Processing Silk Obtained from Cocoons

Q. What is the primary reason to boil the cocoons of the silkworm?

1. Pupa dies by boiling and silk fibre becomes loose.
2. Boiling helps incubate the cocoon.
3. Boiling makes the silk strands longer.
4. Boiling breaks the long threads into more manageable lengths.

Q.

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

__

Q.

Which among the following is not a type of silk?

1. Tassar

2. Mooga

3. Eri

4. None of the above

Q.

Rearing of silk is followed by ______.

1. Cleaning

2. Scouring

3. Sorting

4. Reeling

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

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

Q. Silk fibre is obtained from the cocoons by the process of _________.

1. sorting
2. reeling
3. scouring
4. shearing

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. Which of the following factors play a vital role in the incubation of eggs?

1. Pressure
2. Temperature
3. Heat
4. Humidity

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

1. weaving
2. reeling
3. crading

Q. Reka studied about lots of moths getting converted into a beautiful saree. The saree is most probably made up of ______ fibres.

1. silk
2. wool
3. jute
4. cotton