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. 10-100 100-1000 100-200 10-100 100-1000 100-200 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is a green house gas other than CO₂ ? Nitrous oxide Methane All of these Chlorofluro carbons (CFC) Nitrous oxide Methane All of these Chlorofluro carbons (CFC) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE What is the major constituents of waste/polluted water discharged from textile, pulp & paper, tanning, distillary, dairy and meat packing industries? Natural organic products Inorganic pollutants None of these Radioactive substances Natural organic products Inorganic pollutants None of these Radioactive substances ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Acute danger to human life (i.e. death) exists, if the concentration of CO₂ in atmospheric air exceeds __________ percent (by volume). 20 1 3 7 20 1 3 7 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE TLV of ammonia, nitrogen dioxide and phenol vapor in air is __________ ppm. 5 100 2000 1000 5 100 2000 1000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Out of the following, TLV of __________ is the minimum (about 0.02 ppm). Ozone Phosgene MIC (methyl iso-cynate) Bromine Ozone Phosgene MIC (methyl iso-cynate) Bromine ANSWER DOWNLOAD EXAMIANS APP
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