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WorksheetsChapter 11 - Casting Processes
Total questions: 16
Worksheet time: 12mins
Which one of the following casting processes is the most widely used
centrifugal casting
die casting
investment casting
sand casting
shell casting
In sand casting, the volumetric size of the pattern is________the cast part
bigger than
same size as
smaller than
Silica sand has which one of the following compositions
Al₂O₃
SiO
SiO₂
SiSO₄
For which one of the following reasons is a green mold named
green is the color of the mold
moisture is contained in the mold
mold is cured
mold is dry
Given that Wₘ = weight of the molten metal displaced by a core and Wc = weight of the core, the buoyancy force is which one of the following
downward force = Wₘ + Wc
downward force = Wₘ - Wc
upward force = Wₘ + Wc
upward force = Wₘ - Wc
Which of the following casting processes are expendable mold operations (four correct answers)
centrifugal casting
shell molding
investment casting
sand casting
vacuum molding
Shell molding is best described by which one of the following
casting operation in which the molten metal has been poured out after a thin shell has been solidified in the mold
casting process in which the mold is a thin shell of sand bonded by a thermosetting resin
sand-casting operation in which the pattern is a shell rather than a solid form
casting operation used to make artificial sea shells
Investment casting is also known by which one of the following names
fast-payback molding
full-mold process
lost-foam process
lost-pattern process
lost-wax process
In plaster mold casting, the mold is made of which one of the following materials
Al₂O₃
CaSO₄·H₂O
SiC
SiO₂
Which of the following qualifies as a precision-casting process (two correct answers)
ingot casting
investment casting
plaster-mold casting
sand casting
shell molding
Which of the following casting processes are permanent mold operations (three correct answers)
centrifugal casting
die casting
expanded polystyrene process
sand casting
slush casting
Which of the following metals would typically be used in die casting (three best answers)
aluminum
cast iron
steel
tin
zinc
Cupolas are furnaces used to melt which of the following metals
aluminum
cast iron
steel
zinc
A misrun is which one of the following defects in casting
globules of metal becoming entrapped in the casting
metal is not properly poured into the downsprue
metal solidifies before filling the cavity
microporosity
"pipe" formation
Which of the following are advantages of die casting over sand casting (four best answers)
better surface finish
closer tolerances
higher production rates
larger parts can be cast
mold can be reused
Which one of the following casting metals is most important commercially
aluminum and its alloys
bronze
cast iron
cast steel
zinc alloys
