IMSE EXAM 1

Metal casting process tends to make parts with __________ structure.

• directional continuous grain flow

• isotropic grain

• sectioned grain flow

Both brass and bronze are alloys containing  __________ as their major metallic element(s).

• Copper

• Zinc

• Nickel

• Tin

Both steels and cast irons are iron-carbon alloys. Which one of the following is the major difference between the two?

• The carbon content in steels is lower than that in cast irons

• The yield strength of steels is lower than that of cast irons.

• The melting point of steels is lower than that of cast irons

Which material has a lower elastic modulus?

• A

• B

Which material has a lower tensile strength?

• A

• B

Tags

NGSS.HS-ETS1-3

Which material has a lower toughness?

• A

• B

Generally speaking, which one of the following casting processes is the most suitable to produce ferrous metal parts with high degree of shape complexity?

• Sand casting.

• Investment casting

• Die casting

In sheet metal bending, the metal is deformed __________.

• below its yield strength

• beyond its yield strength but below its tensile strength

• beyond its tensile strength

• beyond its tensile strength but below its yield strength

Which one of the following is NOT true related to the elevated recrystallization temperature in hot working?

• The effects of strain hardening are eliminated under this condition.

• The metallurgical grain structure will be isotropic under this condition.

• This condition may promote some undesired chemical reactions such as oxidation between the heated workpiece and the environment.

Tags

NGSS.HS-PS3-4

Pattern(s) are needed for all casting processes.

• True

• False