Question 31. Consider the following assertion [a] and reason [r] and choose the most appropriate answer [a] Nylon 6 is polymerized using only single monomer caprolactum [r] Synthesis of Nylon 6 is basically an addition polymerization

Question 32. The particular integral of d2y/dx2 + 5 dy/dx + 6y = e2x is

Question 33. The fibre that will float on water is

Question 34. The chemical that is used to convert soda cellulose to sodium cellulose xanthate in the manufacture
of viscose rayon is

Question 35. The fibre which has a mineral origin is

Question 36. Drawing of synthetic filament does not lead to an increase in

Question 37. The range of spinning speed (m/min) used in the manufacture of partially oriented polyester yarn is

Question 38. Consider the following Assertion [a] and Reason [r] [a] In the case of durable press finishing of cotton fabrics, while the citric acid can be used as a
crosslinking agent, oxalic acid cannot be. [r] The mechanism of crosslinking requires formation of anhydride in the intermediate step. Determine the correctness or otherwise of the above Assertion [a] and Reason [r]

Question 39. Consider the following Assertion [a] and Reason [r] [a] In the case of minimum application technique, compared to the conventional rolls of a typical
padding mangle, Roberto rolls substantially reduce the wet pick up. [r] The Roberto rolls are connected to vacuum pump to facilitate removal of liquor from the fabric. Determine the correctness or otherwise of the above Assertion [a] and Reason [r]

Question 40. Four polyester and four cotton carded slivers of the same count and mass CV of 4.16 % are drawn together
keeping a draft of 8 on a breaker drawframe. Two slivers from breaker drawframe are further drawn along
with the four cotton carded slivers keeping a draft of 6 on a finisher drawframe. The polyester (%) in the final sliver is approximately