Environmental Engineering

If the average daily consumption of a city is 100,000 m3, the maximum daily con¬sumption on peak hourly demand will be_______________? A. 100000m3 B. 150000m3 C. 180000m3D. 270000 m3

As compared to geometrical increase method of forecasting population, arithmetical increase method gives________________? A. lesser value B. higher value C. same value D. accurate value

The suitable method of forecasting popu¬lation for a young and rapidly increasing city is_________________? A. arithmetical increase methodB. geometrical increase method C. incremental increase method D. graphical method…

Select the correct relationship between porosity (N), specific yield (y) and specific retention (R)________________? A. N = y + R(Correct) B. y = N + R C. R = N + y D. R > (N + y)

Which of the following is not a water borne disease ? A. dysentery B. cholera C. typhoidD. maleria

The phenolic compounds in public water supply should not be more than_______________? A. 0.1 ppm B. 0.01 ppmC. 0.001 ppm D. 0.0001 ppm

The maximum discharge of a tube-well is about_________________? A. 5 litres/sec B. 50 litres/sec(Correct) C. 500 litres/sec D. 1000 litres/see

Ground water is usually free from________________? A. suspended impurities B. dissolved impurities C. both suspended and dissolved impuri¬ties D. none of the above

Standard EDTA (ethylene diamine tetra acetic aciD. solution is used to determine the_______________?A. hardness in water(Correct) B. turbidity in water C. dissolved oxygen in water D. residual chlorine in water…

Which of the following values of pH represents a stronger acid? A. 2 B. 5 C. 7 D. 10