Fibre to Fabric

In the life cycle of silkworm, which stage comes first?

1. Cocoon
2. Caterpillar
3. Cocoon with developing moth
4. Adult

Complete the correlation: Silk worm : Cocoon :: Wool : ___

1. Hair of rabbit
2. Cotton plant
3. Fleece of sheep
4. Jute of hemp

Which of the following is made from coconut fibres?

1. Sweaters
2. Shoes
3. Mattresses
4. Saris

How is yarn made from fibre?

1. ginning and weaving
2. weaving and knitting
3. weaving and spinning
4. spinning

Flax is a member of

1. animal
2. synthetic fibre
3. plant
4. fabric

Which materials were used for clothes in ancient times?

1. Animal skins
2. Grass
3. Vines
4. All of these

Which of the following statements is not true?

1. Fabric is made of yarn
2. Jute is the outer covering of coconut
3. Polyester is a synthetic fibre
4. Silk fibre is obtained from silk worms

Which of the following is not a stage in the life cycle of silkworm?

1. Pupa
2. Caterpillar
3. Gamete
4. Sericulture

Which of the following disease is most common among the workers of sericulture industry?

1. respiratory and skin disease
2. cancer
3. T.B.
4. cancer and T.B.

Which fibres are used to make clothes?

1. natural
2. synthetic
3. both natural and synthetic
4. none of these

At what intervals of time does a silkworm have the sleeping periods?

1. About six days
2. A week
3. A fortnight
4. A month

How many sleeping periods does a silkworm have during the whole feeding period?

1. 2
2. 4
3. 8
4. 16

Which of the following can provide hairs as wool source?

1. Camel
2. Llama
3. Alpaca
4. All of these

Scientific name of mulberry is

1. morus alba
2. triticum aestivum
3. zea maize
4. mulberry

Damaged cocoons are used to make inferior silk called

1. raw silk
2. spun silk
3. both raw silk and spun silk
4. none of these

The fleece is combed to remove

1. burrs
2. dusts
3. low quality hair
4. none of these

Wool can dissolve in

1. Acid
2. Bases
3. Both acids and bases
4. None of these

Twisting of silk is called

1. throwing
2. shedding
3. shearing
4. none of these

The best seasons for shearing is

1. spring and autumn
2. complete hot season
3. summer
4. none of these

Science of raising silk worms to obtain silk cocoons is called

1. Sericulture
2. Roving
3. Horticulture
4. None of these

The splitting of woolen web into fine thin strands for spinning is called

1. Roving
2. Sericulture
3. Reeling
4. Moulting

The fabric made from used wool, by carding, spinning and weaving is called

1. shoddy
2. kemp
3. cocoon
4. none of these

Cocoon is

1. the fibre cover spun by the silk larva around its body on changing into pupa state
2. the stage of larva
3. Both a and b
4. None of these

The thread obtained by the reeling process is called

1. fiber
2. raw silk
3. both fiber and raw silk
4. none of these

Caterpillars spin their cocoons at which stage?

1. Pupa stage
2. Larval stage
3. Both pupa and larval stage
4. None of these

Shedding of skin by caterpillars is called

1. reeling
2. moulting
3. shearing
4. none of these