Tag: animal fibre

Questions Related to animal fibre

Which of the following does not yield wool?

  1. Yak

  2. Camel

  3. Goat

  4. Woolly dog


Correct Option: D
Explanation:

Yak, Camel, and Goat all yield wool.

Woolly dog does not yield wool

The correct order in the processing of wool is:

  1. $Shearing - sorting - scouring - fiber spinning - fiber dying - rolling$

  2. $Shearing - scouring - sorting - fiber spinning - fiber dying - rolling$

  3. $Shearing - scouring - sorting - fiber dying - fiber spinning - rolling$

  4. $Shearing - sorting - scouring - fiber spinning - rolling - fiber dying$


Correct Option: B
Explanation:

The correct order in the processing of wool is = $Shearing - scouring - sorting - fiber spinning - fiber dying -  rolling$

The sheared skin with hair is thoroughly washed in tanks to remove grease, dust and dirt. This is called :

  1. cleansing

  2. rearing

  3. shearing

  4. scouring


Correct Option: D
Explanation:

Scouring,the term ‘scouring’ applies to the removal of impurities such as oils, wax, gums, soluble impurities and dirt commonly found in textile material to produce a hydrophilic and clean cloth.

Wool is obtained from _______ of sheep.

  1. skin

  2. toes

  3. fleece

  4. All of the above


Correct Option: C
Explanation:

Wool is obtained from fleece (hair) of sheep or yak.

The process of obtaining wool is:

  1. shearing, sorting, scouring and dyeing

  2. shearing, scouring, sorting and dyeing

  3. scouring, sorting, shearing and dyeing

  4. sorting, scouring, shearing and dyeing


Correct Option: B
Explanation:

The various steps for processing fibers into wool are as follows:

  • Shearing: The fleece of the sheep along with a thin layer of skin is removed from its body.
  • Scouring: The sheared skin with hair is thoroughly washed in tanks to remove grease, dust, and dirt.
  • Sorting: The hairy skin is sent to a factory where the hair of different textures is separated or sorted.
  • The small fluffy fibers, called burrs, are picked out from the hair.
  • The fibers can be dyed in various colours, as the natural fleece of sheep and goats is black, brown or white.
  • The fibers are straightened, combed and rolled into yarn.

Silk fibre is obtained from :

  1. fleece of sheep

  2. cotton ball

  3. cocoon

  4. shiny jute stalk


Correct Option: C
Explanation:

$C$

Cocoon is a protective case of silk or similar fibrous material spun by the larvae of moths and certain other insects as a cover for the pupa. The cocoon is made of a thread of raw silk from $300$ to about $900 m (1,000 to 3,000 ft)$ long. The fibres are very fine and lustrous, about $10 μm (0.0004 in)$ in diameter.

Animal fibres are made of :

  1. cellulose

  2. protein

  3. fats

  4. animal cells


Correct Option: B
Explanation:

Protein ,animal fibers  are natural fibers that consist largely of particular proteins. Instances are silk, hair/fur (including wool) and feathers. The animal fibres used most commonly both in the manufacturing world as well as by the hand spinners are wool from domestic sheep and silk.

Identify the Indian breeds of sheep:

  1. Lohi

  2. Marwari

  3. Nali

  4. All of these


Correct Option: D
Explanation:
Lohi and Marwari, 
The Lohi sheep is found in southern Punjab in India. It is used for its carpet quality wool and meat production. The body is white and the head is usually tan, black or brow.  Marwadi,the name originates from the home tract of the breed: Marwad. The breed resembles black-head Persian Sheep  but is smaller in size and has good fleece. Found in Jodhpur, Jalore,Nagapur,Peli and Barmer districts, extending up to Ajmer and Udayapur districts of Rajasthan and the Jeoria region of Gujrat The breed is being improved through selection for fleece weight and carpet quality.

_____________fibres are made from cellulose.

  1. Vegetable 

  2. Animal 

  3. Both vegetable and animal 

  4. None of them


Correct Option: A
Explanation:

Cellulose is found in plant product.

So, vegetable fibres are made from cellulose.

The process of removing wool from sheep is called__________.

  1. Rearing

  2. Cearing

  3. Shearing

  4. Reeling


Correct Option: C
Explanation:

$C$, sheep shearing is the process by which the woolen fleece of a sheep is cut off. The person who removes the sheep's wool is called a shearer Typically each adult sheep is shorn once each year (a sheep may be said to have been "shorn" or "sheared", depending upon dialect). The annual shearing most often occurs in a shearing shed a facility especially designed to process often hundreds and sometimes more than $3,000$ sheep per day.