Environmental Engineering The amount of residual chlorine left in public water supply for safety against pathogenic bacteria is about 0.01 to 0.05 ppm 0.05 to 0.5 ppm 1.0 to 5.0 ppm 0.5 to 1.0 ppm 0.01 to 0.05 ppm 0.05 to 0.5 ppm 1.0 to 5.0 ppm 0.5 to 1.0 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Select the correct relationship between porosity (N), specific yield (y) and specific retention (R) y = N + R R = N + y R > (N + y) N = y + R y = N + R R = N + y R > (N + y) N = y + R ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The most common cause of acidity in water is Nitrogen Carbon dioxide Oxygen Hydrogen Nitrogen Carbon dioxide Oxygen Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The rate of filtration in slow sand filters in million litres per day per hectare is about 50 to 60 1400 to 1500 100 to 150 500 to 600 50 to 60 1400 to 1500 100 to 150 500 to 600 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The suitable system of sanitation for area of distributed rainfall throughout the year with less intensity is Combined system Partially separate system Partially combined system Separate system Combined system Partially separate system Partially combined system Separate system ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The type of valve which allows water to flow in one direction but prevents its flow in the reverse direction is Reflux valve Air relief valve Pressure relief valve Sluice valve Reflux valve Air relief valve Pressure relief valve Sluice valve ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS