Environmental Engineering in CE Ethanolamine is an absorbant used for the removal of __________ from air/gas. HF H₂S Both B & C SO₂ HF H₂S Both B & C SO₂ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE TLV of ammonia, nitrogen dioxide and phenol vapor in air is __________ ppm. 2000 100 5 1000 2000 100 5 1000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The amount of chemical coagulant added for treatment of polluted water __________ with increase in temperature of the polluted water to be treated. Remains constant Increases Decreases May increase or decrease ; depends on the chemical characteristics of polluted water Remains constant Increases Decreases May increase or decrease ; depends on the chemical characteristics of polluted water ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Threshold limit value (TLV) i.e., the maximum permissible safe limit of phosgene gas which Hitler used to use to kill his enemies in 'gas chamber' is about __________ ppm. 100-200 10-100 100-1000 100-200 10-100 100-1000 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. 10⁹ 10² 10⁵ 10¹⁵ 10⁹ 10² 10⁵ 10¹⁵ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Removal of __________ is accomplished by aeration of water. None of these Dissolved solids Suspended solids Dissolved gases None of these Dissolved solids Suspended solids Dissolved gases ANSWER DOWNLOAD EXAMIANS APP
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