Differences Between Iron, Steel, and Wrought Iron
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Questions and Answers

What is the primary characteristic of torsional strength in metals?

  • The ability to resist weathering and corrosion
  • The ability to resist magnetic forces
  • The ability to resist forces attempting to twist the metal (correct)
  • The ability to resist compression forces

    • What is the main distinguishing feature between pig iron and cast iron?

  • Pig iron is more ductile and malleable than cast iron (correct)
  • Pig iron has a higher carbon content than cast iron
  • Pig iron has a higher melting temperature than cast iron
  • Pig iron can be magnetized while cast iron cannot

    • What is the primary use of high purity pig iron (nodular pig iron)?

  • Preparing rail chairs and carriage wheels
  • Making agricultural implements
  • Manufacturing compression members like columns and bases
  • Producing ductile iron castings (correct)

    • What is a key limitation of cast iron in terms of its physical properties?

    <p>It is weak in tension and strong in compression</p> Signup and view all the answers

    Which of the following is NOT a common use of cast iron?

    <p>Welding together different pieces of cast iron</p> Signup and view all the answers

    What is the primary reason why cast iron is not suitable for absorbing shocks?

    <p>It lacks plasticity and ductility</p> Signup and view all the answers

    What is the primary characteristic that defines a metal?

    <p>Good conductor of electricity and heat</p> Signup and view all the answers

    Which property of metals allows them to be easily molded into different shapes?

    <p>Ductility</p> Signup and view all the answers

    Which property of metals allows them to withstand forces attempting to pull them apart?

    <p>Tensile strength</p> Signup and view all the answers

    Which property of metals is the opposite of ductility?

    <p>Brittleness</p> Signup and view all the answers

    Which property of metals allows them to withstand being crushed?

    <p>Compressive strength</p> Signup and view all the answers

    Which property of metals allows them to tolerate forces trying to slice or cut them apart?

    <p>Shear strength</p> Signup and view all the answers

    Which metal ranks next to iron in importance and has a wide range of applications?

    <p>Copper</p> Signup and view all the answers

    Which metal is bluish-white in color and is corrosion resistant due to a thin oxide film forming on its surface?

    <p>Zinc</p> Signup and view all the answers

    Which metal is used for galvanizing to stop rusting of steel?

    <p>Tin</p> Signup and view all the answers

    Which metal makes an impression on paper and can be cut with a knife?

    <p>Lead</p> Signup and view all the answers

    Which metal is silver in color, very strong but lightweight, and used for making automobile bodies?

    <p>Aluminum</p> Signup and view all the answers

    Which metal is used in the preparation of special alloy steels, ceramic products, and television articles?

    <p>Cobalt</p> Signup and view all the answers

    What is the primary use of nickel in the manufacturing industry?

    <p>As a coating for metals to improve corrosion resistance</p> Signup and view all the answers

    Which property of nickel makes it suitable for welding applications?

    <p>Its malleability and ability to take a high polish</p> Signup and view all the answers

    How does the corrosion resistance of ferrous metals compare to non-ferrous metals?

    <p>Non-ferrous metals are more resistant to corrosion than ferrous metals</p> Signup and view all the answers

    What is the primary difference between ferrous and non-ferrous metals in terms of their magnetic properties?

    <p>Ferrous metals are magnetic, while non-ferrous metals are not</p> Signup and view all the answers

    Which property of ferrous metals makes them suitable for applications requiring high tensile strength?

    <p>Their ability to carry a high amount of strain</p> Signup and view all the answers

    In which application would non-ferrous metals be preferred over ferrous metals?

    <p>In applications where the magnetic attraction of iron may be a disadvantage</p> Signup and view all the answers

    What material is known for having high impact stress compared to other die casting alloys?

    <p>Zinc</p> Signup and view all the answers

    Which material cannot be hardened by heating and quenching?

    <p>Wrought Iron</p> Signup and view all the answers

    What metal is known for being toxic and is great for soldering due to its low melting point?

    <p>Lead</p> Signup and view all the answers

    Which material is known for being a good conductor of heat but is susceptible to rust and corrosion?

    <p>Copper</p> Signup and view all the answers

    What metal is lustrous and decorative, but rarely mixed with cheaper alloying metals?

    <p>Nickel</p> Signup and view all the answers

    Which metal is abundant, lightweight, ductile, malleable, and versatile, but expensive compared to steel with the same strength?

    <p>Aluminum</p> Signup and view all the answers

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