The hourly variation factor is usually taken as______________?

Related Mcqs:

1. 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. 180000m3 D. 270000 m3...

2. The detention period for oxidation ponds is usually kept as______________?

   A. 4-8 hours B. 24 hours C. 10 to 15 days D. 3 months...

3. The design discharge for the separate sewer system shall be taken as_____________?

   A. equal to dry weather flow (DWF) B. 2xDWF C. 3 x DWF D. 6xDWF...

4. The design discharge for the combined sewer system shall be taken as________________?

   A. equal to rainfall B. rainfall + DWF C. rainfall + 2 DWF D. rainfall + 6 DWF...

5. Laying of sewers is usually done with the help of________________?

   A. a theodolite B. a compass C. sight rails and boning rods D. a plane table...

6. Sewerage system is usually designed for_________________?

   A. 10 years B. 25 years C. 50 years D. 75 years...

7. The detention period in coagulation tanks is usually kept as_______________?

   A. 1 to 2 minutes B. 30 to 45 minutes C. 2 to 6 hours D. 2 to 6 days...

8. Ground water is usually free from________________?

   A. suspended impurities B. dissolved impurities C. both suspended and dissolved impuri¬ties D. none of the above...

9. When there is no recirculation of sewage, then recirculation factor is_______________?

   A. 0 B. 1 C. infinity D. none of the above...

10. The dissolved oxygen level in natural unpolluted waters at normal temperature is found to be of the order of________________?

    A. 1 mg/litre B. 10 mg/litre C. 100 mg/litre D. 1000 mg/litre...