What do you know about plastics?

Descripción

(MATERIALS: PLASTICS, TEXTILES, STONE AND CERAMICS) TECHNOLOGIES Test sobre What do you know about plastics?, creado por raquelpuyuelo el 16/06/2015.
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Creado por raquelpuyuelo hace más de 11 años
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Resumen del Recurso

Pregunta 1

Pregunta
The MAIN raw material to make plastics is....?
Respuesta
  • carbon
  • oil, petroleum
  • cellulose

Pregunta 2

Pregunta
Which of the following is/are the reasons of using plastics?
Respuesta
  • They are cheap
  • They can be moulded into different shapes easily
  • They are very heavy

Pregunta 3

Pregunta
Which of the following statements about plastics is correct?
Respuesta
  • There are no cross-links between polymer chains in thermosetting plastics
  • Thermoplastics are biodegradable
  • Polyester is a thermoplastic that is usually used to make shirts
  • Compression moulding is usually used to mould thermoplastics
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