Fabric Manufacturing-I exam (YM 331) from BUTEX affiliated colleges' 2020 Level-3 Term-I finals, worth 105 marks. Questions cover tappet, dobby and jacquard shedding with loom production calculations, picking mechanisms with force numericals, and beat-up comparisons.
Level-3 Term-I, Final Exám-2020
Subject: Fabric Manufacturing-I (Code: YM 331)
Time: 3.0 Hrs. Full Marks: 105
(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) Define shed and shedding. Why shedding is done during weaving?
(b) Sketch and describe the principle of tappet shedding mechanism.
(c) Find out the production in meter of a weaving mill from the following particulars:
No. of looms = 160, Picks/min = 210, PPI = 50, Efficiency = 80%.
[5.5+7+5=17.5]
2. (a) State the scopes of dobby shedding.
(b) Briefly describe the working procedure of positive dobby shedding mechanism.
(c) Compare among tappet, dobby and jacquard shedding.
[5+7.5+5=17.5]