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MCQs

Total Questions : 197 | Page 18 of 20 pages
Question 171. In partial orientation structure, chain molecules approach but donot achieve alignment parallel to
  1.    fibre axis
  2.    fibre width
  3.    fibre length
  4.    fibre density
 Discuss Question
Answer: Option A. -> fibre axis
Answer: (a).fibre axis
Question 172. Length /width ratio ranges from infinity for
  1.    long fibrils
  2.    short fibrils
  3.    very long fibrils
  4.    moderate fibrils
 Discuss Question
Answer: Option C. -> very long fibrils
Answer: (c).very long fibrils
Question 173. Folds can be removed using
  1.    drawing
  2.    drafting
  3.    spinning
  4.    weaving
 Discuss Question
Answer: Option B. -> drafting
Answer: (b).drafting
Question 174. Alcoholysis's value in mercerized cotton is calculated to be
  1.    30
  2.    15
  3.    10
  4.    25
 Discuss Question
Answer: Option D. -> 25
Answer: (d).25
Question 175. Spherulitic structure starts from crystallization as folded chain lamellae on
  1.    separate nuclei
  2.    same nuclei
  3.    double nuclei
  4.    combined nuclei
 Discuss Question
Answer: Option A. -> separate nuclei
Answer: (a).separate nuclei
Question 176. Concept of crystalline and non crystalline regions results into details regarding fibre
  1.    structure
  2.    density
  3.    bonding
  4.    strength
 Discuss Question
Answer: Option A. -> structure
Answer: (a).structure
Question 177. Diffraction evidence that structure is a mixture of order and disorder is supported by values of
  1.    density
  2.    moisture uptake
  3.    analytical techniques
  4.    all of above
 Discuss Question
Answer: Option D. -> all of above
Answer: (d).all of above
Question 178. In lamellar crystals, length/width ratio is regarded as
  1.    thickness/width
  2.    length/thickness
  3.    thinness/width
  4.    length/thinness
 Discuss Question
Answer: Option A. -> thickness/width
Answer: (a).thickness/width
Question 179. What is percentage accessibility of rayon measured by exchange of hydroxyl hydrogens for deutrium?
  1.    99
  2.    78
  3.    53
  4.    50
 Discuss Question
Answer: Option B. -> 78
Answer: (b).78
Question 180. Value of X-ray diffraction in cotton is calculated to be
  1.    27
  2.    65
  3.    40
  4.    49
 Discuss Question
Answer: Option A. -> 27
Answer: (a).27

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