Synthetic Fibres and Plastics-Types of Synthetic Fibres (CBSE Class-8 Science): Questions 1 - 7 of 7

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Question number: 1

» Synthetic Fibres and Plastics » Types of Synthetic Fibres » Rayon

MCQ▾

Question

Rayon is called regenerated fibre because:

Choices

Choice (4) Response

a.

its formation is the case of synthesis of cellulose

b.

its formation is a case of purification of cellulose

c.

of its shining softness and absorbing properties

d.

of the blending property of rayon

Question number: 2

» Synthetic Fibres and Plastics » Types of Synthetic Fibres » Polyester and Acrylic

MCQ▾

Question

Blending property of polyesters is used in the formation of:

Choices

Choice (4) Response

a.

Mixed with wool to make long lasting fabrics

b.

Aprons and caps

c.

Terrycot, Terrywool, Terrysilk etc.

d.

For making sarees.

Question number: 3

» Synthetic Fibres and Plastics » Types of Synthetic Fibres » Characteristics of Synthetic Fibres

MCQ▾

Question

The characteristics of synthetic fibres are:

Choices

Choice (4) Response

a.

Not attacked by insects and pests

b.

More durable

c.

Less Expensive

d.

All a. , b. and c. are correct

Question number: 4

» Synthetic Fibres and Plastics » Types of Synthetic Fibres » Rayon

MCQ▾

Question

Another name for rayon is:

Choices

Choice (4) Response

a.

Synthetic fibre

b.

Artificial fibre

c.

Artificial silk

d.

Man-made fibre

Question number: 5

» Synthetic Fibres and Plastics » Types of Synthetic Fibres » Polyester and Acrylic

MCQ▾

Question

Polyester is inert to sea water thus it is used for making of:

Choices

Choice (4) Response

a.

Sail boats, water hoses for fighting and as a packing material for food

b.

For making base of magnetic recording tape.

c.

For making bottles and containers

d.

For making swim wears

Question number: 6

» Synthetic Fibres and Plastics » Types of Synthetic Fibres » Nylon

MCQ▾

Question

One fully synthetic fibre is:

Choices

Choice (4) Response

a.

Nylon

b.

Rayon

c.

Polyesters

d.

Acrylic fibres

Question number: 7

» Synthetic Fibres and Plastics » Types of Synthetic Fibres » Polyester and Acrylic

MCQ▾

Question

Acrylic fibres are made from:

Choices

Choice (4) Response

a.

Crude oil

b.

Acrylic acid or its derivatives

c.

Cellulose

d.

Coal, water and air

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