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MCQs

Total Questions : 128 | Page 13 of 13 pages
Question 121. Which of the following, cannot be used as a dispersing agent?
  1.    Sodium oxalate
  2.    Sodium polyphosphate
  3.    Sodium silicate
  4.    Sodium oxide
 Discuss Question
Answer: Option D. -> Sodium oxide
Answer: (d).Sodium oxide
Question 122. The process of removal of organic matter and calcium compounds in the dispersion method is __________
  1.    Pretreatment
  2.    Sedimentation
  3.    Evaporation
  4.    None of the mentioned
 Discuss Question
Answer: Option A. -> Pretreatment
Answer: (a).Pretreatment
Question 123. Which of the following are used as a standard sedimentation method in a laboratory?
  1.    Sedimentation analysis method
  2.    Hydrometer method
  3.    Pipette method
  4.    Sand replacement method
 Discuss Question
Answer: Option C. -> Pipette method
Answer: (c).Pipette method
Question 124. The hydrometer method differs from pipette method on the basis of which of the following?
  1.    Principle of test
  2.    Taking the observation
  3.    Method of procedure
  4.    None of the mentioned
 Discuss Question
Answer: Option B. -> Taking the observation
Answer: (b).Taking the observation
Question 125. The dispersing agent correction in hydrometer reading is always__________
  1.    Positive
  2.    Both negative and positive
  3.    Negative
  4.    Equal
 Discuss Question
Answer: Option C. -> Negative
Answer: (c).Negative
Question 126. The meniscus correction in hydrometer reading is ___________
  1.    Always positive
  2.    Always negative
  3.    Negative sometime
  4.    Positive sometime
 Discuss Question
Answer: Option A. -> Always positive
Answer: (a).Always positive
Question 127. The corrections which are applied to the hydrometer reading, in hydrometer method is _______
  1.    Meniscus correctionc and Dispersing agent correction
  2.    Magnitude correction
  3.    All of the mentioned
  4.    None of the mentioned
 Discuss Question
Answer: Option A. -> Meniscus correctionc and Dispersing agent correction
Answer: (a).Meniscus correctionc and Dispersing agent correction
Question 128. Which of the following is the correct hydrometer reading equation?
  1.    R = Rh’ + Cm ± CL – Cd
  2.    R = Rh’ + cm + CL – Cd
  3.    R = Cm ± Rm – Cd + CL
  4.    R = Rh + Cm ± Cd + CL
 Discuss Question
Answer: Option A. -> R = Rh’ + Cm ± CL – Cd
Answer: (a).R = Rh’ + Cm ± CL – Cd

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