Environmental Engineering in CE Presence of __________ hardness is responsible for the temporary hardness in water. Sulphate Choride Calcium Carbonate Sulphate Choride Calcium Carbonate ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise emitted by a ventilation fan at a distance of 3 metres is about __________ decibels. 105 125 85 145 105 125 85 145 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The maximum permissible noise level to which a man working in a chemical plant can be exposed for eight hours per day is about __________ decibels. 90 105 120 60 90 105 120 60 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Tri-sodium phosphate is used in boiler water treatment to reduce Caustic embrittlement Turbidity Dissolved oxygen Suspended silica Caustic embrittlement Turbidity Dissolved oxygen Suspended silica ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of bacteria in potable (drinking) water causes Disease Turbidity Bad odour Bad taste & colour Disease Turbidity Bad odour Bad taste & colour 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 Chlorides Sulphides Carbonates Bi-carbonates Chlorides Sulphides ANSWER DOWNLOAD EXAMIANS APP
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