PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free DemoAnswer the following questions:
1. Explain why the following are made of thermosetting plastics.
(a). Saucepan handles
(b). Electric plugs/switches/plug boards
(a). Saucepan handles
(b). Electric plugs/switches/plug boards
(a). Since thermosetting plastics are a and do not get heated up while cooking, they make saucepan handles.
(b). Since thermosetting plastics are a and the electric current does not pass through such plastics, they make electric plugs/switches/plugboards.
2. Categorise the materials of the following products into ‘can be recycled’ and ‘cannot be recycled’:
Telephone instruments, plastic toys, cooker handles, carry bags, ball point pens, plastic bowls, plastic covering on electrical wires, plastic chairs, electrical switches.
Telephone instruments, plastic toys, cooker handles, carry bags, ball point pens, plastic bowls, plastic covering on electrical wires, plastic chairs, electrical switches.
Can be recycled:
Plastic toys, carry bags, , plastic covering on electrical wires, plastic chairs.
Plastic toys, carry bags, , plastic covering on electrical wires, plastic chairs.
Cannot be recycled:
Telephone instruments, , ballpoint pens, electrical switches.
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