MEGR 2180 Test 1 Questions and Answers Already Passed
design considerations - Answers assembly, manufacturing, disassembly, recycling
Concurrent engineering - Answers design stages occur simultaneously rather than sequentially
"Reducing" Ore - Answers to pull the oxygen out of it
Grain - Answers a single crystal (group of unit cells) growing in a certain direction
Polycrystalline - Answers a solid, usually isotropic, of joined crystals or grains.
Angstrom (Å) - Answers .1 nanometer
Allotropic / Polymorphic - Answers an element able to exist in more than one physical form
(carbon, iron, titanium)
Isotropic - Answers identical values of a property in all crystallographic directions
Anisotropic - Answers exhibiting different mechanical properties in response to loads from
different directions
Point defect - Answers vacancy / interstitial, undersized / oversized
Deformation twinning - Answers lattice gliding
Properties affected by dislocations - Answers yield, fracture, conductivity
Creep - Answers slow longitudinal deformation
Grain Formation - Answers nucleation > grain growth > boundary formation
Cold Working - Answers recovery > recrystallization > grain growth
Material Properties - Answers strength, ductility, elasticity, hardness, fatigue, creep, toughness,
and fracture
Property Tests - Answers tensile, hardness, impact, temperature, fatigue
Instrol Machine - Answers calculates tensile strength
Ductility - Answers change in length or area, tested by tensile or impact
Toughness - Answers area under stress/strain curve, tested by impact
Hardness - Answers resistance to permanent indentation
Fatigue - Answers cyclical loading, 90% of metal failures
Hardness tests - Answers Vickers, rockwell, brinell, knoop, durometer, mohs
design considerations - Answers assembly, manufacturing, disassembly, recycling
Concurrent engineering - Answers design stages occur simultaneously rather than sequentially
"Reducing" Ore - Answers to pull the oxygen out of it
Grain - Answers a single crystal (group of unit cells) growing in a certain direction
Polycrystalline - Answers a solid, usually isotropic, of joined crystals or grains.
Angstrom (Å) - Answers .1 nanometer
Allotropic / Polymorphic - Answers an element able to exist in more than one physical form
(carbon, iron, titanium)
Isotropic - Answers identical values of a property in all crystallographic directions
Anisotropic - Answers exhibiting different mechanical properties in response to loads from
different directions
Point defect - Answers vacancy / interstitial, undersized / oversized
Deformation twinning - Answers lattice gliding
Properties affected by dislocations - Answers yield, fracture, conductivity
Creep - Answers slow longitudinal deformation
Grain Formation - Answers nucleation > grain growth > boundary formation
Cold Working - Answers recovery > recrystallization > grain growth
Material Properties - Answers strength, ductility, elasticity, hardness, fatigue, creep, toughness,
and fracture
Property Tests - Answers tensile, hardness, impact, temperature, fatigue
Instrol Machine - Answers calculates tensile strength
Ductility - Answers change in length or area, tested by tensile or impact
Toughness - Answers area under stress/strain curve, tested by impact
Hardness - Answers resistance to permanent indentation
Fatigue - Answers cyclical loading, 90% of metal failures
Hardness tests - Answers Vickers, rockwell, brinell, knoop, durometer, mohs
