Hamad Environmental Engineering 18/02/2021 A. 1/3 B. 2/3 C. 3/4 D. 1.0 Related Mcqs: The most common cause of acidity in water is_______________?A. carbon dioxide B. oxygen C. hydrogen D. nitrogen... The rate of Alteration of pressure filters is_________________?A. less than that of slow sand filters B. in between the filtration rate of slow sand filters and rapid sand filters C. greater than that of rapid sand filters D. equal to that of slow sand filters... Which of the following unit works in anaerobic conditions ?A. sludge digestion tank B. sedimentation tank C. activated sludge treatment D. trickling filters... The detention period for oxidation ponds is usually kept as______________?A. 4-8 hours B. 24 hours C. 10 to 15 days D. 3 months... The process in which the chlorination is done beyond the break point is known as_________________?A. prechlorination B. post chlorination C. super chlorination D. break point chlorination...
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