Environmental Engineering Which of the following chemical compounds can be used for de-chlorination of water? Chloramines Sulphur dioxide Carbon dioxide Bleaching powder Chloramines Sulphur dioxide Carbon dioxide Bleaching powder ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The slope of sewer shall be Given in the direction opposite to natural slope of ground Given in the direction of natural slope of ground Steeper than 1 in 20 Zero Given in the direction opposite to natural slope of ground Given in the direction of natural slope of ground Steeper than 1 in 20 Zero ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The suitable system of sanitation for area of distributed rainfall throughout the year with less intensity is Separate system Partially separate system Combined system Partially combined system Separate system Partially separate system Combined system Partially combined system ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering In a BOD test, 1.0 ml of raw sewage was diluted to 100 ml and the dissolved oxygen concentration of diluted sample at the beginning was 6 ppm and it was 4 ppm at the end of 5 day incubation at 20°C. The BOD of raw sewage will be 200 ppm 100 ppm 400 ppm 300 ppm 200 ppm 100 ppm 400 ppm 300 ppm 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? Electrical analysis method Hardy cross method Equivalent pipe method Circle method Electrical analysis method Hardy cross method Equivalent pipe method Circle method ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The length of rectangular sedimentation tank should not be more than (Where ‘B’ is the width of the tank) 4B B 8B 2B 4B B 8B 2B ANSWER DOWNLOAD EXAMIANS APP