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NIOS Class 10 Home Science Chapter 10 Fibre To Fabric
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Fibre To Fabric
Chapter: 10
[Book – I] HOME SCIENCE
TEXTUAL QUESTION WITH ANSWERS
Intext Questions 10.1.
Q.1. Match column A with column B and fill in the given blanks:
| Column A | Column B | |
| (i) Jute | (a) Plant fibres | |
| (ii) Cotton | (b) Man-made fibres | |
| (iii) Wool | (c) Bast fibre | |
| (iv) Rayon | (d) Regenerated fibre | |
| (v) Silk | (e) Natural fibre | |
| (vi) Nylon | (f) Animal fibre | |
| (vii) Cellulosic fibres | (g) Silkworm | |
| (h) Flax |
Ans:
| Column A | Column B | |
| (i) Jute | (c) Bast fibre | |
| (ii) Cotton | (a) Plant fibres | |
| (iii) Wool | (f) Animal fibre | |
| (iv) Rayon | (d) Regenerated fibre | |
| (v) Silk | (g) Silkworm | |
| (vi) Nylon | (b) Man-made fibres | |
| (vii) Cellulosic fibres | (e) Natural fibre |
Intext Questions 10.2.
1. One evening, Geet was busy cooking dinner and her father was in the garden. Suddenly, Geet saw her dupatta had caught fire. She shouted loudly and ran out of the kitchen. Her father saw flames and rushed towards her with a cotton sheet.
He quickly wrapped it around Geet to put off the flam es. He immediately took her to hospital. Doctor said Geet had received burns because the dupatta, made from polyester, had melted and stuck to her skin. Her father had received only a few scalds while wrapping Geet with cotton sheet and putting off the flames. Since he was wearing cotton kurta, paijama he was saved.
The doctor appreciated her father’s presence of mind in wrapping a sheet that helped in extinguishing the fire immediately. Fortunately the burns were not very severe and Geet recovered soon.
Answer the following questions:
(i) Why did the dupatta catch fire?
Ans: Because, the dupatta, made from polyester.
(ii) Why did the dupatta get stuck to the body after catching fire?
Ans: Because, it is made from polyester, it catches fire easily had melted and stuck to her skin.
(iii) Why was Geet’s father relatively safe from burns?
Ans: Geet’s father was relatively safe from burns because he was wearing cotton kurta paijama.
(iv) What type of fabric should you prefer to wear while working in the kitchen?
Ans: Cotton clothes.
(v) List three other fabrics which can be worn while working near fire.
Ans: Nylon, jute, Rayon.
(vi) People know that synthetic fabrics catch fire easily yet most of them wear these clothes while working in the kitchen. Convince them in about 30 words on merits of changing into cotton clothes before working in the kitchen.
Ans: People working in a kitchen wearing into cotton clothes. It is a good conductor of heat. It can withstand high temperature. It can be boiled in water for considerable time without much damage.
Q.2. Film in the blanks:
(i) If wool: winter, then _________ :sammer
Ans: Cotton.
(ii) If bark: flax, then _________: wool
Ans: Fleece.
(iii) If cotton: king of fibres, then silk: _________.
Ans: Queen of fibres.
(iv) If regenerated fibres: wood pulp, then synthetic fabrics: _________.
Ans: Petroleum products.
(v) If linen: cotton, then acrylic: _________.
Ans: Wool.
Q.3. Put a tick mark on the right option. Justify the chosen option.
(a) Cotton is a filament fibre. True/false
Ans: False – Cotton is a staple fibre.
(b) Length of staple fibres is measured in inches. True/false
Ans: True.
(c) Acetate is a man made fibre. True/ false
Ans: False – Acetate is a Regenerated fibre
(d) Natural fibres can be made from chemicals. True/False
Ans: False – Wool is a protein fibre
(e) Wool is a protein fibre. True/ False
Ans: True.
WONDER BOX
(a) I am soft and look like silk.
(b) I become lustrous by Starching.
(c) I look like wool.
(d) I am smooth and lustrous.
(e) I am rough to touch.
(f) I give warmth in winters.
