Metals and Alloys AL Group 2

Why are metals often used in the form of alloys?

• Because the alloys are stronger and do not wear away easily

• Because the alloys are weak and it is wear easily

• Because the metal is dull

• Because the metal melt easily

Below is the examples of alloy unless?

• Brass

• Iron

• Cupronickel

• Solder

What is the Composition of Stainless Steel

• Tin

  Copper

  Antimony

  Nickel

• Iron

  Chromium

  Tin

  Zinc

• Iron

  Chromium

  Nickel

  Carbon

• Copper

  Zinc

  Chromium

  Lead

Which of the following is a disadvantage of using lead as an alloying element?

• Lead improves the machinability of alloys

• Lead increases the strength of alloys

• Lead is a toxic substance

• Lead is inexpensive

Below are the characteristics of Copper unless?

• High density

• High melting point

• Good thermal conductivity

• Low density

What is the Uses of Copper?

• Wires

• Pan

• Aircrafting

• Pen

Which of the following is a non-ferrous metal?

• Iron

• Copper

• Nickel

• Steel

Which of following statements about bronze is true?

• Bronze is an alloy of copper and nickel

• Bronze is an alloy of copper and zinc

• Bronze is an alloy of copper and Aluminum

• Bronze is an alloy of copper and tin

What is the special Properties of Solder?

• Resistant to corrosion, attractive yellow color like gold

• Low Melting point

• Bright, shiny color

• Resistant to corrosion

Which of the following statements about the bronze is true?

•  Bronze is an alloy of copper and nickel.

•  Bronze is an alloy of copper and nickel.

• Bronze is an alloy of copper and aluminum.

• Bronze is an alloy of copper and tin.