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Synthetic Fibres And Plastics Mock Tests

26 questions available

Synthetic Fibres And Plastics Mock Test 1

Questions: 26

Sample Questions

Class 8 Science
Bakelite, a plastic used for making electrical switches and handles of utensils, is classified as a:
A Thermoplastic
B Thermosetting plastic
C Biodegradable plastic
D Polymer
Class 8 Science
Which of the following is a characteristic of thermosetting plastics?
A They can be remelted and reused
B They cannot be remelted once moulded
C They are always transparent
D They are soft and flexible
Class 8 Science
Melamine, used to make flame-resistant kitchenware and fire blankets, is an example of which type of plastic?
A Thermoplastic
B Thermosetting plastic
C Biodegradable plastic
D Polyethylene
Class 8 Science
Bakelite is an example of which type of plastic?
A Thermoplastic
B Thermosetting
C Biodegradable
D Elastomer
Class 8 Science
A thermosetting plastic is one that:
A Can be remelted and reshaped multiple times
B Cannot be remelted once moulded
C Is always transparent
D Dissolves in water
Class 8 Science
Which of the following plastics can be remelted and reshaped multiple times without permanent chemical change?
A Bakelite
B Melamine
C PVC (Polyvinyl chloride)
D Polyester
Class 8 Science
Which plastic is a thermosetting plastic?
A Polythene
B PVC
C Bakelite
D Polystyrene
Class 8 Science
Which of the following is an example of a non-biodegradable waste?
A Paper
B Food waste
C Plastic bags
D Cotton cloth

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