JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech II Year GENERAL TEXTILE TECHNLOGY Previous Question Paper (April/May - 2023 - R18)
Note: i) Question paper consists of Part A, Part B. ii) Part A is compulsory, which carries 25 marks. In Part A, Answer all questions. iii) In Part B, Answer any one question from each unit. Each question carries 10 marks and may have a, b as sub questions.
Part A
How many meters of yarn will be present in 1 Kg of 60’s Cotton yarn.
Answer
The length of yarn in meters is calculated using the formula: Length = (Count × 840 × 0.9144) meters per pound, converted to kilograms. For 60's cotton count, 1 Kg contains approximately 101,601 meters.
What are essential chemical properties of textiles fibres? explain about any one.
Answer
Essential chemical properties include chemical resistance, moisture regain, solubility, and reactivity to dyes. Moisture Regain is the ability of a fiber to absorb moisture from the atmosphere, expressed as a percentage of its dry weight, which significantly influences comfort, static electricity, and processing behavior.
What is the difference between textured yarn and stretch yarn?
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Classify filament yarns based on orientation and number of filaments.
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What are the general characteristics of Linen fibres?
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Explain different methods of Retting Jute fibres.
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What is the difference between Wild silk and Domesticated Silk?
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Briefly explain about different types of Silk fabrics.
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State the general characteristics of Bamboo fibres.
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Write the burning characteristics of common textile fibres to identify them.
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Part B
Explain about desirable properties of textile fibres.
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Classify the systems of yarn count. Mention the length and weight units in each system.
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Classify Synthetic textile fibres based on chemical structure.
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Briefly explain different physical properties to be considered for textile fibres.
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Mention any five Indian hybrid varieties of cotton and mention the properties.
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Explain the morphological structure of Cotton using simple sketch.
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Explain about chemical properties of Cotton.
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Explain the process stages in chemical processing of textile materials.
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Explain the properties of Linen fibres.
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Classify Wool fibres based on type of sheep. Briefly explain about them.
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Explain about wool fibre morphology.
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Explain the physical properties of Wool.
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Briefly explain about different methods of Cocoon cooking.
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Explain about Cottage based reeling of Silk.
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Explain the chemical properties of Silk.
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Explain about degumming of Silk. Why this process is necessary for Silk?
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Explain the properties common to all protein fibres.
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Compare Jute and Flax in terms of properties and characteristics.
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Draw the simple sketches showing the microscopic appearance of Wool and Silk and state the identifying features.
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Write short notes on Banana fibres and Coir Fibres.
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