Environmental Engineering in CE Noise level inside a jet air liner in normal flight is about __________ decibels. 80 125 145 100 80 125 145 100 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum allowable concentration of CO₂ in air for safe working is __________ ppm (parts per million). 2000 1000 50 5000 2000 1000 50 5000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following pollutants is not emitted during volcanic eruptions? SO₂ H₂S CO Hydrocarbons SO₂ H₂S CO Hydrocarbons ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Suspended solid present in the waste water generated in blast furnace gas cooling and cleaning plant is removed by Biological oxygen pond Lagoons Filtration Radial settling tank (thickener) using coagulant (lime & ferrous sulphate) Biological oxygen pond Lagoons Filtration Radial settling tank (thickener) using coagulant (lime & ferrous sulphate) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Most of the bacteria in sewage are Parasitic Saprophytic None of these Anerobic Parasitic Saprophytic None of these Anerobic ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Industrial workers working in leather tanning & manufacturing units are prone to suffer from Skin diseases (e.g. dermatities) Blurred vision Silicosis Respirtory ailments (e.g. bronchitis) Skin diseases (e.g. dermatities) Blurred vision Silicosis Respirtory ailments (e.g. bronchitis) ANSWER DOWNLOAD EXAMIANS APP
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