Why Should Molten Wax Application onto Dies Be Accomplished Slowly

question 73

Multiple Choice

Why should molten wax application onto dies be accomplished slowly and in thin layers when creating a casting pattern?

• A)Careful use minimizes porosity
• B)This promotes wetting of the wax on the dies
• C)This avoids distortion from thermal contraction during wax cooling
• D)This has a tendency to sag because of low modulus
• E)This has susceptibility to water absorption

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Definitions:

Gene Mutation

Altered gene whose sequence of bases differs from the original sequence.

Founder Effect

A genetic phenomenon that occurs when a new population is established by a very small number of individuals, leading to a reduced genetic diversity.

Industrial Melanism

A phenomenon in which darker forms of species evolve in polluted environments, typically as a result of higher survival rate against predation.

Microevolution

Change in gene frequencies between populations of a species over time.