Materials. 1  Which of the following is a soft wood? 1. Mahogany. 2. Jelutong 3. Oak 4. Beech 5. Pine.

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Presentation transcript:

Materials

1  Which of the following is a soft wood? 1. Mahogany. 2. Jelutong 3. Oak 4. Beech 5. Pine

2  Which of these materials is an alloy of copper and tin? 1. Pewter 2. Brass 3. Amalgam 4. Bronze 5. Solder

3  Which of the following materials rusts? 1. Copper 2. Stainless steel 3. Aluminium 4. Lead 5. Steel

4  Which of these plastics is a themoplastic - melts or softens with heat. 1. Acrylic 2. Melamine 3. Bakelite 4. Epoxy resin 5. Polyester resin

5  Which of the following is a ferrous metal? 1. Stainless steel. 2. Aluminium 3. Copper 4. Brass. 5. Bronze

6  Which of these materials is the strongest? 1. MDF 2. Blockboard 3. Plywood 4. Pine 5. Chipboard

7  Which of these is a thermoset - can not be reformed once it has been moulded or SET. 1. Polyester (PET) 2. Nylon 3. Polypropylene. 4. Melamine 5. PVC (poly vinyl chloride)

8  What is a common use for polythene? 1. Carrier Bags 2. Clothes pegs 3. Plastic knives,forks and spoons. 4. Yoghurt pots 5. Windows

Answers…

1  Which of the following is a soft wood? 1. Mahogany. 2. Jelutong 3. Oak 4. Beech 5. Pine

2  Which of these materials is an alloy of copper and tin? 1. Pewter 2. Brass 3. Amalgam 4. Bronze 5. Solder

3  Which of the following materials rusts? 1. Copper 2. Stainless steel 3. Aluminium 4. Lead 5. Steel

4  Which of these plastics is a themoplastic - melts or softens with heat. 1. Acrylic 2. Melamine 3. Bakelite 4. Epoxy resin 5. Polyester resin

5  Which of the following is a ferrous metal? 1. Stainless steel. 2. Aluminium 3. Copper 4. Brass. 5. Bronze

6  Which of these materials is the strongest? 1. MDF 2. Blockboard 3. Plywood 4. Pine 5. Chipboard

7  Which of these is a thermoset - can not be reformed once it has been moulded or SET. 1. Polyester (PET) 2. Nylon 3. Polypropylene. 4. Melamine 5. PVC (poly vinyl chloride)

8  What is a common use for polythene? 1. Carrier Bags 2. Clothes pegs 3. Plastic knives,forks and spoons. 4. Yoghurt pots 5. Windows