alleryStart learning →Silkworms in a rearing farm are fed on the leaves of which plant?
- Neem
- Mulberry
- Banyan
- Peepal
Show answer and solution
Correct answer: B. Mulberry
Mulberry leaves are the food of the domestic silkworm, which grows rapidly on them before spinning.
Olympiad (Class 7) Fibre to fabric — practice questions
Explore 52 free Fibre to fabric questions in Olympiad (Class 7) Science. Open each question or exercise to read its content, reference answers and available explanation.
Practise Fibre to fabric with Quill →Fibre to fabric questions and exercises with answers
Showing questions 1–30 of 52.
Silkworms in a rearing farm are fed on the leaves of which plant?Read the answer and worked solution →Cultivating silkworms to obtain silk is known as what?Read the answer and worked solution →The silk fibre is spun by the silkworm to form a protective covering called what?Read the answer and worked solution →A silkworm is actually which stage of the silk moth life cycle?Read the answer and worked solution →Which protein is the main component of wool?Read the answer and worked solution →Cotton and wool differ chemically because cotton is mainly which substance?Read the answer and worked solution →The cutting of the woollen fleece from a sheep is called what?Read the answer and worked solution →Washing shorn wool in tanks to remove grease, dirt and sweat is called what?Read the answer and worked solution →Raw wool straight off a sheep is also known by which name?Read the answer and worked solution →Which useful substance, removed from raw wool, goes into hand creams?Read the answer and worked solution →Which wool fibres, after washing, are used to make soft and bulky yarn?Read the answer and worked solution →A yarn made from long combed wool fibres, smooth and strong, is called what?Read the answer and worked solution →The natural wave present in each wool fibre is called what?Read the answer and worked solution →Why does wool cloth keep the body warm in winter?Read the answer and worked solution →Which statement about the crimp of fine and coarse wool is correct?Read the answer and worked solution →A woollen sweater is washed roughly in hot water and shrinks into a stiff mat. This is due to what?Read the answer and worked solution →Which two conditions with wool together speed up felting?Read the answer and worked solution →Why are wool garments chosen for firefighters?Read the answer and worked solution →Which sheep breed gives the finest and most valuable wool?Read the answer and worked solution →Which single feature mainly decides the quality and price of wool?Read the answer and worked solution →Which animal, other than the sheep, gives Angora and cashmere wool?Read the answer and worked solution →Which group of animals gives wool-like fibre?Read the answer and worked solution →Why is wool washed with a special, enzyme-free detergent?Read the answer and worked solution →What does the term recycled wool or shoddy mean?Read the answer and worked solution →Recycled wool fabric is usually inferior to the original because its fibres are what?Read the answer and worked solution →Which part of a fleece is generally the best and most valuable wool?Read the answer and worked solution →Wool is used to cover piano hammers in the form of what?Read the answer and worked solution →Which two proteins make up the silk emitted by a silkworm?Read the answer and worked solution →Which silk protein acts as the gum that sticks the filaments together?Read the answer and worked solution →Boiling cocoons in hot water to remove the gum is called what?Read the answer and worked solution →
Worked practice questions
Cultivating silkworms to obtain silk is known as what?
- Apiculture
- Sericulture
- Pisciculture
- Horticulture
Show answer and solution
Correct answer: C. Pisciculture
Sericulture means silk farming, the rearing of silkworms for their silk.
The silk fibre is spun by the silkworm to form a protective covering called what?
- Larva
- Pupa
- Cocoon
- Fleece
Show answer and solution
Correct answer: C. Cocoon
The caterpillar wraps itself in a cocoon made of one long silk filament.
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