Lakshya Education MCQs

Question: Wool can be obtained from ______.
A.Sheep, goat and caterpillar
B.Goat, cat and sheep
C.Yak, caterpillar and cat
D.Sheep, goat and yak
Answer: Option D
: D

Wool and silk fibres are obtained from animals. Wool can be obtained from sheep, angora goat, yak, llama, alpaca, and even camels. Silk is obtained from cocoons of silkworm.

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Question 1. The process of taking out threads from the coccons, to obtain silk fibres is called ________.
  1.    reeling
  2.    rolling
  3.    processing
  4.    extracting
Answer: Option A
: A

The process of taking out threads from the cocoon for obtaining silk is called reeling of silk. Reeling is done in special machines, which unwind the threads or fibres of silk from the cocoon after boiling the cocoons.
Question 2. Wool is obtained from the:
  1.    fleece of sheep
  2.    stem of jute plant
  3.    seeds of cotton plant
  4.    cocoons of silkworms
Answer: Option A
: A

Wool is an animal fibre obtained from the fleece of animals like sheep, goats, camels, alpacas, llamas and yaks.

Silk is also an animal fibre. It is obtained from the cocoons of silkworms.

However, jute and cotton are plant fibres. Jute is obtained from the stem of the jute plant while cotton is obtained from the seeds of cotton plants.
Question 3. All of the following are examples of fibres except:
  1.    silk
  2.    polyester
  3.    nylon
  4.    thermocol
Answer: Option D
: D

Fibreis a very thin, thread-like strand from which a material is made. It is categorized under two categories:
1. Natural fibres
2. Synthetic fibres
Nylon and polyester are examples of synthetic fibres and silk is a natural fibre obtained from cocoon of silkworm. Thermocol is not a thin, thread like strand. It is not a fibre.
Question 4. Silkworms are a kind of worms which live on mulberry trees.
  1.    True
  2.    False
  3.    sorting
  4.    reeling
Answer: Option B
: B

Actually, silkworms are not worms, but the larvae or caterpillars hatched from the eggs of the silk moth.
The silk moth passes through the larva and pupa stages during its development after hatching from the egg and forms an adult silk moth.

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