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MCQs

Total Questions : 476 | Page 42 of 48 pages
Question 411. What is the osmotic pressure for sea water?
  1.    1.5 Mpa
  2.    1.8 Mpa
  3.    2.3 Mpa
  4.    2.45 Mpa
 Discuss Question
Answer: Option D. -> 2.45 Mpa
Answer: (d).2.45 Mpa
Question 412. What is the thumb rule to consider for osmotic pressure?
  1.    1 psi for every 86 ppm of Na
  2.    2 psi for every 86ppm of Na
  3.    1 psi for every 43 ppm of Na
  4.    2 psi for every 43 ppm of Na
 Discuss Question
Answer: Option A. -> 1 psi for every 86 ppm of Na
Answer: (a).1 psi for every 86 ppm of Na
Question 413. What is the flux considered while designing a reverse osmosis system for treating RO permeate?
  1.    30-40 LMH
  2.    12-18 LMH
  3.    20-25 LMH
  4.    25-30 LMH
 Discuss Question
Answer: Option A. -> 30-40 LMH
Answer: (a).30-40 LMH
Question 414. What is the flux considered while designing a reverse osmosis system for treating surface water with UF system?
  1.    15-20 LMH
  2.    20-30 LMH
  3.    12-15 LMH
  4.    30-35 LMH
 Discuss Question
Answer: Option B. -> 20-30 LMH
Answer: (b).20-30 LMH
Question 415. What is the flux considered while designing a reverse osmosis system for treating surface water?
  1.    15-22 LMH
  2.    22-30 LMH
  3.    12-15 LMH
  4.    30-35 LMH
 Discuss Question
Answer: Option A. -> 15-22 LMH
Answer: (a).15-22 LMH
Question 416. What is the flux considered while designing a reverse osmosis system for treating bore well water?
  1.    30-40 LMH
  2.    40-50 LMH
  3.    20-30 LMH
  4.    12-18 LMH
 Discuss Question
Answer: Option C. -> 20-30 LMH
Answer: (c).20-30 LMH
Question 417. What is the percentage of earth’s salt water?
  1.    97%
  2.    97.1%
  3.    97.2%
  4.    97.3%
 Discuss Question
Answer: Option C. -> 97.2%
Answer: (c).97.2%
Question 418. ________ is a process whereby a solution or a particle is deposited on a membrane surface or in membrane pores.
  1.    Deposition
  2.    Absorption
  3.    Membrane fouling
  4.    Membrane accumulation
 Discuss Question
Answer: Option C. -> Membrane fouling
Answer: (c).Membrane fouling
Question 419. The formation of the alkaline scale is a function of the operational temperature.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 420. What is the average pore diameter of NF270?
  1.    0.52 nm
  2.    0.64 nm
  3.    0.76 nm
  4.    0.84 nm
 Discuss Question
Answer: Option D. -> 0.84 nm
Answer: (d).0.84 nm

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