Environmental Engineering The percentage of chlorine in fresh bleaching powder is about 20 to 25 10 to 15 30 to 35 40 to 50 20 to 25 10 to 15 30 to 35 40 to 50 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Generally the detention period for grit chambers is kept as 24 hours 12 hours 5 minutes 1 minute 24 hours 12 hours 5 minutes 1 minute ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The water carriage system of collection of waste product Is cheaper in initial cost than dry conservancy system Requires treatment before disposal Creates hygienic problem All of these Is cheaper in initial cost than dry conservancy system Requires treatment before disposal Creates hygienic problem All of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Which of the following retards the self purification of stream? Higher temperature Sunlight Satisfying oxygen demand None of these Higher temperature Sunlight Satisfying oxygen demand None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The length of rectangular sedimentation tank should not be more than (Where ‘B’ is the width of the tank) 2B 8B 4B B 2B 8B 4B B ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The maximum permissible limit for fluoride in drinking water is 1.5 mg/liter 10 mg/liter 5 mg/liter 0.1 mg/liter 1.5 mg/liter 10 mg/liter 5 mg/liter 0.1 mg/liter ANSWER DOWNLOAD EXAMIANS APP
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