Metals and Alloys

Which property of metals allows them to be drawn into wires?

• • Malleability

• • Ductility

• • Brittleness

• • Hardness

What is an alloy?

• • A pure metal

• • A mixture of two or more elements, where at least one is a metal

• • A metal coated with another metal

• • A metal that has been melted and solidified

Which of the following is NOT a purpose of creating alloys?

• • To improve the appearance of the metal

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• • To increase the electrical conductivity of the metal

• • To make the metal more brittle

• • To enhance the strength of the meta

What is galvanization?

• • A process of applying a layer of zinc to steel or iron to prevent rusting

• • A process of polishing metals to make them shiny

• • A process of heating metals to a high temperature and then cooling them slowly

• • A process of mixing metals to create an alloy

Which metal finishing process involves electrochemically coating a metal with a thin layer of another metal?

• • Anodizing

• • Galvanization

• • Electroplating

• • Powder coating

What is the main reason for applying a finish to a metal?

• • To change its colour

• • To improve its electrical conductivity

• • To protect it from environmental damage

• • To increase its weight

Which of the following is a common method to prevent metal corrosion?

• • Keeping the metal wet at all times

• • Exposing the metal to acidic conditions

• • Applying a protective coating

• • Increasing the temperature of the metal

What property of metals refers to their ability to withstand forces without breaking?

• • Elasticity

• • Toughness

• • Brittleness

• • Strength

Stainless steel is an alloy made from iron, chromium, and often nickel. What property does chromium give to stainless steel?

• • Magnetism

• • Rust resistance

• • Increased weight

• • Electrical conductivity

What does the term "malleability" refer to in the context of metals?

• • The ability to be drawn into wires

• • The ability to be hammered or rolled into thin sheets

• • The ability to resist wear and tear

• • The ability to return to its original shape after being stretched