Like nitinol, steel is an alloy. Steel is mainly a mixture of iron and other elements, and is commonly used in frames for large buildings.Which statements best explain why steel alloys are more often used than iron metal in large building frames?Select the two correct answers.AIron can be easily shaped and bent.BAdding other elements to iron increases its strength.CThe physical properties of steel and iron are nearly identical.DSteel contains more than one element.EThe properties of steel can be changed.
Question
Like nitinol, steel is an alloy. Steel is mainly a mixture of iron and other elements, and is commonly used in frames for large buildings.Which statements best explain why steel alloys are more often used than iron metal in large building frames?Select the two correct answers.AIron can be easily shaped and bent.BAdding other elements to iron increases its strength.CThe physical properties of steel and iron are nearly identical.DSteel contains more than one element.EThe properties of steel can be changed.
Solution
The correct answers are:
B. Adding other elements to iron increases its strength. This is correct because the addition of other elements to iron, such as carbon, can significantly increase its strength, making it more suitable for use in large building frames.
E. The properties of steel can be changed. This is correct because the properties of steel, such as its strength and resistance to corrosion, can be altered by changing the types and amounts of elements it is alloyed with. This allows for the creation of steel alloys with properties tailored to specific uses, such as building frames.
Similar Questions
Steel is mainly an alloy of iron andA Chromium B Nickel C Manganese D Carbon
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Metal alloys are generally harder and stronger than the individual elements they are made from. This is because the atoms of each element are of a different size and therefore:Lead to an decrease in boiling pointLead to an increase in boiling pointIncrease the size of the latticeDisrupt the regular layers of ions, making them less malleable2Which alloy is formed from copper and tin?BronzeSteelBrassWhite gold3What is the key property of aluminium alloys?Low densityResistance to corrosionBrittlenessStrength4Which of the following statements about steels is not true? High carbon steel is very strong, but brittleSteels are alloys of iron with carbon and/or other elements such as nickel or chromiumStainless steels are hard and strong, but can rust easilyLow carbon steel is softer and less brittle than high carbon steel
Discuss the application of steel in construction works.
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