FOT-V Class Test

What does the term *singe* literally mean?

• To wash thoroughly

• To burn superficially

• To dissolve completely

• To stretch under tension

Which process removes protruding fibers from the surface of the fabric?

• Desizing

• Singeing

• Bleaching

• Mercerisation

Which of the following is NOT an objective of singeing?

• Improving fabric luster

• Reducing pilling

• Making fabric flame-retardant

• Enabling clear printing

After singeing, fabric immediately enters:

• Drying chamber

• water bath

• Mercerisation unit

• Bleaching tank

What is the main risk if fabric is singed while wet?

• Increased luster

• Increased scorching

• Decreased strength loss

• Better dye absorption

Which type of singeing involves fabric passing directly over flames?

• Indirect singeing

• Hot plate singeing

• Direct singeing

• Roller singeing

What is the main objective of desizing?

• Remove waxes

• Remove starch/sizing agents

• Add strength

• Improve luster

Which desizing method uses microorganisms to break down starch?

• Acid desizing

• Enzymatic desizing

• Rot steeping

• Oxidative bleaching

Which enzyme type is commonly used in enzymatic desizing?

• Lipase

• Amylase

• Protease

• Cellulase

What is the primary objective of scouring?

• Removal of natural fats, waxes, and impurities

• Improving tensile strength

• Whitening the fabric

• Adding luster