Environmental Engineering in CE TLV of ozone (O₃) and phosgene (COCl₂) in air is __________ ppm. 25 100 1000 0.1 25 100 1000 0.1 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The pH value of potable water should be between 1 to 1.5 6.5 to 8 4 to 5 13 to 14 1 to 1.5 6.5 to 8 4 to 5 13 to 14 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The Killer gas which caused Bhopal gas tragedy in 1984 was Phosgene Carbon monoxide Sulphur dioxide Methyl iso-cynate (MIC) Phosgene Carbon monoxide Sulphur dioxide Methyl iso-cynate (MIC) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Foaming and priming in boiler operation can be reduced by reduction in __________ in feed water. Turbidity Color (Hazen) All of these Total solids Turbidity Color (Hazen) All of these Total 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. 42 332 1050 2 42 332 1050 2 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Oilish impurities present the effluent discharged from the electroplating industry is normally not removed by Ultrafiltration Chemical coagulation Floatation & skimming Centrifugation Ultrafiltration Chemical coagulation Floatation & skimming Centrifugation ANSWER DOWNLOAD EXAMIANS APP
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