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Earn 100
Which of the following is the strongest fibre?
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Important Questions on Synthetic Fibres and Plastics
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(I) Most synthetic fibres are obtained from coal, petroleum and natural gas.
(II) Acrylic fibres closely resemble wool.
(III) Most synthetic fibres have very high moisture absorbing capacity.
(IV) Polyester is prepared from cellulose.
MEDIUM
MEDIUM
Practical skills questions. Choose the correct option.
Which of the following threads is the strongest?
MEDIUM
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MEDIUM
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Practical skills questions. Choose the correct option.
All threads should be of the same _____.
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It is not advisable to wear clothes made of synthetic fibre while working near fire because
MEDIUM
HARD
Match column I with column II and select the correct option from the given codes.
| Column I | Column II | ||
| P. | Nylon | (i) | Burns quickly with a smell of burning paper |
| Q. | Wool | (ii) | Burns with sooty flame, fabric shrinks and black beads are formed |
| R. | Acrylic | (iii) | Shrinks after exposure to flame, forms hard beads and gives a smell of burning hair |
| S. | Rayon | (iv) | Burns slowly with a smell of burning hair |
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MEDIUM
MEDIUM
Sneha has classified a few materials as shown in the table.
| S. No. | Material | Type/Nature |
| 1. | Nylon | Synthetic and non-biodegradable |
| 2. | Jute | Natural and non-biodegradable |
| 3. | Coir | Synthetic and biodegradable |
| 4. | Wool | Natural and biodegradable |
| 5. | Acrylic | Blended and biodegradable |
| 6. | Polyester | Synthetic and non-biodegradable |
The materials which are classified incorrectly are
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Practical skills questions. Choose the correct option:The thread which holds the maximum number of marbles is:
