GATE (TF) Textile 2022 Question Paper Solution | GATE/2022/TF/29

Question 29 (Textile Technology & Fibre Science)

Determine the correctness or otherwise of the following Assertion [a] and Reason [r].
[a]: In viscose rayon manufacturing process, the fibres develop a skin-core structure.
[r]: During extrusion, the polymer molecules near the wall of the spinneret tend to orient less as compared to molecules at the centre of the fibre.

(A)Both [a] and [r] are true and [r] is the correct reason for [a]
(B)Both [a] and [r] are true and [r] is not the correct reason for [a]
(C)Both [a] and [r] are false
(D)[a] is true but [r] is false
[Show Answer]

Option D is correct

Frequently Asked Questions | FAQs

What is viscose rayon ?

Viscose rayon is a type of synthetic textile fiber that is made from cellulose, which is derived from wood pulp. Viscose rayon is produced by dissolving cellulose in a solution of sodium hydroxide and then spinning the solution into fibers. The fibers are then treated with carbon disulfide to stabilize and strengthen the fibers. Viscose rayon has a soft, smooth texture that is similar to natural fibers such as cotton, and is often used in a variety of textiles, including clothing, bedding, and upholstery. Viscose rayon is known for its ability to absorb moisture, drapability, and soft feel, making it a popular choice for clothing and other textiles. However, it also has some limitations, including a tendency to shrink and lose shape, and a tendency to become brittle over time.

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