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)