Environmental Engineering The settling velocity of a particle in a sedimentation tank increases if The depth of tank is decreased None of these Particle size is decreased The surface area of tank is increased The depth of tank is decreased None of these Particle size is decreased The surface area of tank is increased ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering In chlorination, with the rise in temperature of water, death rate of bacteria None of these Decreases Remains unaffected Increases None of these Decreases Remains unaffected Increases ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The rate of BOD exerted at any time is Inversely proportional to BOD satisfied Inversely proportional to BOD remaining Directly proportional to BOD satisfied Directly proportional to BOD remaining Inversely proportional to BOD satisfied Inversely proportional to BOD remaining Directly proportional to BOD satisfied Directly proportional to BOD remaining ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Alkalinity in water is expressed as milligrams per litre in terms of equivalent Magnesium carbonate Calcium hydroxide Calcium carbonate Sodium carbonate Magnesium carbonate Calcium hydroxide Calcium carbonate Sodium carbonate ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering If the time of concentration is 9 minutes, then the intensity of rainfall according to British Ministry of Health formula will be 20 mm/hr 4 mm/hr 40 mm/hr 10 mm/hr 20 mm/hr 4 mm/hr 40 mm/hr 10 mm/hr ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The design discharge for the separate sewer system shall be taken as 2 × DWF Equal to dry weather flow (DWF) 3 × DWF 6 × DWF 2 × DWF Equal to dry weather flow (DWF) 3 × DWF 6 × DWF ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS