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WorksheetsMetals & Ceramics
Total questions: 15
Worksheet time: 34mins
The ability of a material to be shaped in all directions without cracking or breaking.
Hardness
Ductility
Malleability
Conductivity
Ceramics are able to withstand high temperatures without softening and deforming under normal service conditions. These properties make ceramics a good choice for:
(Choose Two Answers)
Electric insulators
Water bottles
Electric conductors
Furnace lining
Ceramics have the ability to resist chemical attack however, they lack these two properties:
Ductility
Brittleness
Hardness
Electric conductivity
Materials used for electric insulators must have a low degree of: (choose two answers)
Thermal conductivity
Hardness
Electric conductivity
Compressive strength
Engineering materials that have a good resistance to the corrosion: (choose all that apply)
Polymers
Composites
Metals
Ceramics
Generally speaking, steel is made of
iron and carbon
copper and iron
tin and carbon
aluminum and nickel
Why are metals alloyed?
To improve the appearance of a metal
To make them less likely to corrode
To reduce the amount of iron used
To change the properties of the metal
Why are alloyed metals usually stronger?
They have atoms of different metals in them, which makes it easier for the layer to move past each other...less likely to break
They have atoms of different metals in them, which makes it harder for the layer to move past each other...less likely to break
Why is steel alloyed with other metals?
To make It stronger
To make it lighter
To make it more resistant to corrosion
All of the above
