1. As per IS: 1172-1963, water required per head per day for average domestic purposes, is?

2. Turbidity of raw water is a measure of

3. Which among the following quantity is considered while estimating the sewage quantity?

4. The future period for which the provision is made in designing the capacities of the various components of the sewerage scheme is known as the

5. A city has a projected population of 60,000 spread over area of 50 hectare. Find the design discharge for the separate sewer line by assuming rate of water supply of 250 LPCD and out of this total supply only 75 % reaches in sewer as wastewater. Make necessary assumption whenever necessary.

6. Pick up the correct statement in case of water supply.

7. Cost of fittings and their fixing is specified for the following sanitary fittings.

8. What is the detention period in a septic tank?

9. What is the diameter of a domestic sewer pipe laid at gradient 1 in 100?

10. Disinfection of drinking water is done to remove odour.

11. Fluctuation in flow occurs from hour to hour and from season to season.