Environmental Engineering in CE A gas is termed as non-toxic, if its maximum permissible concentration (TLV) ranges from __________ ppm. 3000 to 6000 6000 to 9000 10000 to 100000 1000 to 2000 3000 to 6000 6000 to 9000 10000 to 100000 1000 to 2000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which is the most practical and economical method for removal of suspended solid matter from polluted water? Skimming off Biological oxidation Sedimentation Chlorination Skimming off Biological oxidation Sedimentation Chlorination ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE From pollution control point of view, the maximum permissible concentration of sulphur dioxide in atmospheric air is about __________ ppm. 500 5 50 1 500 5 50 1 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In a sedimentation tank, the detention period for water ranges from __________ hours. 24 to 32 16 to 20 2 to 4 8 to 12 24 to 32 16 to 20 2 to 4 8 to 12 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Hardy cross method of analysis of distribution system(i) Involves successive trials(ii) Takes economic aspects into account(iii) Is time consuming All are correct (i) and (ii) (i) and (iii) Only (i) All are correct (i) and (ii) (i) and (iii) Only (i) 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 Fluorine Calcium Phosphorous Sulphur Fluorine Calcium ANSWER DOWNLOAD EXAMIANS APP
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