2954454
Beschreibung
Quiz von raquelpuyuelo, aktualisiert more than 1 year ago
|
Erstellt von raquelpuyuelo
vor mehr als 9 Jahre
|
|
Frage 1
Frage
The MAIN raw material to make plastics is....?
Antworten
-
carbon
-
oil, petroleum
-
cellulose
Frage 2
Frage
Which of the following is/are the reasons of using plastics?
Antworten
-
They are cheap
-
They can be moulded into different shapes easily
-
They are very heavy
Frage 3
Frage
Which of the following statements about plastics is correct?
Antworten
-
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
Möchten Sie mit GoConqr kostenlos Ihre eigenen Quiz erstellen? eigenen Mehr erfahren.