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Synthetic Fibres and Plastics Test - 12

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Synthetic Fibres and Plastics Test - 12
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  • Question 1
    1 / -0
    Which plastic is used for replacing materials like glass for making bottles and jars?
    Solution
    PET, which stands for polyethylene terephthalate, is a form of polyester (just like the clothing fabric). It is extruded or moulded into plastic bottles and containers for packaging foods and beverages, personal care products, and many other consumer products.

    Hence, the correct option is $$\text{A}$$
  • Question 2
    1 / -0
    Rayon has properties similar to:
    Solution
    Rayon has properties similar to silk and is therefore called artificial or synthetic fibre.
  • Question 3
    1 / -0
    Given figure shows which kind of arrangement of plastics ?

    Solution
    Figure shows a linear arrangement of units that make up thermoplastics.
  • Question 4
    1 / -0
    Which of the following is biodegradable substance?
    Solution
    As a natural product, cotton is completely biodegradable, which means that it breaks down when put into a composting pile or bin. Because of cotton's biodegradable properties, all-cotton clothing can also be recycled and used in the manufacture of useful materials, such as household insulation

    Hence, the correct option is $$\text{A}$$.
  • Question 5
    1 / -0
    The fibre developed in New York & London simultaneously is :
    Solution
    Nylon got its name Ny from New York and Lon from London.
    Option A is correct.
  • Question 6
    1 / -0
    Fibres obtained from plants and animals are called:
    Solution
    Fibres obtained from plants and animals are called natural fibres. e.g Silk Wool.
  • Question 7
    1 / -0
    Name the plastic whose sheets are used for packing liquids.
    Solution
    In order to pack the liquids, Polyethylene terepthalate is used.

    It is an important substance that can store the liquid without leakage.

    It is a polymer of ethylene terepthalate and is quite durable in carrying the stuff from one place to another.

    Strength and durability are the two important factors that make it an important choice.

    Hence, the correct option is $$\text{A}$$
  • Question 8
    1 / -0
    An example of natural fibre is :
    Solution
    Jute is long, shiny and vegetable fibre.
    Option C is correct.
  • Question 9
    1 / -0
    Disposal of plastic is a major problem because :
    Solution
    Plastic is non biodegradable and also it take several thousands of years and also on burning it leave many poisonous gases.
    Option D is correct.
  • Question 10
    1 / -0
    Which of the following statement is true about PVC (polyvinyl chloride) and polythene?
    Solution
    Thermoplastics on heating get deformed (its shape and size can be altered) and thus can also be bent. On the other hand, thermosetting plastics cannot be bent once moulded. Some examples of Thermoplastics are – Polythene and PVC. Some examples of Thermosetting plastics are – Bakelite and Melamine.

    Hence, the correct option is $$\text{A}$$
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