Fabric Sources, Fibres, Classification and Types

Question 1

What is the basic hair-like strand or filament used to make yarns and fabrics called?

Accepted Answer

Fibre

Question 2

What is a pliable, cloth-like material made by weaving, knitting, or bonding fibres or yarns together?

Accepted Answer

Fabric

Question 3

What are the two primary sources from which fibres are obtained?

Accepted Answer

Natural and Man-made

Question 4

Which of the following describes natural sources of fibres?

Accepted Answer

Materials obtained directly from nature whose chemical structure is not altered

Question 5

How are man-made fibre sources produced?

Accepted Answer

Through industrial and chemical processes

Question 6

What are the four main classes of fabrics based on their origin and chemical nature?

Accepted Answer

Animal, Vegetable, Regenerated, and Synthetic

Question 7

Which two primary types of fibres make up animal fabrics?

Accepted Answer

Wool and Silk

Question 8

Which two primary types of fibres make up vegetable or plant fabrics?

Accepted Answer

Cotton and Flax

Question 9

What is the primary type of regenerated fabric made by chemically dissolving and reconstituting natural cellulose?

Accepted Answer

Rayon

Question 10

From what substances are synthetic fabrics entirely made?

Accepted Answer

Chemical substances derived from coal, petroleum, and natural gas

Question 11

Which synthetic fabric is exceptionally strong, lightweight, elastic, resists abrasion, and is used for activewear and stockings?

Accepted Answer

Nylon

Question 12

Which highly durable, wrinkle-resistant synthetic fabric is often blended with cotton to improve ease of care?

Accepted Answer

Polyester

Question 13

Which lightweight, warm synthetic fabric closely resembles wool and is resistant to moths and sunlight?

Accepted Answer

Acrylic

Question 14

Why do fashion designers perform tests on fabric samples before cutting and sewing?

Accepted Answer

To identify fibre content, determine care, and select correct sewing tools

Question 15

During a feeling test, which fabric feels warm, springy, dry, and slightly rough or scratchy?

Accepted Answer

Wool

Question 16

What safety tool must always be used to hold the fabric sample during the burning test shown in the image?

Accepted Answer

Metal tweezers or tongs

Question 17

How do vegetable fibres like cotton and flax react during a burning test?

Accepted Answer

Burn quickly with a yellow flame, smell like burning paper, and leave light, fluffy grey ash

Question 18

Which fabric class burns slowly, self-extinguishes when removed from the flame, smells like burning hair, and leaves dark, crushable black ash?

Accepted Answer

Animal (Wool/Silk)

Question 19

What is the burning test reaction of synthetic fibres like nylon and polyester?

Accepted Answer

They melt and shrink from the flame, smell sweet/chemical, and leave a hard, uncrushable bead

Question 20

Why is it critical to perform the fabric burning test in a well-ventilated room?

Accepted Answer

To avoid inhaling toxic chemical fumes released by synthetic fabrics

Strong work.