q3sum03 - c. both curves (a ) 7. A comparison between the...

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Home Introduction Policies Resources Requirements & Grading Syllabus Assignments Handouts Discussion Web Links Distance Learners Contact MSE 200 Quiz 3 1. All materials under service are designed to be loaded
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a. below the UTS b. below yield strength c. below fracture strength (b ) 2. Engineers use the engineering stress-strain curve because a. engineering stress is the correct value of stress b. true stress is the correct value of stress c. engineering stress is almost the same as true stress for applications in design (c ) 3. Plastic deformation behavior of a material is well understood by using a. engineering stress-strain curve b. true stress-strain curve c. either of the stress-strain curves (b ) 4. Yield strength is a. microstructure sensitive b. microstructure insensitive c. independent of temperature (a ) 5. Experimentally observed value of critical resolved shear stress compared to the (theoretically) calculated value is a. equal b. lower c. higher (b ) 6. The maximum in the stress-strain curve is observed in the a. engineering stress-strain curve b. true stress-strain curve
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Unformatted text preview: c. both curves (a ) 7. A comparison between the ferrous and nonferrous materials for design is made possible by use of a. UTS b. 0.2% offset yield strength c. fracture strength (b ) 8. The area under the stress-strain curve is a. energy absorbed per unit area of the sample b. energy absorbed in the sample to failure c. energy absorbed per unit volume of the sample to failure (c ) 9. Hardness is a measure of the a. work hardening behavior of the material b. ductility of the material c. toughness of the material (a ) 10. Hardness is the value of load divided by a. area of contact of the indenter with sample b. projected area of contact of the indenter c. depth of penetration of indenter (b ) 11. A preload is applied in all the hardness tests to a. remove the statistical variation of observed hardness b. make more meaning to hardness measurements to wear resistance c. remove the effects of surface contamination (c )...
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q3sum03 - c. both curves (a ) 7. A comparison between the...

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