Environmental Engineering The gas from sludge digestion tank is mainly composed of Carbon dioxide Hydrogen sulphide Methane Nitrogen Carbon dioxide Hydrogen sulphide Methane Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The percentage of filtered water, which is used for backwashing in rapid sand filters, is about 5 to 7 0.2 to 0.4 0.4 to 1.0 2 to 4 5 to 7 0.2 to 0.4 0.4 to 1.0 2 to 4 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The velocity of flow of water in a sedimentation tank is about 15 to 30 cm/minute 15 to 30 cm/sec 15 to 30 cm/hour 5 to 10 cm/sec 15 to 30 cm/minute 15 to 30 cm/sec 15 to 30 cm/hour 5 to 10 cm/sec ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Which of the following methods of analysis of water distribution system is most suitable for long and narrow pipe system? Circle method Equivalent pipe method Electrical analysis method Hardy cross method Circle method Equivalent pipe method Electrical analysis method Hardy cross method ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Which of the following chemical compounds can be used for de-chlorination of water? Chloramines Sulphur dioxide Bleaching powder Carbon dioxide Chloramines Sulphur dioxide Bleaching powder Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Alum as a coagulant is found to be most effective when pH range of water is 4 to 6 6 to 8 8 to 10 2 to 4 4 to 6 6 to 8 8 to 10 2 to 4 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS