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MCQs

Total Questions : 197 | Page 2 of 20 pages
Question 11. Evidence of fibre structure is based on
  1.    chemistry of fibre
  2.    optical properties
  3.    physical properties
  4.    all of above
 Discuss Question
Answer: Option D. -> all of above
Answer: (d).all of above
Question 12. Fibers used as transducers or change with environment are called as
  1.    fine fibers
  2.    rigid fibers
  3.    smart fibers
  4.    soft fibers
 Discuss Question
Answer: Option C. -> smart fibers
Answer: (c).smart fibers
Question 13. Single cotton fibre being as thick as thumb would be
  1.    100 m long
  2.    1000 m long
  3.    10 m long
  4.    1 m long
 Discuss Question
Answer: Option A. -> 100 m long
Answer: (a).100 m long
Question 14. A second generation of high performance fibers are mostly
  1.    inorganic networks
  2.    linear polymer fibers
  3.    multi dimensional polymer fibers
  4.    both a and b
 Discuss Question
Answer: Option D. -> both a and b
Answer: (d).both a and b
Question 15. Individual fibers length/width ratio is atleast
  1.    0.043055556
  2.    1000 : 0001
  3.    1000 : 2000
  4.    0.085416667
 Discuss Question
Answer: Option B. -> 1000 : 0001
Answer: (b).1000 : 0001
Question 16. Ordinary textile fibers must be elastic upto breaking extensions between
  1.    10 and 100%
  2.    20 and 100%
  3.    5 and 100%
  4.    5 and 50%
 Discuss Question
Answer: Option D. -> 5 and 50%
Answer: (d).5 and 50%
Question 17. Elastomeric fibers require
  1.    low stretch
  2.    high stretch
  3.    negligible stretch
  4.    variable stretch
 Discuss Question
Answer: Option B. -> high stretch
Answer: (b).high stretch
Question 18. Number of types polymers have is
  1.    4
  2.    5
  3.    6
  4.    7
 Discuss Question
Answer: Option C. -> 6
Answer: (c).6
Question 19. Weak forces between each molecule of material is called as
  1.    valency bonds
  2.    van der Waals forces
  3.    bonding
  4.    binding
 Discuss Question
Answer: Option B. -> van der Waals forces
Answer: (b).van der Waals forces
Question 20. Materials that meet extensibility criteria are
  1.    linear polymers
  2.    partially crystalline
  3.    partially oriented
  4.    all of above
 Discuss Question
Answer: Option D. -> all of above
Answer: (d).all of above

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