Environmental Engineering The settling velocity of a particle in a sedimentation tank increases if Particle size is decreased The depth of tank is decreased The surface area of tank is increased None of these Particle size is decreased The depth of tank is decreased The surface area of tank is increased None of these 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/hour 5 to 10 cm/sec 15 to 30 cm/sec 15 to 30 cm/minute 15 to 30 cm/hour 5 to 10 cm/sec 15 to 30 cm/sec ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The effective size of sand particles used in slow sand filters is 0.25 to 0.35 mm 1.00 to 1.80 mm 0.35 to 0.60 mm 0.60 to 1.00 mm 0.25 to 0.35 mm 1.00 to 1.80 mm 0.35 to 0.60 mm 0.60 to 1.00 mm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The dissolved oxygen level in natural unpolluted waters at normal temperature is found to be of the order of 100 mg/liter 10 mg/liter 1 mg/liter 1000 mg/liter 100 mg/liter 10 mg/liter 1 mg/liter 1000 mg/liter ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering For normal sludge, the value of sludge index for Indian conditions is 350 to 500 50 to 150 150 to 350 0 to 50 350 to 500 50 to 150 150 to 350 0 to 50 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Which of the following is not a water borne disease? Cholera Dysentery Typhoid Malaria Cholera Dysentery Typhoid Malaria ANSWER DOWNLOAD EXAMIANS APP
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