Environmental Engineering in CE Maximum allowable noise exposure limits for a man working for 8 hours a day in a noisy chemical plant is about __________ decibels. 120 20 90 60 120 20 90 60 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The maximum CO₂ is emitted into the atmosphere by Trees Combustion Biomass burning Urea Trees Combustion Biomass burning Urea ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE High concentration of carcinogenic hydrocarbon pollutants in atmospheric air causes Respiratory disease (e.g., asthma) Silicosis Reduced crop yield Cancer Respiratory disease (e.g., asthma) Silicosis Reduced crop yield Cancer ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Sulphur dioxide present in the industrial chimney exhaust gases causes Corrosion of building materials All of these Reduction in plant's productivity owing to acid rain Respiratory & lung disease Corrosion of building materials All of these Reduction in plant's productivity owing to acid rain Respiratory & lung disease ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Iron & manganese present in the polluted water is removed by Oxidation followed by settling & filtration Chlorination only Simple filtration Chemical coagulation Oxidation followed by settling & filtration Chlorination only Simple filtration Chemical coagulation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum permissible turbidity in potable water is __________ ppm. 250 1000 1 10 250 1000 1 10 ANSWER DOWNLOAD EXAMIANS APP
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