try to keep short and i prefer type answers if possible 10 W

try to keep short and i prefer type answers, if possible.

10. What is the range of values representing low-intensity and high-intensity rainfall in the United States?

17. Coagulation in which there is a defined removal of organic carbon, measured as total organic carbon (TOC), is defined by the E.P.A. as

22. Name the four functional components of an ozone disinfection system:

27. The kinematic viscosity of water at 32oF, in ft2 /sec, is most nearly:

(A) 0.00001921 (B) 0.00001929 (C) 0.00001931 (D) 0.00001944

28. To convert cubic feet to gallons, multiply by

(A) 5.1990 (B) 7.4805 (C) 9.8100 (D) 10.000

29. Normal Depth may be defined as:

(A) The depth upstream of a hydraulic jump (B) The depth of uniform flow (C) The depth that minimizes the specific energy flow (D) The height of the channel side above the water level

30. Which statement about the Froude number is true?

(A) Fr < 1: flow is super critical (B) Fr < 1: flow is sub critical

31. Manning’s n, for a natural channel with stones and weed would be most nearly:

(A) 0.008 (B) 0.013 (C) 0.035 (D) 0.150

32. To convert gallons per minute to ft3/day, multiply by:

(A) 9.81 (B) 25.4 (C) 192.5 (D) 106

Solution

17. measure of particulates and dissolved organics impacting coagulation.

22. 1. Feed Gas system, 2. Ozone Generator, 3. Ozone Contractor, 4. Ozone Vent gas treatment and residual removal.

27. Kinematic viscoisty of water at 32oF is 1.9287X10^-5 = 0.000019287 which is close to 0.00001929.

Ans: (B).

28.1 ft³ = 7.4805 gallons.

Ans: (B).

29. Normal depth is defined as the depth of flow for being uniform and steady. Therefore,

Ans: (B).

30. For flow through channels, Fr<1 is sub critical flow, Fr>1 is supercritical flow and Fr=1 is critical flow.Therefore,

Ans: (B)

31. Manning\'s n from standard tables is: 0.035. Therefore,

Ans: (C).

32. 1 gallon = 0.133681 ft³

Therefore,

1 gallon/min = 24x60 gallon/day = 1440 gallon/day = 0.133681 x 1440 ft³/day

= 192.5 ft³/day

Ans: (C).

For question #10, rainfall intensity map will be required.