Environmental Engineering in CE The permissible color for domestic water supply is __________ ppm. 1000 100 1 20 1000 100 1 20 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Hazardous/polluting chemical industries should have an 'exclusion zone' with a green belt and general public access prohibited around it, covering a radius of ____ metres. 400 4000 1000 100 400 4000 1000 100 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In sewage treatment, the detention period allowed for oxidation ponds ranges from __________ weeks. 15 to 20 9 to 10 4 to 5 1 to 2 15 to 20 9 to 10 4 to 5 1 to 2 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The maximum permissible noise level to which a man working in a chemical plant can be exposed for eight hours per day is about __________ decibels. 60 120 90 105 60 120 90 105 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum permissible limit of mercury in human blood is __________ micrograms/100 c.c. 19 7 1 82 19 7 1 82 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE __________ substances present in sewage are removed in grit chamber during sewage treatment. Dissolved Organic Inorganic Fatty Dissolved Organic Inorganic Fatty ANSWER DOWNLOAD EXAMIANS APP
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