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Silk

Description: Silk
Number of Questions: 15
Created by:
Tags: 5051ss Life Cycle of Silk Moth Silk and the Life History of Its Source Reading Vocabulary Grammar
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Which of the following stages, in the life cycle of the silk moth, represents the 'SILKWORM' stage?

  1. Egg

  2. Larvae

  3. Adult

  4. Pupa

  5. None of the above


Correct Option: B
Explanation:

The larvae of the silk moth are known as silkworms.

The silkworms feed on ______________.

  1. banyan leaves

  2. rose leaves

  3. mango leaves

  4. pine leaves

  5. mulberry leaves


Correct Option: E
Explanation:

The silkworms feed on mulberry leaves.

Each cocoon is made up of a single fibre. What is the approximate length of the fibre?

  1. 500 m

  2. 250 m

  3. 1000 m

  4. 1500 m

  5. 2000 m


Correct Option: C
Explanation:

Each cocoon is made up of a single fibre. The approximate length of the fibre is about 1 km or 1000 m.

Silk fibers are directly obtained from which of the following?

  1. Adult silk moth

  2. Larvae of silk moth

  3. Cocoon of silk moth

  4. Eggs of silk moth

  5. All of the above


Correct Option: C
Explanation:

Silk fibers are directly obtained from the cocoon of the silk moth.

Which of the following is not a feature of mulberry silk?

  1. It is soft.

  2. It is lustrous.

  3. It is elastic.

  4. It can be dyed in beautiful colours.

  5. It is rarely available.


Correct Option: E
Explanation:

This statement is wrong. Mulberry silk is the most common silk available today. It is not rarely available.

How is Bombyx mori related to the Mulberry silk moth?

  1. Bombyx mori is the scientific name of the larvae of the Mulberry silk moth.

  2. Bombyx mori is the scientific name of cocoon of the Mulberry silk moth.

  3. Bombyx mori is the scientific name of the pupa of the Mulberry silk moth.

  4. Bombyx mori is the scientific name of adult Mulberry silk moth.

  5. Bombyx mori is the scientific name of the egg of the Mulberry silk moth.


Correct Option: D
Explanation:

Bombyx mori is the scientific name of adult Mulberry silk moth.

After how many days, do the silkworms form cocoon around them?

  1. 10 days

  2. 30 days

  3. 5 days

  4. 15 days

  5. 45 days


Correct Option: B
Explanation:

After approximately 30 days or one month, the silkworms form cocoon around them.

In which of the following states of India is 'Tassar silk' found?

  1. Uttarakhand

  2. Rajasthan

  3. Kerala

  4. Madhya Pradesh

  5. West Bengal


Correct Option: D
Explanation:

'Tassar silk' is found mostly in Madhya Pradesh.

On which tree does the Tassar silk moth generally feed?

  1. Mulberry trees

  2. Coconut trees

  3. Banyan trees

  4. Oak trees

  5. Jute trees


Correct Option: D
Explanation:

The Tassar silk moth generally feeds on the Oak trees.

Which of the following is the ONLY place in the world to produce Mooga silk?

  1. Assam

  2. Karnataka

  3. Chattisgarh

  4. Gujarat

  5. Madhya Pradesh


Correct Option: A
Explanation:

Assam is the only place in the world to produce Mooga silk.

Which of the following is food for the Eri worm?

  1. Papaya leaf

  2. Tulip leaf

  3. Solau leaf

  4. Som leaf

  5. Castor leaf


Correct Option: E
Explanation:

Eri worm feeds on the castor leaf.

What is the meaning of the term 'Reeling'?

  1. Processing of the silk fibres

  2. Washing of the silk fibres

  3. Taking out silk fibers from the cocoon

  4. Boiling of cocoons

  5. Sorting of cocoons


Correct Option: C
Explanation:

Reeling is the taking out of silk fibers from the cocoon.

Which of the following states is the largest producer of silk in India?

  1. Assam

  2. Karnataka

  3. Tamil Nadu

  4. Kerala

  5. Gujarat


Correct Option: B
Explanation:

Karnataka is the largest producer of silk in India.

During the larval stage, how many times do the worms shed their skin?

  1. 2

  2. 3

  3. 4

  4. 5

  5. 6


Correct Option: C
Explanation:

During the larval stage, the worms shed their skin four times.

'Antheraea mylitta' is the scientific term of ________.

  1. adult of the Tassar silk moth

  2. egg of Tassar silk moth

  3. larvae of Tassar silk moth

  4. pupa of Tassar silk moth

  5. cocoon of Tassar silk moth


Correct Option: A
Explanation:

'Antheraea mylitta' is the scientific term of the adult of the Tassar silk moth.

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