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
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
