WorksheetsCarbon and Steel
Total questions: 13
Worksheet time: 7mins
Steel is often categorized according to its ______ content.
carbon
hydrogen
oxygen
nitrogen
As the carbon content of steel increases, it becomes ______ and ______. At the same time, it also becomes less ______.
stronger, harder, ductile
softer, weaker, brittle
more elastic, less dense, magnetic
lighter, shinier, malleable
True or False: It is uncommon for steel to contain trace amounts of chromium or nickel.
True
False
What is another name for low-carbon steel?
Hard steel
Mild steel
Alloy steel
Stainless steel
0.05 Dead mild steel is used for:
Case carburising
Sheet and strip for presswork, car bodies, tin-plate, wire, rod and tubing
Structural work
Re-bar
0.08 - 0.15 Mild steel is used for:
Sheet and strip for presswork, wire and rod for nails, screws, Re-bar
Case carburising
Structural work
Car bodies
Name two elements that can be added to high carbon steel to enhance its resistance to corrosion and aid in the hardening process.
Chromium and Manganese
Copper and Zinc
Aluminum and Lead
Nickel and Tin
Which element is added to steel to form stainless steel?
Nickel
Chromium
Copper
Zinc
What is the standard sheet material in engineering and manufacturing that balances strength, formability, and cost?
Mild steel
Aluminum
Copper
Stainless steel
What is a key disadvantage of mild steel sheet?
High cost
Poor resistance to corrosion
High density
Difficult to weld
How is galvanised mild steel produced?
By painting sheets of mild steel
By dipping sheets of mild steel into molten zinc
By heating sheets of mild steel in air
By coating sheets of mild steel with plastic
Is hot-dipped galvanised mild steel more cost-effective compared to stainless steel?
True
False
Aluminium is highly valued for applications such as aerospace, transport, and weight reduction because it is:
lightweight and strong
magnetic and brittle
heavy and expensive
easily corroded
