Environmental Engineering in CE The upper layer of atmosphere is called the Ionosphere Stratosphere None of these Troposphere Ionosphere Stratosphere None of these Troposphere ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The ratio of oxygen available to the oxygen required for stabilisation of sewage is called the Biological oxygen demand (BOD) Oxygen ion concentration Relative stability Bacterial stability factor Biological oxygen demand (BOD) Oxygen ion concentration Relative stability Bacterial stability factor ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Sulphur dioxide present in the industrial chimney exhaust gases causes Respiratory & lung disease All of these Corrosion of building materials Reduction in plant's productivity owing to acid rain Respiratory & lung disease All of these Corrosion of building materials Reduction in plant's productivity owing to acid rain ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In sewage treatment, the detention period allowed for oxidation ponds ranges from __________ weeks. 1 to 2 4 to 5 15 to 20 9 to 10 1 to 2 4 to 5 15 to 20 9 to 10 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The commonest form of iron & manganese found in ground water as pollutant is in the form of their Carbonates Bi-carbonates Sulphides Chlorides Carbonates Bi-carbonates Sulphides Chlorides ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise pollution level in a chemical plant is expressed in Roentgen None of these Decibel Hertz Roentgen None of these Decibel Hertz ANSWER DOWNLOAD EXAMIANS APP
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