Textile Processing Quiz

BARIUM ACTIVITY NUMBER METHOD IS USED TO EVALUATE EFFICIENCY OF

• BLEACHING PROCESS

• SCOURING PROCESS

• SINGEING PROCESS

• MERCERIZATION PROCESS

MACHINERY USED FOR MERCERIZATION OF COTTON IS

• PAD-CHAIN

• JIGGER

• J-BOX

• LOOP AGER

MERCERIZATION PROCESS IS CARRIED OUT AT

• ROOM TEMPERATURE

• 500C

• AT BOIL

• 800C

Sodium hypochlorite produces better whiteness as compared to hydrogen peroxide

• True

• False

Half bleach effect is obtained by bleaching using

• Sodium hypochlorite

• Hydrogen peroxide

• Sodium chlorite

• Sodium chloride

Permanent whiteness is obtained by using

• Hydrogen peroxide

• Hypochlorite

• Sodium Hydroxide

• Potassium Permanganate

Hydrogen peroxide bleaching is type of

• reductive bleaching

• oxidative bleaching

• acid beaching

• none of these

The widely used stabilizer in case of hydrogen peroxide bleaching is

• sodium carbonate

• sodium bicarbonate

• sodium hydroxide

• sodium silicate

Temperature at which sodium hypochlorite bleaching done is

• 50 c

• room temperature

• 80 c

• boiling temperature

The presence of PVA can be confirmed by taking

• pH test

• Potassium dichromate test

• Astrazon Red test

• Solvent test