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IMSE 250 EXAM 1 COMPLETE QUESTIONS AND 100% CORRECT ANSWERS

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IMSE 250 EXAM 1 COMPLETE QUESTIONS AND 100% CORRECT ANSWERS .4 engineering materials - ANSWERS-metals ceramics composites plastics .iron and steel carbon contents - ANSWERS-steels- less than 2% carbon cast iron- more than 2% carbon .brass is ______ and ______ - ANSWERS-copper and zinc (non-ferrous alloy) .bronze is ______ and ______ - ANSWERS-copper and tin (non-ferrous alloy) .body centered has higher ____ while face centered has higher____ (crystalline structures) - ANSWERS-BCC- strength FCC- ductility .physical vs mechanical properties - ANSWERS-phys- distinguish one material from another, important for selecting a material mechanical- how a material will respond to an added force .tensile test units- pressure - ANSWERS-pascals or PSI .tensile test units- strain - ANSWERS-unitless .two stages od deformation - ANSWERS-elastic- reverts back to original shape after applying force plastic- when the force is no longer applied. object does not go back to original shape .elastic modulus - ANSWERS-inherent trait- not easily changed measures stiffness diagonal line at beginning of graph .yield strength (strong or not) - ANSWERS-stress value where additional strain occurs without further increase in stress greatly affected by processing .ultimate tensile strength - ANSWERS-breaking point highest point on graph

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IMSE 250 EXAM 1 COMPLETE
QUESTIONS AND 100% CORRECT
ANSWERS



\.4 engineering materials - ANSWERS✔-metals
ceramics
composites
plastics



\.iron and steel carbon contents - ANSWERS✔-steels- less than 2% carbon

cast iron- more than 2% carbon



\.brass is ______ and ______ - ANSWERS✔-copper and zinc
(non-ferrous alloy)



\.bronze is ______ and ______ - ANSWERS✔-copper and tin

(non-ferrous alloy)


\.body centered has higher ____ while face centered has higher____

(crystalline structures) - ANSWERS✔-BCC- strength
FCC- ductility

, \.physical vs mechanical properties - ANSWERS✔-phys- distinguish one material
from another, important for selecting a material
mechanical- how a material will respond to an added force



\.tensile test units- pressure - ANSWERS✔-pascals or PSI



\.tensile test units- strain - ANSWERS✔-unitless



\.two stages od deformation - ANSWERS✔-elastic- reverts back to original shape
after applying force
plastic- when the force is no longer applied. object does not go back to original
shape



\.elastic modulus - ANSWERS✔-inherent trait- not easily changed

measures stiffness
diagonal line at beginning of graph



\.yield strength (strong or not) - ANSWERS✔-stress value where additional strain
occurs without further increase in stress
greatly affected by processing



\.ultimate tensile strength - ANSWERS✔-breaking point

highest point on graph

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