Wool Fibre Quiz

What is the primary source of wool?

• Synthetic fibers

• Different varieties of sheep

• Cotton plants

• Silk worms

Which country is NOT a major producer of wool?

• China

• Australia

• Canada

• Argentina

What is the diameter range of fine wool fibers?

• 30-40 µm

• 10-15 µm

• 15-23 µm

• 25-30 µm

What process involves cutting the woolen fleece from sheep?

• Scouring

• Shearing

• Bailing

• Sorting

Which type of wool is known for its high elasticity and resilience?

• Angora

• Mohair

• Cashmere

• Merino wool

What is the main component of wool fibers?

• Keratin

• Cellulose

• Silk proteins

• Polyester

What is the purpose of scouring in wool processing?

• To shear the sheep

• To sort the wool

• To remove impurities

• To dye the wool

What is the typical moisture regain percentage of wool fiber?

• 5%

• 16%

• 10%

• 20%

Which of the following is a disadvantage of medullated wool fibers?

• Lower thermal insulation

• Increased elasticity

• Higher strength

• Better dye uptake

What is the effect of alkaline substances on wool?

• Strengthens the fiber

• Dissolves the fiber

• No effect

• Makes it more elastic