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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
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
Which of the following is a source of non-biodegradable waste?
A Food scraps
B Paper
C Plastic bottles
D Leaves
Class 8 Science
Which of the following is a biodegradable plastic alternative?
A Polythene bag
B Jute bag
C PVC pipe
D Bakelite switch
Class 8 Science
Which type of plastic can be remelted and reshaped multiple times?
A Thermosetting plastic
B Thermoplastic
C Bakelite
D Melamine
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
Which of the following is a natural fibre?
A Nylon
B Polyester
C Cotton
D Acrylic
Class 8 Science
Which of the following is a biodegradable plastic substitute?
A Polythene bags
B Bagasse (sugarcane fibre) bags
C PVC pipes
D Polyester fabric
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

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