Scouring Process MCQ (Multiple Choice Questions) PDF Download

The fourth and fifth vats in scouring process is uses for

1. rinsing the clean wool
2. scouring the wool
3. eliminating earth particles
4. all of above

The dirt adhered to the wool absorbs water and swells, reaching the diameter

1. slightly bigger than the fiber
2. 2/3 times bigger than the fiber
3. three four times bigger than the fiber
4. five times bigger than the fiber

The second and third vats in scouring process is uses for

1. scouring the wool
2. eliminating earth particles
3. rinsing the clean wool
4. all of above

In second stage, the greasy substances are recovered by

1. heating the bath to 90 degrees
2. subsequent centrifugation
3. subsequent centrifugation and centripetation
4. heating the bath to 90 degrees and subsequent centrifugation

After scouring, the residual grease must not be greater than

1. 0.01
2. 0.02
3. 0.03
4. 0.04