What refers to the tendency for polymers and molecular materials to form with an ordered, spatial, three-dimensional arrangement of monomer molecules?
AStereospecificity
BConductivity
CRetentivity
DSpatial configuration
ESAS · Question Bank
Engineering Materials
241 of 241 questions match · page 3 of 13. Answer in your head first, then check the solution.
What is the amount of energy required to fracture a given volume of material?
AImpact strength
BEndurance limit
CCreep strength
DStress rupture strength
What mechanical property of a material which is a time-dependent permanent strain under stress?
AElongation
BElasticity
CCreep
DRupture
What refers to the stress at which a material exhibits a specified deviation from proportionality of stress and strain?
ATensile strength
BShear strength
CYield strength
DFlexural strength
The greatest stress which a material is capable of withstanding without a deviation from acceptable of stress to strain is called _________
Aelongation
Bproportional limit
Cyield point
Delastic limit
What is the maximum stress below which a material can theoretically endure an infinite number of stress cycles?
AEndurance state
BEndurance test
CEndurance limit
DEndurance strength
What is defined by ASTM as a material that contains as an essential ingredient an organic substance of large molecular weight, is solid in its finished state, and at some stage in its manufactured or in its processing into finished articles, can be shaped by flow?
AMetal
BMetalloid
CPlastic
DCeramic
Some polymeric materials such as epoxies are formed by strong primary chemical bonds called _________
AMetallic bond
BVan der Waals bond
CCross linking
DCovalent method
What do you call a polymer without additives and without blending with another polymer?
AHomopolymer
BEthenic polymer
CPolyethylene
DCopolymer
A large molecule with two alternating mers is called as _______
Amonomer
Belastomer
Cmers
Dcopolymer or interpolymer
What term is used to describe a polymer that has rubberlike properties?
AVulcanizer
BElasticmer
CPolychlorophene
DElastomer
What is defined as an alloy of iron and carbon, with the carbon being restricted within certain concentration limits?
ASteel
BWrought iron
CCast iron
DTendons
What is the most popular steel refining process or technique which involves casting of steel from the BOF or electric furnace into cylindrical ingots?
AVacuum arc remelting (VAR)
BVacuum induction melting (VIM)
CElectron beam refining
DElectroslag refining
In what special refining process of steel where molten metal is poured down a tundish (chute) into an ingot mold?
AElectroslag refining
BVacuum arc remelting
CVacuum induction melting
DElectron beam refining
What type of steel has carbon as its principal hardening agent?
AAlloy steel
BStainless steel
CGalvanized steel
DCarbon steel
What type of steel has 0.8% carbon and 100% pearlite?
AAustenite
BEutectoid
CHyper-eutectoid
DStainless steel
What group of steels are water-hardened tool steels?
AGroup S
BGroup W
CGroup O
DGroup T
What group of steels are molybdenum high-speed steels?
AGroup A
BGroup D
CGroup M
DGroup H
Steels that are used for axles, gears, and similar parts requiring medium to high hardness and high strength are known as?
AMedium-carbon steel
BLow-carbon steel
CVery high-carbon steel
DHigh-carbon steel
Galvanized steel are steel products coated with _________
Acarbon
Bsulfur
Czinc
Dnickel