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- 1. Multiple Choice
Brass is an alloy made from
Copper and tin
Zinc and copper
Copper and aluminium
Bronze and copper
- 2. Multiple Choice
The definition of an alloy is:
It is magnetic
It is a mixture of two or more metals
It is always coloured silver
The main property of the material is heat retention
- 3. Multiple Choice
Which of the following is a ferrous metal?
Brass
Copper
Cast iron
Aluminium
- 4. Multiple Choice
Ceramics are used for:
Insulation on cold water pipework
Kitchen cupboard doors for hygiene
Sanitary appliances
Filtration systems for swimming pools
- 5. Multiple Choice
Polybutylene can be used for:
Guttering
Downpipes
Waste pipes
Central heating pipes
- 6. Multiple Choice
Which of the following statements is true about a thermoplastic?
When cold it can be brittle
It remains soft and pliable at any temperature
It cannot be recycled
Once heated it cannot be re-shaped
- 7. Multiple Choice
Hardness describes the ability of a material to resist scratching, bending, abrasion and cutting.
TRUE
FALSE
- 8. Multiple Choice
The term 'conductivity' can refer to both electrical and thermal.
True
False
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