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MCQs

Total Questions : 55 | Page 1 of 6 pages
Question 1. Scattered photon has a
  1.    different energy
  2.    different frequency
  3.    both a and b
  4.    different wavenumber
 Discuss Question
Answer: Option C. -> both a and b
Answer: (c).both a and b
Question 2. If fibre is on extension stage in microscope, it is then possible to see shift in fibre extension
  1.    light spectrum
  2.    spectral lines
  3.    radius
  4.    diameter
 Discuss Question
Answer: Option B. -> spectral lines
Answer: (b).spectral lines
Question 3. Infrared absorption is influenced by all molecules in
  1.    crystalline region
  2.    non crystalline region
  3.    both a and b
  4.    solid region
 Discuss Question
Answer: Option C. -> both a and b
Answer: (c).both a and b
Question 4. In Raman spectroscopy, energy of change comes from
  1.    electron
  2.    photon
  3.    ion
  4.    molecule
 Discuss Question
Answer: Option B. -> photon
Answer: (b).photon
Question 5. With help of Raman microscope, spectra can be obtained from single fibers that is of
  1.    spot size less than a fibre diameter
  2.    spot size
  3.    fibre diameter size
  4.    fibre length
 Discuss Question
Answer: Option A. -> spot size less than a fibre diameter
Answer: (a).spot size less than a fibre diameter
Question 6. Freedom of molecular movement gives necessary
  1.    extensibility
  2.    openness
  3.    moisture and dye absorption
  4.    all of above
 Discuss Question
Answer: Option D. -> all of above
Answer: (d).all of above
Question 7. Lateral forces help in holding molecules together and give them
  1.    elasticity
  2.    cohesion
  3.    tightness
  4.    softness
 Discuss Question
Answer: Option B. -> cohesion
Answer: (b).cohesion
Question 8. When fibers are parallelized and lined up, twists are added which leads to
  1.    lateral compression
  2.    frictional force
  3.    strong hold
  4.    all of above
 Discuss Question
Answer: Option D. -> all of above
Answer: (d).all of above
Question 9. A mass of raw cotton consists of
  1.    long fibers
  2.    fine fibers
  3.    irregular and tangled up fibers
  4.    all of above
 Discuss Question
Answer: Option D. -> all of above
Answer: (d).all of above
Question 10. In linear polymer fibers, continuity is provided by
  1.    chained molecules
  2.    small chain molecules
  3.    long chain molecules
  4.    moderate molecules
 Discuss Question
Answer: Option C. -> long chain molecules
Answer: (c).long chain molecules

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