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Olympiad Test: Fibres To Fabrics -1


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15 Questions MCQ Test Science Olympiad Class 7 | Olympiad Test: Fibres To Fabrics -1

Olympiad Test: Fibres To Fabrics -1 for Class 7 2022 is part of Science Olympiad Class 7 preparation. The Olympiad Test: Fibres To Fabrics -1 questions and answers have been prepared according to the Class 7 exam syllabus.The Olympiad Test: Fibres To Fabrics -1 MCQs are made for Class 7 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Olympiad Test: Fibres To Fabrics -1 below.
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Olympiad Test: Fibres To Fabrics -1 - Question 1

An expensive and rare fibre called Cashmere is obtained from

Olympiad Test: Fibres To Fabrics -1 - Question 2

The small fluffy fibres are

Olympiad Test: Fibres To Fabrics -1 - Question 3

Silk moth feed on

Detailed Solution for Olympiad Test: Fibres To Fabrics -1 - Question 3

Silk moths feed only on mulberry leaves, hence these silk moths are also called as mulberry silk moths.

Olympiad Test: Fibres To Fabrics -1 - Question 4

Which of these is a synthetic fibre?

Olympiad Test: Fibres To Fabrics -1 - Question 5

The life cycle of silkworm is

Olympiad Test: Fibres To Fabrics -1 - Question 6

Suitable temperature for eggs of silkworm to hatch is:

Olympiad Test: Fibres To Fabrics -1 - Question 7

Which of the following is the function of hair in animals?

Detailed Solution for Olympiad Test: Fibres To Fabrics -1 - Question 7

Hair trap a lot of air and it keeps animal warm. 

Olympiad Test: Fibres To Fabrics -1 - Question 8

Removal of fleece of sheep with skin is

Olympiad Test: Fibres To Fabrics -1 - Question 9

______ and ______ yield wool found in South America.

Olympiad Test: Fibres To Fabrics -1 - Question 10

Rearing of silk worm is

Olympiad Test: Fibres To Fabrics -1 - Question 11

______ wool is common in Ladhak and Tibet.

Olympiad Test: Fibres To Fabrics -1 - Question 12

Silk clothes are prepared from

Olympiad Test: Fibres To Fabrics -1 - Question 13

Which of the following has a great tensile strength?      

Detailed Solution for Olympiad Test: Fibres To Fabrics -1 - Question 13

Spider silk is famous for its amazing toughness, and until recently a tensile strength of 1.3 gigapascals (GPa) was enough to earn it the title of strongest natural material.

Olympiad Test: Fibres To Fabrics -1 - Question 14

Which of the following is present in silk fibre?

Olympiad Test: Fibres To Fabrics -1 - Question 15

 Which of the following comes in the empty box in the given steps of processing fibres into wool Shearing → ?  → Sorting

Detailed Solution for Olympiad Test: Fibres To Fabrics -1 - Question 15

Scouring is done after shearing the skin with fur. In scouring, the skin with fur is washed thoroughly in tanks to remove grease, dust and dirt. 

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