Subject Code: 2162907
GUJARAT TECHNOLOGICAL UNIVERSITY
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BE - SEMESTER- VI (New) EXAMINATION - WINTER 2019Subject Name: Weaving Technology-111
Time: 02:30 PM TO 05:00 PM
Total Marks: 70
Date: 11/12/2019
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Instructions:
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
Q.1
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(a) What it means by a term “Bunch”? [03]
(b) State the function of Lingo and Spring board. [04]
(c) How the Ruti let-off motion operates? Explain with a neat diagram. [07]
Q.2
(a) What it means by a term “Filamentation”? [03]
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(b) Briefly explain straight-through tie-ups. [04]
(c) State the functions of Change shaft, Protector arm, Latch, Bunter, Hammer, Feed Pawl and Magazine of Automatic pirn change mechanism. [07]
OR
(c) Write in detail about Bartlett let-off motion. [07]
Q.3
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(a) Give classification of feelers. [03]
(b) State the function of comber board and harness. [04]
(c) Which devices are to be get operated for uniform weft tension control after automatic pirn change takes place? Explain their working. [07]
OR
Q.3
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(a) What is the principle of automatic negative let-off mechanism? [03]
(b) How the Two-pronge electrical feeler works? [04]
(c) Write in detail about the Crompton & Knowvel’s type auto warp stop motion. [07]
Q.4
(a) What are the salient features of shuttle changing looms? [03]
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(b) Write about the short and long interval warp tension variation factors. [04]
(c) What kind of precautions are required for filament warping? [07]
OR
Q.4
(a) Which are the different types of Swivel looms? [03]
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(b) How the Midget feeler works? [04]
(c) Explain the construction & working of Mather & Platt’s type auto warp stop motion with a neat sketch. [07]
Q.5
(a) What are the structural characteristics of Madras Muslin fabric? [03]
(b) How the Unifil loom winder works? [04]
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(c) Explain the construction & working of single lift single cylinder jacquard. [07]
OR
Q.5
(a) What are the steps of operations for producing lappet fabrics? [03]
(b) How one can produce terry fabrics? [04]
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(c) What is casting out in jacquard? Explain with your own example. [07]
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