Q. A square plain jammed fabric has yarns with circular cross-section. If the yarn diameter is 0.02 cm, then number of ends per cm (rounded off to 1 decimal place) is . Ans: 24.0-34.0
The water potential of pure water is Option 1 : Less than zeroOption 2 : More than zero but less than oneOption 3 : ZeroOption 4 : More than one
Q. If the linear density (tex) of a yarn is doubled, then percentage increase in tightness factor of single jersey knitted fabric (rounded off to 1 decimal place) is Ans: 40.0-43.0
A dioecious flowering plant prevents both Option 1 : Cleistogamy and xenogamyOption 2 : Autogamy and xenogamyOption 3 : Geitonogamy and xenogamyOption 4 : Autogamy and geitonogamy
Double fertilization is exhibited by Option 1 : GymnospermsOption 2 : AngiospermsOption 3 : FungiOption 4 : Algae
Q. The ratio of yarn tensile modulus to fibre tensile modulus, where the surface fibres are inclined at a twist angle of 25°, (rounded off to 2 decimal places) is Ans: 0.81-0.83
Q. Six carded slivers of 4 ktex each are drawn to produce a sliver of 5 ktex. The draft required (rounded off to 1 decimal place) is . Ans: 4.7-4.9
Six carded slivers of 4 ktex each are drawn to produce a sliver of 5 ktex Read More »
Q. Molecular weight of the repeat unit of poly (ethylene terephthalate) is Ans: 192.0-192.5
Molecular weight of the repeat unit of poly (ethylene terephthalate) is Read More »
Q. A blend of nylon 6 and polyester fibres when dissolved in formic acid at room temperature leaves a bone dry residue of 40% by weight. The weight fraction of polyester in the blend (rounded off to 1 decimal place) is . Ans: 0.4-0.4
A blend of nylon 6 and polyester fibres when dissolved in formic acid at room Read More »
Q. The gum present in the raw mulberry silk fibre is (A) Sericin (B) Fibroin (C) Keratin (D) Casein Ans: Sericin Sol: The outer layer of silk filament is a form of gum, or silk glue, called sericin. These two elements are present in the fibre in the proportion of about 75 parts fibroin to
The gum present in the raw mulberry silk fibre is Read More »
