Quiz 7

Which one of the following effects is NOT associated with casting? A: Shrinkage. B: Strain-hardening. C: Melting. D: Solidification.

B

Which one of the following is NOT a distinct advantage of casting as a material processing means over the others? A: Complex shape B: Superb surface finish C: Very large parts D: Difficult-to-machine parts

B

A part made by sand casting, in order to be easily removed from the mold, a _____ draft has to be designed. A: positive B: negative

A

In a two-part sand casting system, the top part is called a _____ and the bottom part is call a _____. A: cope, drag B: drag, cope C: flask, drag D: cope, flask

A

Which one of the following categories does the casting process Benjamin Martin (stared by Mel Gibson) was using belong to? A: Expendable mold/Reusable pattern B: Expendable mold/Expendable pattern C: Permanent mold/No pattern

A

Which one is the newest member as the five basic material processing families? A: Casting B: Additive manufacturing C: Forming D: Machining E: Joining

B

Which one of the following statements regarding investment casting is FALSE? A: Investment casting is a complex process and tends to be rather expensive. B: Investment casting can produce very large parts. C: Extremely complex shapes can be cast as a single piece. D: Patterns are always needed in investment casting.

B

Casting is used for __________ A: prototyping B: mass production C: both prototyping and mass production

C

The size of a pattern is __________________ the size of the part to be cast. smaller than A: smaller than B: the same as C: larger than

C

Which one of the following statements regarding sand casting is FALSE? A: Sand casting is the most popular of the casting processes. B: Sand casting can produce very large parts. C: The dimension precision is the best among all casting processes. D: Patterns are always needed in sand casting.

C

Which one of the following statements regarding die casting is FALSE? A: Die casting dies are usually made from tool steels and tend to be rather expensive. B: In die casting, to permit removal of the casting, the dies must open, separating into at least two pieces. C: Die casting can typically produce parts with excellent dimensional precision and surface qualities. D: Patterns are always needed in die casting.

D