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MCQs

Total Questions : 66 | Page 4 of 7 pages
Question 31. At end of scouring vat there is squeezing press whose lower cylinder is made up of
  1.    chromium plating
  2.    rubber
  3.    nylon
  4.    rubber and nylon
 Discuss Question
Answer: Option A. -> chromium plating
Answer: (a).chromium plating
Question 32. In upper section of each scouring unit there is a mobile apron, with teeth and blades having a
  1.    circular motion
  2.    oscillating motion
  3.    reciprocating motion
  4.    random motion
 Discuss Question
Answer: Option C. -> reciprocating motion
Answer: (c).reciprocating motion
Question 33. In scouring stage, stirring is important for efficient removal of
  1.    dust
  2.    moisture
  3.    water
  4.    particles
 Discuss Question
Answer: Option A. -> dust
Answer: (a).dust
Question 34. Squeezing press exerts pressure on wool equal to
  1.    10,000 daN
  2.    12,000 daN
  3.    15,000 daN
  4.    20,000 daN
 Discuss Question
Answer: Option C. -> 15,000 daN
Answer: (c).15,000 daN
Question 35. Shape of bottom of first two vats in scouring is
  1.    pyramid
  2.    truncated pyramid
  3.    round
  4.    vessel like
 Discuss Question
Answer: Option B. -> truncated pyramid
Answer: (b).truncated pyramid
Question 36. Stirring in scouring stage may lead to
  1.    felting
  2.    entanglements
  3.    twisting
  4.    felting and entanglements
 Discuss Question
Answer: Option D. -> felting and entanglements
Answer: (d).felting and entanglements
Question 37. In short fiber drafting, rovings are
  1.    weak
  2.    strong
  3.    cohesive
  4.    elastic
 Discuss Question
Answer: Option A. -> weak
Answer: (a).weak
Question 38. In short fiber drafting, drafting rate is between
  1.    10 to 20 %
  2.    20 to 50 %
  3.    50 to 70 %
  4.    75 to 90 %
 Discuss Question
Answer: Option B. -> 20 to 50 %
Answer: (b).20 to 50 %
Question 39. Shorter fibers are generally not nipped by feeder cylinders resulting in
  1.    fiber opening
  2.    fiber waste
  3.    free fibers
  4.    floating fibers
 Discuss Question
Answer: Option D. -> floating fibers
Answer: (d).floating fibers
Question 40. In short fiber drafting, drafting is controlled by
  1.    control panel
  2.    drafting control devices
  3.    fiber control devices
  4.    short fiber control devices
 Discuss Question
Answer: Option C. -> fiber control devices
Answer: (c).fiber control devices

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