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MCQs

Total Questions : 3103 | Page 309 of 311 pages
Question 3081. Paper grade bamboo contains about _______________ percent cellulose ?
  1.    5
  2.    20
  3.    40
  4.    60
 Discuss Question
Answer: Option A. -> 5
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3082. Most widely and commonly used coagulant for the removal of suspended impurities in water is __________________?
  1.    Bleaching powder
  2.    Slaked lime
  3.    Alum
  4.    Copper sulphate
 Discuss Question
Answer: Option C. -> Alum
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3083. Flash point of most vegetable oils is about _______________ °C ?
  1.    50
  2.    100
  3.    200
  4.    300
 Discuss Question
Answer: Option C. -> 200
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3084. The major constituent of black liquor generated during paper manufacture is sodium___________________?
  1.    Sulphate
  2.    Carbonate
  3.    Hydroxide
  4.    Bi-carbonate
 Discuss Question
Answer: Option B. -> Carbonate
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3085. Use of water having dissolved oxygen in boilers promotes___________________?
  1.    Corrosion
  2.    Sequestration
  3.    Scale formation
  4.    None of these
 Discuss Question
Answer: Option A. -> Corrosion
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3086. Common salt is generally not produced commonly by ________________ method from brine ?
  1.    Freeze drying
  2.    Electrolytic
  3.    Solar evaporation
  4.    Vacuum evaporation
 Discuss Question
Answer: Option A. -> Freeze drying
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3087. Dacron (or Terylene) fibres as compared to nylon fibres have__________________?
  1.    Better heat & acid resistant properties
  2.    Poorer resistance to alkalis
  3.    Poorer dyeability
  4.    All A , B. and C.
 Discuss Question
Answer: Option D. -> All A , B. and C.
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3088. Reaction of ethylene glycol and dimethyl terephthalate (DMT) produces ________________?
  1.    Nylon-6
  2.    Dacron
  3.    Polyester
  4.    PVC
 Discuss Question
Answer: Option B. -> Dacron
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3089. Sudden temperature fluctuation does not affect pyrex glass, because of its __________________?
  1.    Low co-efficient of expansion
  2.    High co-efficient of expansion
  3.    High melting point
  4.    Both B. and (C)
 Discuss Question
Answer: Option A. -> Low co-efficient of expansion
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3090. Which of the following is a constituent of coffee ?
  1.    Caffeine
  2.    Nicotine
  3.    Calgon
  4.    Lignin
 Discuss Question
Answer: Option A. -> Caffeine
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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