Environmental Engineering in CE Noise level inside a jet air liner in normal flight is about __________ decibels. 145 80 100 125 145 80 100 125 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. 42 332 1050 2 42 332 1050 2 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE __________ content of the phosphate rock is the pollutant of primary interest in a phos-phatic fertiliser plant. Phosphorous Sulphur Calcium Fluorine Phosphorous Sulphur Calcium Fluorine 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 Carbon monoxide Benzopyrene Peroxyacyl nitrate Sulphur dioxide Carbon monoxide Benzopyrene Peroxyacyl nitrate ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum allowable concentration of CO₂ in air for safe working is __________ ppm (parts per million). 2000 50 1000 5000 2000 50 1000 5000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is not a secondary air pollutant? Photochemical smog Sulphur dioxide All of these Ozone Photochemical smog Sulphur dioxide All of these Ozone ANSWER DOWNLOAD EXAMIANS APP
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