Silk Processing Quiz

• It removes all impurities and natural color of silk threads
• It only removes impurities
• It only removes natural color of silk threads
• It removes all impurities except natural color of silk threads (correct)

• They turn silk threads yellow
• They give a more permanent white color (correct)
• They give a temporary white color
• They do not affect the color of silk threads

• The silkworm has a yellowish color
• The degumming process adds a yellowish tint
• The silk gum contains natural dyestuff
• The silk gum is not removed completely during degumming (correct)