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16 Cards in this Set
- Front
- Back
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which form of iron contains essentially no carbon? a. wrought iron b. cast iron c. steel d. none of the above. |
a. wrought iron |
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which form of iron contains more than 2% carbon? a. slag b. cast iron c. wrought iron d. steel |
b. cast iron |
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which form of iron contains more then 0% but less then 2% carbon? a. wrought iron b. steel c. slag d. cast iron |
b. steel |
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why are alloys added to steel? a. to make it stronger b. to make it harder c. to give it better wear resistance d. all of the above |
d. all of the above |
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in 8660 steel, the numerals "86" refer to which of the following? a. the percentage of carbon b. the percentage of iron c. the alloy content d. the recommended heat-treating temperature |
c. the alloy content |
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in 1018 steel, the numerals "18" refer to which of the following? a. the percentage of carbon b. the percentage of iron c. the alloy content d. the recommended heat-treating temperature |
a. the percentage of carbon |
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approximately what percentage of carbon is in low-carbon steel? a. 0.05% - 0.35% b. 0.50% - 1.0% c. 1.05% - 1.35% d. 2.0% - 3.0% |
a. 0.05% - 0.35% |
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which of the following types of steel is generally the strongest? low-carbon medium-carbon high-carbon all are approximately equal in strength |
high-carbon |
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which of the following has the highest degree of elasticity? cast iron medium-carbon steel high-carbon steel spring steel |
spring steel |
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maraging steel contains an unusual large amount of which alloy? columbium nickel titanium zircomium |
nickel |
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which of the following types of tool steel would most likely be used in forging A7 W5 T7 H22 |
H22 |
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which of the following types of tool steel would be used in high-speed cutting operation M7 W5 H14 D3 |
M7 |
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which type of cast iron is the most widely used ductile gray malleable white |
gray |
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which of the following type of cast iron is the most ductile? white gray malleable all are approximately equal in ductility |
malleable |
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_____ cast iron is also know as nodular iron ductile gray malleable all of the above |
ductile |
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when compared to steel and cast iron, wrought iron has __________. higher strength greater hardness a higher carbon content lower ductility |
lower ductility |