(g) I am easily washable
(h) I wrinkle easily.
| R | A | Y | O | N | F | S | D |
| M | A | C | R | Y | L | I | C |
| N | W | Y | C | G | H | L | L |
| Y | T | W | O | O | L | K | I |
| L | Y | U | T | N | I | O | N |
| O | J | K | T | B | N | M | E |
| N | L | Z | O | Q | W | E | N |
| X | C | V | N | J | U | T | E |
Q.4. Search names of fibres in wonder box. Hints are given below.
Ans: Wonder box:
Intext Questions 10.3.
Q.1. State whether the following statements are true or false. Encircle the right answer.
(a) Silk yarn breaks easily. True/ False
Ans: False – Silk yarn breaks with a jerk.
(b) Bulky yarns need less number of twists in one inch length. True/ false
Ans: True.
(c) Slub yarns have thick and thin places. True/ false
Ans: True.
(d) Cord yarn is made from single yarn.
Ans: False – Cord yarn in made from single yarn.
Q.2. Fill in the blanks with appropriate words. Choose the words from the box given along.
(i) A simple yarn has uniform __________in per inch length.
Ans: Thickness.
(ii) Cord yarn is a ____________.
Ans: Multiple, strand yarn.
(iii) Flex is stronger than _____________.
Ans: Cotton.
(iv) Synthetic yarns stretch and ___________.
Ans: Do not break easily.
Intext Questions 10.4.
Q.1. Fill in the blanks with appropriate words:
1. Hand knitting is known as __________ (warp knitting/weft knitting)
Ans: Weft knitting.
2. Khadi movement in India was started by __________ (Mahatma Gandhi/Jawaharlal Nehru)
Ans: Mahatma Gandhi.
3. Selvedge refers to __________ (Width/Length of fabric)
Ans: Length of fabric.
4. Woven fabrics __________ (Stretch/Do not stretch)
Ans: Do not stretch.
Q.2. Unscramble the following jumbled words to identify the names of some fabrics:
(i) __________ niemd.
Ans: Denim.
(ii) __________ bargadine.
Ans: Gabardine.
(iii) __________ ydnaorg.
Ans: Organdy.
(iv) __________ twelo.
Ans: Towel.
Intext Questions 10.5.
Choose the correct answer from the four given (option) at the end of each statement:
Q.1. Muslim is a fabric which is ___________.
(a) Light weight and loosely woven.
(b) Transparent and crisp.
(c) Heavy weight and thick.
(d) Medium weight and plain.
Ans: (a) Light weight and loosely woven.
Q.2. Denim is a fabric which is ____________.
(a) Light weight and loosely woven.
(b) Transparent and crisp.
(c) Heavy weight and thick.
(d) Medium weight and plain.
Ans: (c) Heavy weight and thick.
Q.3. Organdy is a fabric which is _____________.
(a) Light weight and loosely woven.
(b) Transparent and crisp.
(c) Heavy weight and thick.
(d) Medium weight and plain.
Ans: (b) Transparent and crisp.
Q.4. Poplin is a fabric which is _____________.
(a) Light weight and loosely woven.
(b) Transparent and crisp.
(c) Heavy weight and thick.
(d) Medium weight and plain.
Ans: (d) Medium weight and plain.
Terminal Exercise
Q.1. Give one difference between the following:
(i) Coarse and fine yarn.
Ans: (a) Coarse: Jute Fibres are hairy and generally rough. The fibres are short and lustrous but weaker than flax.
(b) Fine yarn: A yarn in a continuous strand made up a number of fibre which are twisted together.
(ii) S and Z twist.
Ans: Twists given to fibre strand for formation of a yarn can be either ‘S-Twist’ (clockwise) or ‘Z- twist'(anticlockwise). The quality and strength of yarn is affected by the number of twists in inch. Lesser the number of twists per inch, bulkier and less strong is the yarn and more the number of twists, finer and stronger is the yarn. Figure 10.2 shows number of turns in a yarn.
(iii) Four ply and cord yarn.
Ans: Four ply: Are also known as cable yarns. These are usually made by plying two strands of two – ply yarns together.
Cord yarn: is a multiple strand yarn. Take 3/4/5 ply yarns and twist together and knot both the ends to get cord yarn. These are generally used for making ropes.
