Environmental Engineering Facultative bacteria are able to work in Presence as well as in absence of oxygen Absence of oxygen only Presence of water Presence of oxygen only Presence as well as in absence of oxygen Absence of oxygen only Presence of water Presence of oxygen only ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering For normal sludge, the value of sludge index for Indian conditions is 50 to 150 150 to 350 350 to 500 0 to 50 50 to 150 150 to 350 350 to 500 0 to 50 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The effective size of sand particles used in slow sand filters is 0.25 to 0.35 mm 0.35 to 0.60 mm 0.60 to 1.00 mm 1.00 to 1.80 mm 0.25 to 0.35 mm 0.35 to 0.60 mm 0.60 to 1.00 mm 1.00 to 1.80 mm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Percentage of bacterial load that can be removed from water by the process of plain sedimentation is about 75 100 59 50 75 100 59 50 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The polluted water is one which Is safe and suitable for drinking and domestic use Is contaminated Consists of undesirable substances rendering it unfit for drinking and domestic use Contains pathogenic bacteria Is safe and suitable for drinking and domestic use Is contaminated Consists of undesirable substances rendering it unfit for drinking and domestic use Contains pathogenic bacteria ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The velocity of flow of water in a sedimentation tank is about 15 to 30 cm/hour 15 to 30 cm/sec 15 to 30 cm/minute 5 to 10 cm/sec 15 to 30 cm/hour 15 to 30 cm/sec 15 to 30 cm/minute 5 to 10 cm/sec ANSWER DOWNLOAD EXAMIANS APP
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