Environmental Engineering in CE 5-200 μm size particles are called Colloids or aerosols Powder Dust Smoke Colloids or aerosols Powder Dust Smoke ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Septic tanks are used for the __________ of the deposited solids. Separation Anaerobic decomposition Aerobic decomposition None of these Separation Anaerobic decomposition Aerobic decomposition None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Beyond what concentration of H₂S in air, acute danger to human life exists? 700 ppm 100 ppm 50 ppm 300 ppm 700 ppm 100 ppm 50 ppm 300 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In water chemical treatment plant, use of chloramines ensures Weed control in reservoirs Removal of permanent hardness Disinfection Taste & odour control Weed control in reservoirs Removal of permanent hardness Disinfection Taste & odour control ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Exposure to SO₂ containing chimney gases results in the Reduction in strength of leather & cloth Acceleration of corrosion rates of metals Increased drying & hardening time of paints All of these Reduction in strength of leather & cloth Acceleration of corrosion rates of metals Increased drying & hardening time of paints All of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Lead exhausted in the atmosphere by automobiles using leaded petrol (i.e. tetraethyl lead for improving octane number) is a lethal air pollutant which causes All of these Paralysis of muscles & loss of appetite Nervous depression Gastritis & diarrhea All of these Paralysis of muscles & loss of appetite Nervous depression Gastritis & diarrhea ANSWER DOWNLOAD EXAMIANS APP
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