Class 7 Fibre To Fabric CBSE Questions & Answers

Class 7 · Fibre To Fabric

This is Science Class 7 Fibre to Fabric CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
Select the correct sequence of to obtain cloth.
  • A
    Fibre > fabric> yarn
  • B
    Fabric > fibre> yarn
  • C
    Fibre> yarn>fabric
    Correct
  • D
    Yarn > fabric> fibre
2
Weaving is different form knitting as in weaving
  • A
    Weaving is done with machine but knitting by hand
  • B
    Two set of yarn is used but in knitting only one
    Correct
  • C
    Both use two sets of yarn but knit is done by machine
  • D
    Weaving is faster than knitting
3
Reeling is the process of making
  • A
    Yarn from fibre
    Correct
  • B
    Fibre from yarn
  • C
    Making spun of fibre
  • D
    Making bundle of fibre
4
In hot humid conditions, which of the following fabrics will you choose for wearing?
  • A
    Silk
    Correct
  • B
    Wool
  • C
    Cotton
  • D
    Nylon
5
Big reels on which yarn is wound is called
  • A
    Stoker
  • B
    Comb
  • C
    Spun
  • D
    Bobbins
    Correct
6
The yarn which moves lengthwise during weaving is called
  • A
    Warp
    Correct
  • B
    Longitude
  • C
    Transverse
  • D
    Swap
7
Which one is a type of synthetic fibre?
  • A
    Jute
  • B
    Silk
  • C
    Cotton
  • D
    Nylon
    Correct
8
Science of rearing silk is called
  • A
    Agriculture
  • B
    Tissue culture
  • C
    Sericulture
    Correct
  • D
    apiculture
9
Why sheep after shearing is deepen into alcohol solution?
  • A
    To remove the dirt and grease
  • B
    To prevent infection
    Correct
  • C
    To make the body soft
  • D
    To clean the sheep
10
Hair of sheep traps the air that help them to keep warm as
  • A
    Air make them buoyant
  • B
    Air help them in breathing
  • C
    Air is good conductor of heat
  • D
    Air is poor conductor of heat
    Correct
11
Selective breeding is the method to
  • A
    Obtain sheep with soft under hair
    Correct
  • B
    All of these
  • C
    Highly adaptive varieties
  • D
    Obtain high milk yielding sheep
12
Yak wool is common in
  • A
    Rajasthan and Madhya Pradesh
  • B
    Jammu and Kashmir
  • C
    Nepal and Bhutan
  • D
    Tibet and Ladakh
    Correct
13
Shearing do not hurt the sheep because
  • A
    Upper most skin is very thick
  • B
    Upper most layer is spongy
  • C
    Upper most skin layer contain cuticle
  • D
    Upper most skin of sheep is dead
    Correct
14
Which two Indian breeds of sheep are mostly found in Gujarat?
  • A
    Marwari and Lohi
  • B
    Lohi and Nali
  • C
    Patanwadi and Lohi
  • D
    Marwari and Patanwadi
    Correct
15
Mulberry silk is best silk is best because
  • A
    It is thick and hard
  • B
    It is elastic and have long fibre
  • C
    It is thin, soft and elastic
  • D
    It is soft and can be coloured easily
    Correct