Wool Fibre Quiz

What is the primary source of wool?

• Synthetic fibers

• Cotton plants

• Different varieties of sheep

• Silk worms

Which country is NOT a major wool producer?

• China

• Argentina

• Japan

• Australia

What is the diameter range of fine wool fibres?

• 10-15 µm

• 30-40 µm

• 15-23 µm

• 25-30 µm

What process involves cutting the woolen fleece from sheep?

• Scouring

• Shearing

• Sorting

• Bailing

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

• Cashmere

• Angora

• Merino wool

• Mohair

What is the main component of wool fibres?

• Cellulose

• Polyester

• Keratin

• Silk proteins

What percentage of NaoH requires for carbonizing wool fiber?

• 7%

• 6%

• 10%

• 5%

What is the effect of alkaline substances on wool?

• Dissolves the fibre

• Makes it more elastic

• No effect

• Strengthens the fibre

Which part of the wool fibre is responsible for its insulating properties?

• Root

• Cuticle

• Cortex

• Medulla

What is the process of removing impurities from raw wool called?

• Sorting

• Grading

• Carbonizing

• Scouring