plastic deformation • Resistance to denting, scratching, abrasion, cutting • Resistance to permanent deformation when load is applied Vickers Micro indentation - Answers • Small loads applied to micrometer sized areas provide a measure of non - homogeneity • A well-polished surface is needed for accurate measurement • HRC- diamond cone • HRB - 1/16" diameter steel ball Crystalline materials - Answers atoms pack in periodic 3D repewated arrays in long range order Non-Crystalline materials - Answers no long range periodic packing, some sort of range orde

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Institution
MSE 250
Course
MSE 250

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MSE 250 QUIZ 1 QUESTIONS WITH CORRECT ANSWERS LATEST UPDATE 2025/2026

Proportional/Elastic limit - Answers Stress and strain values at the end of the linear elastic
region (straight part on curve)

Yield Strength - Answers Stress at plastic strain offset of 0.002

Tensile strength - Answers Maximum stress of the engineering curve (Maximum point on graph)
(where necking starts to appear)

Ductility - Answers Measure for deformation of the plastic (end point on the curve)

Resistance to fracture - Answers High to low

1. Metals

2. Composites

3. Ceramics

4. Polymers

Elastic: Resilience - Answers what energy can be stored

Elastic and plastic: Toughness - Answers what energy can be stored in elastic and plastic

True stress - Answers force/current area

True strain - Answers natural log of L sub i over L sub o

Hardness - Answers • Resistance to localized plastic deformation

• Resistance to denting, scratching, abrasion, cutting

• Resistance to permanent deformation when load is applied

Vickers Micro indentation - Answers • Small loads applied to micrometer sized areas provide a
measure of non - homogeneity

• A well-polished surface is needed for accurate measurement

• HRC- diamond cone

• HRB - 1/16" diameter steel ball

Crystalline materials - Answers atoms pack in periodic 3D repewated arrays in long range order

Non-Crystalline materials - Answers no long range periodic packing, some sort of range order,
amorphous

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