Environmental Engineering in CE The permissible color for domestic water supply is __________ ppm. 1 20 100 1000 1 20 100 1000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Polluted water having low BOD are most economically treated in Sedimentation tanks Clarifier Sludge digester Oxidation ponds Sedimentation tanks Clarifier Sludge digester Oxidation ponds ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the most severe air pollutant? SO₂ NOx CO Hydrocarbons SO₂ NOx CO Hydrocarbons ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE CFC (chloro fluoro carbon) is very highly reactive in causing depletion of ozone layer in the atmosphere. Each atom of chlorine liberated from CFC is capable of decomposing __________ molecules of ozones. 10⁵ 10⁹ 10¹⁵ 10² 10⁵ 10⁹ 10¹⁵ 10² ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Dust collection efficiency of a cyclone separator depends upon its All of these Inlet gas velocity Diameter Overall height All of these Inlet gas velocity Diameter Overall height ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The length of rectangular sedimentation tank should not be more than(Where ‘B’ is the width of the tank) B 8B 4B 2B B 8B 4B 2B ANSWER DOWNLOAD EXAMIANS APP
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