InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Write any two significance of cotton fiber. |
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Answer» Two significance of cotton fibers are: 1. They are cool 2. They absorb moisture. |
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| 2. |
What is the process of separation of fibers from cotton seeds called? (a) spinning (b) combing (c) hand picking (d) weaving |
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Answer» Process of separation of fibers from cotton seeds called combing. |
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| 3. |
From whom the fibre of silk is obtained (a) sheep (b) goat (c) wool (d) silk worm |
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Answer» (d) silk worm |
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| 4. |
How is silk obtained from silk worm? Explain. |
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Answer» Female silk worm lays eggs on mulberry leaves. These eggs hatch into caterpillar larvae. Larvae develop by eating leaves of this plant. Caterpillars form a thread structure (cocoon) around themselves. In cocoon, caterpillar changes to pupa stage. Before the cocoon changes to adult, it is kept in sun or hot water or steam to obtain silk. |
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| 5. |
Fill in the blanks 1. The process of making thread from fibre is called ………….. 2. The rearing of silk moth is known as ………… 3. The ………. get wrapped of silk fibre and form cocoon. 4. Nylon, rayon and dacron are examples of ……….. fibres. |
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Answer» 1. spinning 2. sericulture 3. caterpillars 4. artificial |
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| 6. |
Explain the process of obtaining wool from sheep? |
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Answer» The following processes are involved in the making of wool: (a) Shearing – The hair are shaved from sheep. These hair are spin to form yarn. (b) Scouring – It is the process of making fibers free from oil, dust. etc. For this process, the hair are dipped in big tanks and then washed with water. (c) Sorting – Different types of hair are sorted. The small, soft and puffed fibers called ’Burr’ are sorted separately. (d) Reeling – The process of making threads straight and making its roll is called reeling. |
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| 7. |
Do this group activity by making 4-6 groups according to the strength of your class and present in your class.Group 1 – Explanation of animals for obtaining wool.Group 2 – Production of wool.Group 3 – Cloth from cotton plants.Group 4 – Obtaining silk cloth from silk worm. Group 5 – List of natural and artificial fiber.Group 6 – List of things formed from moonj |
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Answer» Group 1 – Animals that provide wool are sheep, goat, camel, yak, rabbit. Group 2 – Steps of Production of wool: (a) Shearing – The hair are shaved from animals. (b) Scouring – The fibers are made free from oil, dust, etc. (c) Sorting – Different types of hair are sorted. (d) Colouring – Wool is coloured in different colours. (e) Reeling – The process of making threads straight and making its roll is called reeling. Group 3 – Process of making cloth from cotton plants Following are the processes for obtaining cloth from cotton plants : (a) Cotton from cotton balls – Cotton is generally picked by hand. Fibers are then separated from the seeds by combing. This process is called ginning of cotton. (b) Spinning – The process of making yarn from fiber is called spinning. (c) Weaving – The process of arranging two sets of yarns together to make a fabric is called weaving. In knitting, a single yam is used to make a piece of fabric. Group 4 – Obtaining silk cloth from silk worm. Before the cocoon changes to adult, it is kept in sun or hot water or steam to obtain silk. The production of silk thread from fibers is called reeling. Group 5 – List of natural and artificial fibers. Natural fibers-cotton, jute, moonj, wool, silk. Artificial fibers-rayon, dacron, nylon, terycot, plastic. Group 6 – List of things formed from moonj. Huts, traditional furniture (table, mudda), eco-friendly toys, ropes and used in cots, chairs and decorative items etc. |
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| 8. |
A mono cot plant is (a) cotton (b) jute (c) moonj (d) mulberry |
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Answer» A mono cot plant is moonj. |
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| 9. |
How many types of fibers are there? |
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Answer» There are two types of fibers-natural and synthetic. |
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| 10. |
Fill in the blanks 1. The fibers obtained from plants and animals are called ………… fibers. 2. We get cotton from …………… of cotton plant. 3. The ………….. of moonj plant is used to make huts and traditional furniture. 4. The process of making yam from fiber is called …………. 5. The process of arranging two sets of yarns together to make a fabric is called ………… |
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Answer» 1. natural 2. fruits 3. stem 4. spinning 5. weaving |
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| 11. |
Jute is used in making of (a) maty (b) bag (c) door mat (d) all of these |
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Answer» (d) all of these |
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| 12. |
Mudda are made up of (a) cotton (b) moonj (c) jute (d) mustard |
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Answer» Mudda are made up of moonj |
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| 13. |
Pull a single thread from any piece of cloth. What this fiber or thread is made up of? |
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Answer» Some fibers are obtained from plants and animals while some are made by human a with the help of chemicals. |
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| 14. |
Collect knowledge about BT cotton from an ag-ricultural scientist or visit enviro.nic.in./divisions/ csnv/btcotton/bgnote./pdf. |
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Answer» BT cotton is a genetically modified crop. It stands for Bacillus thuringiensis a soil bacterium which contains a toxic gene called BT gene. The aim is to make the cotton crop resistant to bollworm. The gene is inserted into the cotton seed through genetic engineering. Now, the toxin is not harmful to the plant but BT gene becomes part of it. |
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