What is the main alloying element in ferrous materials?

• Copper

• Aluminum

• Carbon

• Nickel

Which type of steel has a carbon content of less than 0.25%?

• Low-carbon steel

• High-carbon steel

• Medium-carbon steel

• Stainless steel

What is the primary characteristic of stainless steels?

• High melting point

• High resistance to corrosion

• Low density

• High electrical conductivity

Which type of cast iron is known for its brittleness and difficulty to machine?

• Malleable iron

• Gray cast iron

• Nodular cast iron

• White cast iron

What is the typical carbon content range for high-carbon steels?

• 0.25% to 0.6%

• 0.6% to 1.4%

• 1.4% to 2.14%

• Less than 0.25%

Which alloying element is commonly added to improve the hardenability of medium-carbon steels?

• Chromium

• Nickel

• Titanium

• Copper

What is a key advantage of non-ferrous alloys over ferrous alloys?

• Higher thermal conductivity

• Lower melting point

• Better corrosion resistance

• Higher density

Which type of stainless steel is known for its non-magnetic properties?

• Ferritic stainless steel

• Austenitic stainless steel

• Martensitic stainless steel

• Duplex stainless steel

What is the primary application of high-carbon steels?

• Structural shapes

• Cutlery and tools

• Automobile body components

• Railway tracks

Which non-ferrous alloy is characterized by low density and high strength?

• Aluminum alloys

• Copper alloys

• Magnesium alloys

• Titanium alloys