Wet Processing-I question paper (WPE 205) from the 2024 Level-2 Term-I final examination conducted by Bangladesh University of Textiles for affiliated colleges. Topics include scouring, bleaching, singeing, surfactants, and dye classification.
Level-2 Term-I, Final Exám-2024
Subject: Wet Processing-I (Code: WPE 205)
Time: 3.0 Hrs. Full Marks: 72
(Use separate answer script for Part: A and Part: B)
(All parts of a question must be answered consecutively)
Part: A
(Answer any three questions)
1. (a) Write the mechanism of scouring.
(b) How can you estimate the scouring effect? Explain.
(c) Describe the kier boiler scouring process.
[3+4+5 = 12]
2. (a) How can you estimate the bleaching effect?
(b) Write the effect of process parameter in bleaching.
(c) Write the advantage and disadvantage of sodium hypochlorite bleaching over bleaching power.
[3+4+5 = 12]