GEAS_Quiz (Mat Sci)

What refers to the removal of zinc from brasses?
Stabilization
Graphitization
Dezincification
Dealloying
The electrical resistance of stainless steels can be as much as ______ time that of carbon steel.
5
6
10
15
What term is used to describe a polymer that has rubberlike properties?
Vulcanizer
Polychloroprene
Elasticmer
Elastomer
Property of some pure metals and their alloys at extremely low temperatures of having negligible to the flow of an electric current is called
Supercharging
Superfluidity
Supercooling
Superconductivity
Cobalt is an example of a ______ material.
Diamagnetic
Paramagnetic
Ferromagnetic
magnetic
The region of the stress-strain curve extending from the proportional limit to the point of rupture is called
Rigid range
Malleable range
Elastic range
Plastic range
Defined as the ratio of the ultimate strength to the specific weight
Specific strength
Specific rigidity
Specific modulus
Specific gravity
Steel has a modulus of elasticity of _______ MPa.
200
2,000
20,000
200,000
Why is the strain the fundamental property but not the stress?
Because it is dimensionless
Because it is a ratio
Because its value is calculated in laboratory
No stress is the fundamental property
Which law is also called as the elasticity law?
Bernoulli's law
Stress law
Hooke's law
Poisson's law
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