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EDMM 1500 Exam 2 WMU Questions with Correct
Answers | Updated (100% Correct Answers)
Which casting process would have the lowest tooling cost? Answer: green sand
Casting Answer: manufacturing process in which a liquid material is usually
poured into a mold, which contains a hollow cavity of the desired shape, and
then allowed to solidify
Expendable mold reusable casting Answer: casting method where clay bonds
sand around reusable patterns to form a mold
porosity Answer: occurs when liquid metal can't reach sections of the metal
casting where solidification is occurring
In the casting process shrinkage causes porosity
Problem that hydrogen(gas) solubility causes in Aluminum castings
What materials can castings be made out of? Answer: metal alloys, plastics,
gases and ceramics
spure Answer: in the casting process the canal molten metal is poured through
that is located at the point where both halves of the mold unite. While also
helping collect unwanted sand at the end
riser Answer: source of liquid metal that attaches to casting to compensate for
shrinkage by feeding extra material into the casting
reduces porosity
© 2026 All rights reserved
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pattern Answer: a full size model of the part that makes an impression in the
sand mold
core Answer: sand shape inserted into the mold to shape the casting interior
drag Answer: the lower half of the mold that is filled with sand first is called?
cope Answer: the upper half of the mold that contains the pattern and core is
called what?
three types of molten metal flow Answer: gentle: minimizes gas and sand
entrapment
rapid: to prevent freezing before filling
diversionary: to skim off or filter slag and contaminants
three types of solidification grain structures Answer: pure metals: columnar zone
structure
most alloys have equiaxed zone structure with columns on outside
controlled nucleation: equiaxed structure all the way through; provides lots of
spots for crystals to start forming
what causes porosity in a casting? Answer: shrinkage during
freezing/solidification (solid occupies less volume than liquid)
shell molding Answer: an expendable mold casting process that uses a resin
covered sand to form the mold
© 2026 All rights reserved
EDMM 1500 Exam 2 WMU Questions with Correct
Answers | Updated (100% Correct Answers)
Which casting process would have the lowest tooling cost? Answer: green sand
Casting Answer: manufacturing process in which a liquid material is usually
poured into a mold, which contains a hollow cavity of the desired shape, and
then allowed to solidify
Expendable mold reusable casting Answer: casting method where clay bonds
sand around reusable patterns to form a mold
porosity Answer: occurs when liquid metal can't reach sections of the metal
casting where solidification is occurring
In the casting process shrinkage causes porosity
Problem that hydrogen(gas) solubility causes in Aluminum castings
What materials can castings be made out of? Answer: metal alloys, plastics,
gases and ceramics
spure Answer: in the casting process the canal molten metal is poured through
that is located at the point where both halves of the mold unite. While also
helping collect unwanted sand at the end
riser Answer: source of liquid metal that attaches to casting to compensate for
shrinkage by feeding extra material into the casting
reduces porosity
© 2026 All rights reserved
, 2
pattern Answer: a full size model of the part that makes an impression in the
sand mold
core Answer: sand shape inserted into the mold to shape the casting interior
drag Answer: the lower half of the mold that is filled with sand first is called?
cope Answer: the upper half of the mold that contains the pattern and core is
called what?
three types of molten metal flow Answer: gentle: minimizes gas and sand
entrapment
rapid: to prevent freezing before filling
diversionary: to skim off or filter slag and contaminants
three types of solidification grain structures Answer: pure metals: columnar zone
structure
most alloys have equiaxed zone structure with columns on outside
controlled nucleation: equiaxed structure all the way through; provides lots of
spots for crystals to start forming
what causes porosity in a casting? Answer: shrinkage during
freezing/solidification (solid occupies less volume than liquid)
shell molding Answer: an expendable mold casting process that uses a resin
covered sand to form the mold
© 2026 All rights reserved
