Hamad Environmental Engineering 01/01/2024 A. 5 to 10 cm/sec. B. 15 to 30 cm/sec. C. 15 to 30 cm/minute D. 15 to 30 cm/hour Related Mcqs: The polluted water is one which_______________?A. contains pathogenic bacteria B. consists of undesirable substances rendering it unfit for drinking and domestic use C. is safe and suitable for drinking and domestic use D. is contaminated... The percentage of chlorine in fresh bleaching powder is about________________?A. 10 to 15 B. 20 to 25 C. 30 to 35 D. 40 to 50... If the sewage contains grease and fatty oils, these are removed in_________________?A. grit chambers B. detritus tanks C. skimming tanks D. sedimentation tanks... The hydraulic mean depth (HMD. for an egg-shaped sewer flowing two-third full is_______________?A. equal to HMD when flowing full B. less than HMD when flowing full C. greater than HMD when flowing full D. none of the above... The detention period in coagulation tanks is usually kept as_______________?A. 1 to 2 minutes B. 30 to 45 minutes C. 2 to 6 hours D. 2 to 6 days...
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