Ferrous vs Non-Ferrous

What is the main difference between ferrous and non-ferrous metals?

• Ferrous metals are non-magnetic

• Non-ferrous metals contain iron

• Ferrous metals contain iron

• Non-ferrous metals are heavier

What factor affects the melting point of bronze?

• Amount of copper present

• Amount of tin present

• Amount of iron present

• Amount of zinc present

Which of the following is NOT a component of bronze?

• Copper

• Tin

• Zinc

• Iron

What is the composition of phosphor bronze?

• 8% tin, 0.3% phosphorus

• 10% tin, 0.5% phosphorus

• 5% tin, 0.2% phosphorus

• 12% tin, 0.4% phosphorus

Which alloy is known for its resistance to seawater corrosion?

• Gunmetal

• Phosphor bronze

• Copper-nickel

• Brass

Which alloy contains zinc as one of its components?

• Phosphor bronze

• Gunmetal

• Copper-nickel

• Steel

What is a key property of silicon 'bronze' alloys?

• High electrical conductivity

• Good corrosion resistance

• Low melting point

• High thermal expansion

What is a characteristic of copper-aluminium alloys?

• Brittle

• Very strong

• Highly magnetic

• Low density

What is the primary use of Delta bronze?

• Electrical components

• Structural beams

• Decorative items

• Wrought applications

What is the main benefit of annealing copper-aluminium alloys?

• Increases hardness

• Makes them soft and ductile

• Enhances color

• Reduces weight