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MCQs

Total Questions : 476 | Page 47 of 48 pages
Question 461. In which year was the structure of ozone determined?
  1.    1865
  2.    1875
  3.    1885
  4.    1895
 Discuss Question
Answer: Option A. -> 1865
Answer: (a).1865
Question 462. What is the drum speed considered while designing a disc filter at 150 mm head loss?
  1.    30-40 m/min
  2.    26 m/min
  3.    20-25 m/min
  4.    28 m/min
 Discuss Question
Answer: Option A. -> 30-40 m/min
Answer: (a).30-40 m/min
Question 463. What is the hydraulic loading rate in m²/m³/h of a cloth disc filter assumed while designing it?
  1.    0.1-0.27
  2.    10-20
  3.    2-4
  4.    1-2
 Discuss Question
Answer: Option A. -> 0.1-0.27
Answer: (a).0.1-0.27
Question 464. What is the head loss considered for the cloth disc filter while designing it?
  1.    50-300 mm
  2.    400-500 mm
  3.    500 -600 mm
  4.    600-700 mm
 Discuss Question
Answer: Option A. -> 50-300 mm
Answer: (a).50-300 mm
Question 465. What is the drum diameter considered while designing the cloth disc filter?
  1.    0.9-1.8 m
  2.    2 m
  3.    3-4 m
  4.    5 m
 Discuss Question
Answer: Option A. -> 0.9-1.8 m
Answer: (a).0.9-1.8 m
Question 466. What is the maximum NTU a disc filter can handle?
  1.    25 NTU
  2.    10 NTU
  3.    50 NTU
  4.    100 NTU
 Discuss Question
Answer: Option A. -> 25 NTU
Answer: (a).25 NTU
Question 467. What is the EE/O for benzene in kWh/1000 US gal/order?
  1.    2-5
  2.    5-7
  3.    7-9
  4.    9-11
 Discuss Question
Answer: Option A. -> 2-5
Answer: (a).2-5
Question 468. What is the EE/O for DCA in kWh/1000 US gal/order?
  1.    5
  2.    15
  3.    20
  4.    25
 Discuss Question
Answer: Option B. -> 15
Answer: (b).15
Question 469. What is the EE/O for chloroform in kWh/1000 US gal/order?
  1.    5-10
  2.    15
  3.    20-25
  4.    25-30
 Discuss Question
Answer: Option B. -> 15
Answer: (b).15
Question 470. How is UV dosage expressed mathematically?
  1.    UV dosage = EE/O log(Ci)/(Cf)
  2.    UV dosage = EE/O /log(Ci)/(Cf)
  3.    UV dosage = log(Ci)/(Cf)
  4.    UV dosage = EE/O (Ci)/(Cf)
 Discuss Question
Answer: Option A. -> UV dosage = EE/O log(Ci)/(Cf)
Answer: (a).UV dosage = EE/O log(Ci)/(Cf)

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