Synthetic Fibres and Plastics-Types of Synthetic Fibres [CBSE (Central Board of Secondary Education) Class-8 Science]: Questions 1 - 6 of 7
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Question 1
Question MCQ▾
Rayon is called regenerated fibre because:
Choices
Choice (4) | Response | |
---|---|---|
a. | its formation is a case of purification of cellulose | |
b. | of the blending property of rayon | |
c. | its formation is the case of synthesis of cellulose | |
d. | of its shining softness and absorbing properties |
Question 2
Question MCQ▾
Blending property of polyesters is used in the formation of:
Choices
Choice (4) | Response | |
---|---|---|
a. | For making sarees. | |
b. | Mixed with wool to make long lasting fabrics | |
c. | Aprons and caps | |
d. | Terrycot, Terrywool, Terrysilk etc. |
Question 3
Question MCQ▾
The characteristics of synthetic fibres are:
Choices
Choice (4) | Response | |
---|---|---|
a. | More durable | |
b. | Less Expensive | |
c. | Not attacked by insects and pests | |
d. | All a., b. and c. are correct |
Question 4
Question MCQ▾
Another name for rayon is:
Choices
Choice (4) | Response | |
---|---|---|
a. | Synthetic fibre | |
b. | Man-made fibre | |
c. | Artificial fibre | |
d. | Artificial silk |
Question 5
Question MCQ▾
Polyester is inert to sea water thus it is used for making of:
Choices
Choice (4) | Response | |
---|---|---|
a. | For making bottles and containers | |
b. | For making swim wears | |
c. | Sail boats, water hoses for fighting and as a packing material for food | |
d. | For making base of magnetic recording tape. |
Question 6
Question MCQ▾
One fully synthetic fibre is:
Choices
Choice (4) | Response | |
---|---|---|
a. | Polyesters | |
b. | Nylon | |
c. | Rayon | |
d. | Acrylic fibres |