Processing Silk Obtained from Cocoons

Q.

How is silk fibre obtained from the cocoon?

Q.

Steps for the production of silk are given below in a jumbled order. Arrange them in their proper sequence.

(a) Eggs are warmed to a suitable temperature for the larvae to hatch from eggs.

(b) Fibers are taken out from the cocoon.

(c) After 25 to 30 days, the caterpillars stop eating and start spinning cocoons.

(d) The larvae/caterpillars or silkworms are kept in clean trays along with freshly chopped mulberry leaves.

(e) Female silk moths lay eggs.

(f) Cocoons are kept under the sun or boiled in water.

Q.

What is stifling?

Q. The process of taking out threads from the cocoons, to obtain silk fibres is called ________.

1. reeling
2. rolling
3. processing
4. extracting

Q. The process of taking out threads from the cocoon for use as silk is called ___.

Q.

What is called reeling the silk?

Q.

Question 7
Out of the following, which are the two terms related to silk production?
Sericulture, floriculture, moriculture, apiculture and silviculture.

Hints: (i) Silk production involves cultivation of mulberry leaves and rearing silkworms.
(ii) The scientific name of mulberry is Morus alba.

Q. The process of obtaining silk fibres from the cocoon is called.

1. weaving
2. reeling
3. crading

Q.

What is Pupa in Silkmoth?

Q.

What is the silk covering over caterpillars known as?

Q.

Silk fibres come from _________ of silk _________.

Q. What are the varieties of natural silk ?

1. Timber silk and Non-timber silk
2. Mulberry silk and Non-mulberry silk
3. Red silk and water silk
4. Smooth silk and ground silk

Q.

There is a large variety of silk moths which look very different from one another and the silk yarn they yield is different in texture.The silk yarn is obtained from the __ of the silk moth.

Q. Fibres are converted into yarns which are then used to make fabrics.

1. True
2. False

Q. Define the term reeling.

Q.

Rearing of silk is followed by ______.

1. Cleaning

2. Scouring

3. Sorting

4. Reeling

Q. Which is the device used to warm eggs of silk worm that facilates hatching?

Q.

Question 9

Reeling of silk is
(a) a process of making silk reels
(b) the spinning of silk fibres
(c) the weaving of silk cloth
(d) the process of taking silk threads from a cocoon

Q.

How silk obtained from silk warm explain in

500 words

Q.

Bleaching and dyeing of silk fibres are usually done during which of the following situations?

1. After the fabrics are made.
2. After the yarns are made.
3. Before the yarns are made from fibers.
4. Just before the fabrics are made.

Q. Fibres are straightened, combed and rolled during the process of _______________.

1. rolling
2. shearing
3. rearing
4. sorting

Q.

Domestication of silk worm is called

1. a) Sericulture

2. b) Pisciculture

3. c) Apiculture

4. d) Horticulture

Q.

Silk is both extracted and spun into a thread in a single process called

__

Q.

What is the reeling of the silk, how a single thread is formed?

Q.
What is the process of taking out threads from the cocoon for use as silk?

1. Reeling
2. Rearing
3. Sorting
4. Scouring

Q.

After the completion of the dyeing process, the fibres are _________ into yarn.

1. straightened, combed and rolled

2. sorted

3. spun

4. converted

Q. The process of taking out threads from the cocoon is known as of the silk.

1. reeling
2. peeling
3. weaving
4. brushing

Q.

Question 19

Steps for the production of silk are given below in a jumbled order. Arrange them in their proper sequence.

(a) Eggs are warmed to a suitable temperature for the larvae to hatch from eggs.
(b) Fibres are taken out from the cocoon.
(c) After 25 to 30 days, the caterpillars stop eating and start spinning cocoons.
(d) The larvae/caterpillars or silkworms are kept in clean trays along with freshly chopped mulberry leaves.
(e) Female silk moths lay eggs.
(f) Cocoons are kept under the sun or boiled in water.

Q.

What is called reeling the silk?

Q. The process of taking out threads from the cocoons, to obtain silk fibres is called ________.

1. reeling
2. rolling
3. processing
4. extracting