Environmental Engineering For a given discharge, the efficiency of sedimentation tank can be increased by Increasing the depth of tank Increasing the surface area of tank Decreasing the depth of tank Decreasing the surface area of tank Increasing the depth of tank Increasing the surface area of tank Decreasing the depth of tank Decreasing the surface area of tank ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The minimum and maximum diameters of sewers shall preferably be 15 cm and 100 cm 15 cm and 300 cm 30 cm and 450 cm 60 cm and 300 cm 15 cm and 100 cm 15 cm and 300 cm 30 cm and 450 cm 60 cm and 300 cm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The type of valve, which is provided on the suction pipe in a tube-well, is Air relief valve Reflux valve Pressure relief valve Sluice valve Air relief valve Reflux valve Pressure relief valve Sluice valve ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The polluted water is one which Is contaminated Contains pathogenic bacteria Is safe and suitable for drinking and domestic use Consists of undesirable substances rendering it unfit for drinking and domestic use Is contaminated Contains pathogenic bacteria Is safe and suitable for drinking and domestic use Consists of undesirable substances rendering it unfit for drinking and domestic use ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The gas from sludge digestion tank is mainly composed of Carbon dioxide Hydrogen sulphide Nitrogen Methane Carbon dioxide Hydrogen sulphide Nitrogen Methane 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 10 ppm 4 ppm 1 ppm 40 ppm 10 ppm 4 ppm 1 ppm 40 ppm ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS