Fibre to Fabric (Class VII)
| Description: Fiber to Fabric | |
| Number of Questions: 18 | |
| Created by: Supriya Thakkar | |
| Tags: Fiber to Fabric Wool Silk Obtaining and Processing of Wool Wool and Its Sources Fibre to Fabric Life Cycle of Silk Moth Silk and the Life History of Its Source Silk: Source and Processing Rearing of Silk Worm and Processing of Silk Types of Silk |
Which of the following is not a wool bearing animal?
Fabrics made from which of the following natural materials have the greatest ability to retain shape?
Which of the following statements is/are false?
a. Wool is the soft curly fibre obtained from the fleece of domesticated sheep. b. Angora rabbits are reared in Punjab and Rajasthan for their wool. c. The number of crimps per centimeter determines the fineness of the wool fibre.
Which of the following is not a property of wool?
Which of the following countries is the largest producer of wool?
Which of the following statements is/are false?
a. Raw wool contains an oily substance called yolk. b. The yolk consists of lanolin that is used in the preparation of cosmetics. c. In the process of shearing, the fleece is cut away from the skin of the sheep.
Which of the following is not an example of worsted fabric?
Which of the following statements is/are false?
a. Merino wool, obtained from merino sheep, is the poorest quality of wool. b. In silk industry, fibre from the cocoon of mulberry silk moth is used. c. Spider silk is used for the cross-hairs of a telescope and other optical instruments.
In which of the following countries was silk first discovered and then developed?
Which of the following is a natural protein fibre?
The science of raising silkworms, so as to obtain silk cocoons is called
Match the following:
| a. Scouring | 1. It is the process of removing fleece from the sheep. |
| b. Shearing | 2. It is the process of separating wool and hair from the fleece. |
| c. Sorting | 3. It is the process of removing yolk and suint from the raw wool with a soap or a detergent. |
Match the following:
| Name | ||
| State where reared | ||
| Quality | ||
| a. Bakharwal | 1. Rajasthan | p. Coarse wool used for making blankets |
| b. Nali | 2. Jammu and Kashmir | q. Fine quality used for woollen shawls |
| c. Marwari | 3. Gujarat | r. Used for making carpets |
Which of the following silk threads is made by twisting two or more raw silk threads in only one direction?
Match the following:
| a. Fleece | 1. It is the dried perspiration of sheep found in the raw wool. |
| b. Shoddy | 2. It is the hair on the skin of sheep, etc. from which wool can be obtained. |
| c. Suint | 3. It is the fabric made from the used wool by carding, spinning and weaving. |
Which of the following varieties of silk is/are produced only in the Brahmputra valley – mainly Assam and adjoining parts of Burma?
a. Eri silk b. Tassar silk c. Muga silk
Match the following:
| Type of silk thread | Turns/cm |
| a. Organzine | 1. 8 to 12 turns/cm |
| b. Crepe | 2. 4 turns/cm |
| c. Tram | 3. 16 to 32 turns/cm |
Match the following:
| Sheep breed | |
| State where reared | |
| a. Rampur Bushair | 1. Gujarat |
| b. Lohi | 2. Punjab |
| c. Patanwadi | 3. Uttar Pradesh |