JNTU
JNTU B.Tech II FABRIC MANUFACTURE I Previous Question Paper (February - 2024 - R18)
Note: Part A is compulsory (25 marks). In Part B, answer any one question from each unit (50 marks).
Part A
What is the principle of Splicing?
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What is the purpose of Ribbon breaker? Explain how it works.
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Mention different systems of Weft preparation.
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Explain about anti-bound let off in beam warping.
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What is the difference between Positive and Negative Creels?
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What is meant by Wet splitting? Briefly explain.
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What is the need for after waxing in sizing?
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Why Motion of combs in head stock is required? Explain.
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What are loom specifications mentioned for a loom?
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What is the difference between Positive shedding and Negative shedding?
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Part B
Classify winding machines used in yarn preparation for weaving.
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Explain about functioning Electronic Slub catcher on high speed cone winding machine.
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Explain about faults in cone winding and remedies for the same.
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Calculate the production (kgs) per shift of an Autoconer producing 40’s cotton yarn with drum speed is 1080 meters / min and running with an efficiency of 98%. No of winding drums on the winder is 86.
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Define weft winding. What are different types of weft winding machines?
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Explain the importance and principle of bunch formation on a Pirn.
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Draw a simple sketch showing Beam warping. Explain the process.
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Calculate the production (meters) of warp that can be produced per day of 8 Hours on a high-speed beam warping machine, if the warping speed is 500 meters / min. The overall efficiency is 75%. No of ends is 525 and count of yarn is 30’S.
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What are the objectives of Sizing? Explain different types and forms of Sizing.
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What are various elements of Sow box. Briefly explain.
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Explain about stretch control in Sizing.
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Explain different methods of drying the sized warp.
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What is the need for control of moisture in sized warp? How it can be controlled?
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Explain about migratory behavior of warp ends in sizing.
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Explain about any two sizing faults and mention the remedies for same.
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A warp containing 2800 ends is required to be sized to 25%. The length of sized warp on the beam is required to be 1080 yards. If the count of yarn is 40’S. Find i) Weight of size to be put on the warp, ii) The weight of sized warp, iii) The count of the sized warp.
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Explain about heald reversing motion on a plain Tappet shedding loom.
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Mention various elements in picking mechanism and write their functions.
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Classify the types of Looms.
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What is the difference between Early shedding and Late shedding.
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A loom is running at 300 rpm and producing cloth with 64 picks per inch. If the efficiency of the loom is 88 %. Calculate the production of the loom per shift of 8 hours.
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