Environmental Engineering As compared to cast iron pipes, steel pipes are Heavier Stronger Less susceptible to corrosion Costlier Heavier Stronger Less susceptible to corrosion Costlier ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The detention period in coagulation tanks is usually kept as 2 to 6 hours 30 to 45 minutes 2 to 6 days 1 to 2 minutes 2 to 6 hours 30 to 45 minutes 2 to 6 days 1 to 2 minutes ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The amount of residual chlorine left in public water supply for safety against pathogenic bacteria is about 0.5 to 1.0 ppm 0.01 to 0.05 ppm 1.0 to 5.0 ppm 0.05 to 0.5 ppm 0.5 to 1.0 ppm 0.01 to 0.05 ppm 1.0 to 5.0 ppm 0.05 to 0.5 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering On standard silica scale, the turbidity in drinking water should be limited to 30 ppm 50 ppm 20 ppm 10 ppm 30 ppm 50 ppm 20 ppm 10 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering As compared to higher pH values, the contact period required for efficient chlorination at lower pH values is None of these Larger Smaller Same None of these Larger Smaller Same ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Which of the following unit works in anaerobic conditions? Sedimentation tank Sludge digestion tank Trickling filters Activated sludge treatment Sedimentation tank Sludge digestion tank Trickling filters Activated sludge treatment ANSWER DOWNLOAD EXAMIANS APP
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