Engineering Materials Overview
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Questions and Answers

Which type of steel is known for having a higher carbon content, making it exceptionally hard?

  • Cast iron (correct)
  • Stainless steel
  • Engineering steel
  • Wrought iron

What property makes wrought iron prone to rust?

  • Low resistance to corrosion (correct)
  • A silver-like color
  • Usually magnetic
  • Great tensile strength

Which type of steel becomes even tougher with the introduction of elements like chromium and nickel?

  • Cast iron
  • Stainless steel
  • Wrought iron
  • Engineering steel (correct)

What characteristic of stainless steel makes it widely used in construction and manufacturing industries?

<p>Low resistance to corrosion (C)</p> Signup and view all the answers

Which type of steel is often used for items like stairs, platforms, walkways, and moveable partition supports?

<p>Engineering steel (A)</p> Signup and view all the answers

What is a common application of powder-coated steel according to the text?

<p>Toilet partitions and lockers (A)</p> Signup and view all the answers

Which type of steel incorporates elements such as chromium, nickel, and titanium to impart greater strength and durability without increasing weight?

<p>Stainless steel (B)</p> Signup and view all the answers

In which application is cast iron commonly used?

<p>Automobile engines (D)</p> Signup and view all the answers

What gives wrought iron excellent resistance to corrosion and oxidation?

<p>Slag (D)</p> Signup and view all the answers

Which type of iron is almost pure iron with very little carbon content?

<p>Wrought iron (D)</p> Signup and view all the answers

What property makes cast iron resistant to wear?

<p>Hardness (B)</p> Signup and view all the answers

Which element is NOT typically incorporated into engineering steels like stainless steel?

<p>Silicon (C)</p> Signup and view all the answers

What is the primary use of copper in the electrical industry?

<p>Production of wire and other conductors (A)</p> Signup and view all the answers

Which metal is valued for its strength and corrosion resistance among the listed nonferrous metals?

<p>Bronze (A)</p> Signup and view all the answers

What does the addition of aluminum do to brass?

<p>Improves strength and corrosion resistance (B)</p> Signup and view all the answers

Which metal is red in color and is highly ductile and malleable?

<p>Copper (D)</p> Signup and view all the answers

What property makes aluminium a suitable choice for the manufacturing of aircraft?

<p>Lightweight (A)</p> Signup and view all the answers

Which metal is steel-gray, lustrous, hard, and takes a high polish?

<p>Chromium (D)</p> Signup and view all the answers

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