(iv) Spun and filament yarn.
Ans: The short length fibres are called staple fibres and are measured in inches or centimeters, e.g., cotton, wool and linen. The long fibres are known as filaments and are measured in yards/ meters, e.g., silk and all man – made fibres.
Q.2. Why Nylon, polyester and Acrylic eatch fire easily?
Ans: Synthetic fibres are made from petroleum products. Nylon, polyester and Acrylic are the examples of synthetic fibres. Since these fibres catch fire easily and easily and can stick to the body.
Q.3. Read the case study given below and answer the questions given at the end:
Ans: Ginni was extremely unhappy because a red rash was spreading all over her body and was very painful. She had tried many local applications to get rid of them, but nothing helped. The rash was causing irritation and made her feel uncomfortable.
She discussed her problem with her friend shyama who suggested her to consult a doctor in the village dispensary the doctor looked at her skin problem and noticed the fabric of her dress. She asked Ginny if she wore the same dress often. Ginni said yes because she liked the dress very much. It was a fashionable dress, easy to wear, carry and maintain.
The doctor advised Ginni not to wear the dress again for sometime. In warm climate it did not allow the skin to breathe fresh air, caused sweating which led the skin to become irritable and cause the red rash.
But Ginny was not convinced. She thought, everybody wore dresse made from similar material and had no complaints. If nobody else had any problem in wearing such clothes why she should have any. Surely she thought that her problem could not be due to the clothes she wore. So she did not stop wearing her favourite dress.
Some questions to ponder (if possible discuss with peer group or with people at home)
Q.4. If you were Ginni ‘s friend what would you advise her to do? How would you convince her?
Ans: I suggested Ginni to wear coloured cotton clothes. These are absorbent, porous and cool and allow the body heat to go out. Hence, fabrics made out of it are used as summer wear as cotton wrinkles very easily.
SOME OTHER IMPORTANT QUESTIONS FOR EXAMINATION
Multiple Choice Questions
Choose the most suitable answer and tick mark (✔):
1. Staple fibres are:
(a) Very Short.
(b) Very long.
(c) Short.
(d) Long.
Ans: (c) Short.
2. Filament fibres are:
(a) Very Short.
(b) Short.
(c) Very long.
(d) Long.
Ans: (d) Long.
3. Which of the following is not a natural fibres?
(a) Silk fibre.
(b) Nylon fibre.
(c) Jute fibre.
(d) Cotton fibre.
Ans: (b) Nylon Fibre.
4. Which of the following is a man-made fibre?
(a) Polyester.
(b) Acrylic.
(c) Rayon.
(d) All of the above.
Ans: (d) All of the above.
5. Which of the following is obtained from animal?
(a) Wool.
(b) Cashmilon.
(c) Cotton fibre.
(d) None of the above.
Ans: (a) Wool.
6. Which of the following is obtained from plant?
(a) Jute fibre.
(b) Cotton fibre.
(c) Coir.
(d) All of the above.
Ans: (d) All of the above.
7. Which of the following is not correct?
(a) Jute is the outer covering of coconut.
(b) Rayon is the first man-made fibre.
(c) Silk is an animal product.
(d) Filamentous fibres are long fibres.
Ans: (a) Jute is the outer covering of coconut
8. Which of the following does not catch fire easily but melts away?
(a) Nylon.
(b) Polyester.
(c) Acrylic.
(d) All of the above.
Ans: (d) All of the above.
9. Cotswool is a mixture of:
(a) Cotton and silk.
(b) Silk and wool.
(c) Cotton and wool.
(d) Wool and Nylon.
Ans: (d) Wool and Nylon.
10. Which of the following fabrics is made by the plain weave?
(a) Mulmul.
(b) Cambric.
(c) Organdy.
(d) All of the above.
Ans: (d) All of the above.
11. Denim is made by:
(a) Plain weave.
(b) Twill.
(c) Satin weave.
(d) None of the above.
Ans: (b) Twill.
12. Which of the following fibres is a good conductor of heat?
(a) Cotton.
(b) Wool.
(c) Silk.
(d) Nylon.
Ans: (a) Cotton.
