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MCQs

Total Questions : 55 | Page 4 of 6 pages
Question 31. By using polarized infrared, orientation can be determined in
  1.    one region
  2.    two regions
  3.    three regions
  4.    four regions
 Discuss Question
Answer: Option B. -> two regions
Answer: (b).two regions
Question 32. Larger scale molecular information can be obtained from
  1.    elastic scattering
  2.    scattering
  3.    moderate scattering
  4.    light scattering
 Discuss Question
Answer: Option D. -> light scattering
Answer: (d).light scattering
Question 33. Presence of liquid and solid state is evidence of
  1.    non polarized material
  2.    polarized material
  3.    non crystalline material
  4.    crystalline material
 Discuss Question
Answer: Option D. -> crystalline material
Answer: (d).crystalline material
Question 34. When electromagnetic waves interact with matter, they are
  1.    scattered
  2.    scattered and absorbed
  3.    reflected and absorbed
  4.    reflected
 Discuss Question
Answer: Option B. -> scattered and absorbed
Answer: (b).scattered and absorbed
Question 35. One technique that is useful determining crystalline and non crystalline regions of material is
  1.    exposing material to the vapor of heavy water
  2.    exposing material to the vapor of light water
  3.    vaporization
  4.    crystallization
 Discuss Question
Answer: Option A. -> exposing material to the vapor of heavy water
Answer: (a).exposing material to the vapor of heavy water
Question 36. Essential requirement in fibre structure is
  1.    ensuring continuity
  2.    strength
  3.    bonding
  4.    all of above
 Discuss Question
Answer: Option D. -> all of above
Answer: (d).all of above
Question 37. Oriented arrangement of molecules is achieved with help of
  1.    lateral forces
  2.    lateral compression
  3.    movement
  4.    friction
 Discuss Question
Answer: Option A. -> lateral forces
Answer: (a).lateral forces
Question 38. Transverse strength is much less important because of
  1.    fineness of fibers
  2.    rigidity
  3.    hardness
  4.    bonding
 Discuss Question
Answer: Option A. -> fineness of fibers
Answer: (a).fineness of fibers
Question 39. In case of short fibers, there's a loss of
  1.    strength
  2.    twists
  3.    friction
  4.    hold
 Discuss Question
Answer: Option A. -> strength
Answer: (a).strength
Question 40. It should be taken care of that twists must not bind fibers in a solid rod because it will destroy the
  1.    flexibility
  2.    porosity and flexibility
  3.    rigidity and flexibility
  4.    rigidity
 Discuss Question
Answer: Option B. -> porosity and flexibility
Answer: (b).porosity and flexibility

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