Environmental Engineering If the total hardness of water is greater than its total alkalinity, the carbonate hardness will be equal to Total hardness Total alkalinity Non carbonate hardness Total hardness total alkalinity Total hardness Total alkalinity Non carbonate hardness Total hardness total alkalinity ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The minimum dissolved oxygen which should always be present in water in order to save the aquatic life is 1 ppm 4 ppm 10 ppm 40 ppm 1 ppm 4 ppm 10 ppm 40 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The velocity of flow of water in a sedimentation tank is about 15 to 30 cm/minute 15 to 30 cm/sec 5 to 10 cm/sec 15 to 30 cm/hour 15 to 30 cm/minute 15 to 30 cm/sec 5 to 10 cm/sec 15 to 30 cm/hour 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) B 8B 4B 2B B 8B 4B 2B ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering On standard silica scale, the turbidity in drinking water should be limited to 20 ppm 30 ppm 10 ppm 50 ppm 20 ppm 30 ppm 10 ppm 50 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The devices which are installed for drawing water from the sources are called Aquiclude Filters Aquifers Intakes Aquiclude Filters Aquifers Intakes ANSWER DOWNLOAD EXAMIANS APP
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