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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