Environmental Engineering in CE From pollution control point of view, the maximum permissible concentration of sulphur dioxide in atmospheric air is about __________ ppm. 5 1 500 50 5 1 500 50 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Removal of __________ is accomplished by aeration of water. None of these Dissolved gases Suspended solids Dissolved solids None of these Dissolved gases Suspended solids Dissolved solids ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum permissible concentration (i.e. TLV) of DDT in public water supply system is __________ micro gram (μ g)/litre. 1050 2 42 332 1050 2 42 332 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE High noise levels produced during operation of fans and compressors can be reduced by using Mufflers (silencers) Accoustical absorbent None of these Lagging of noisy duct Mufflers (silencers) Accoustical absorbent None of these Lagging of noisy duct ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Sulphur dioxide present in the industrial chimney exhaust gases causes 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 Respiratory & lung disease ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following causes death by asphyxiation, if its presence in atmospheric air exceeds maximum allowable concentration (i.e. > 50 ppm)? Sulphur dioxide Peroxyacyl nitrate Benzopyrene Carbon monoxide Sulphur dioxide Peroxyacyl nitrate Benzopyrene Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
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