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MCQs

Total Questions : 66 | Page 6 of 7 pages
Question 51. Which of the following is an intensive method of land treatment?
  1.    Rapid infiltration
  2.    Infiltration
  3.    Slow rate
  4.    Over flow
 Discuss Question
Answer: Option A. -> Rapid infiltration
Answer: (a).Rapid infiltration
Question 52. What is stoichiometry?
  1.    A quantitative relationship between reactants and products
  2.    Defines a qualitative value of the reactants and products
  3.    Defines the quantity of reactants and products upon reaching equilibrium
  4.    It defines quantity of only reactants
 Discuss Question
Answer: Option A. -> A quantitative relationship between reactants and products
Answer: (a).A quantitative relationship between reactants and products
Question 53. How is iconic strength related to total dissolved solids?
  1.    I= (2.5 x 10⁻⁵)TDS
  2.    I = (2.5 × 10⁵) TDS
  3.    I= 2.5 TDS
  4.    I = 2.5 x10 TDS
 Discuss Question
Answer: Option A. -> I= (2.5 x 10⁻⁵)TDS
Answer: (a).I= (2.5 x 10⁻⁵)TDS
Question 54. In dilute solutions which are normally encountered in water treatment what is the value of the activity of coefficient assumed?
  1.    0.5
  2.    0.75
  3.    1.0
  4.    >1
 Discuss Question
Answer: Option C. -> 1.0
Answer: (c).1.0
Question 55. What is the rate of a chemical reaction not dependent on?
  1.    Stoichiometry
  2.    Surface area of reactants
  3.    Temperature
  4.    Pressure
 Discuss Question
Answer: Option D. -> Pressure
Answer: (d).Pressure
Question 56. In solutions as ionic concentration increases a non-ideal condition arises. To account for this non-ideal condition due to the ion-ion interaction what is the effective concentration term called as?
  1.    Activity
  2.    Dielectric constant
  3.    Ionic coefficient
  4.    Ionic strength
 Discuss Question
Answer: Option A. -> Activity
Answer: (a).Activity
Question 57. Which among the following reactors has important advantages?
  1.    Bubble column bioreactors
  2.    Fluidized bed bioreactors
  3.    Cylindrical orbitally shaken bioreactors
  4.    Continuous stirred tank bioreactors
 Discuss Question
Answer: Option C. -> Cylindrical orbitally shaken bioreactors
Answer: (c).Cylindrical orbitally shaken bioreactors
Question 58. __________ is the net movement of mass from one location or component to another.
  1.    Osmosis
  2.    Mass transfer
  3.    Dilution
  4.    Reverse osmosis
 Discuss Question
Answer: Option B. -> Mass transfer
Answer: (b).Mass transfer
Question 59. In which of the following cases the flux is considered as volumetric flux?
  1.    Desalination/Reverse Osmosis
  2.    Ion exchange
  3.    Adsorption
  4.    Aeration
 Discuss Question
Answer: Option A. -> Desalination/Reverse Osmosis
Answer: (a).Desalination/Reverse Osmosis
Question 60. Which of the following do not involve mass transfer in terms of water treatment?
  1.    Clarification
  2.    Aeration
  3.    Air Stripping
  4.    Adsorption
 Discuss Question
Answer: Option A. -> Clarification
Answer: (a).Clarification

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