Exam 8: Metal Casting Processes

Which of the following are metals commonly cast in permanent mold casting (three best answers):

For which one of the following reasons is a green mold named:

Which one of the following casting metals is most important commercially:

Which of the following casting processes are expendable mold operations (four correct answers):

Which one of the following is the name of the casting process in which molten metal is poured into a rotating mold to produce a tubular part:

The expanded polystyrene casting process uses a mold of sand packed around a polystyrene foam pattern that vaporizes when the molten metal is poured into the mold:

Which of the following metals would typically be used in die casting (three best answers):

Which of the following casting processes are permanent mold operations (two correct answers):

An irregularity in the surface of the casting caused by erosion of the sand during pouring is called which one of the following sand casting defects:

Silica sand has which one of the following compositions:

Which of the following are advantages of die casting over sand casting (four best answers):

A misrun is which one of the following defects in casting:

Which of the following names are applied to a process in which a molten metal is poured into a heated lower die, and the upper die is closed to create the mold cavity only after solidification begins (two correct answers):

Shell molding is best described by which one of the following:

Investment casting is also known by which one of the following names:

In plaster mold casting, the mold is made of which one of the following materials:

Which one of the following casting processes is the most widely used:

Given that W_m = weight of the molten metal displaced by a core and W_c = weight of the core, the buoyancy force is which one of the following:

Which of the following qualifies as a precision-casting process (two correct answers):

Cupolas are furnaces used to melt which of the following metals (one best answer):