Environmental Technology

Part 1: Match each with correct answers.

1. Pressure

2. Standard atmospheric pressure

3. What is the pressure at 15 ft under water?

4. 10 ft3/s

5. What is the flow rate of water in a pipe flowing full with an area of 0.3 m2 and velocity of 2.5 m/s?

6. What is a pipe’s inside cross-sectional area, if the inside diameter is 11.9 inches?

7. Referring to Figure 2-12 on page 31 in the textbook, if QA=3 ft3/s and QC=1.7 ft3/s, what is QB?

8. If a 400-mm diameter pipe with a pipe roughness coefficient of 100 flows full of pressurized water with a head loss of 0.4 ft per 1,000 ft of pipeline, what is the flow rate? Use the Hazen-Williams method.

9. If a 1-m diameter sewer pipe is flowing at a depth of 0.4 m and has a flow rate of 0.15 m3/s, what will be the flow rate when the pipe flows full?

10. What is the flow rate through a V-notch weir having a head of 0.42 ft?

A.
Force divided by area

B.
1.3 ft3/s

C.
4488 gal/min

D.
Flow rate times slope

E.
0.037 m3/s (37 liter/s)

F.
0.29 ft3/s

G.
14.7 psi

H.
6.45 psi

I.
0.75 m3/s

J.
0.77 ft2

K.
0.44 m3/s

Part 2: Identify and discuss the features of a water distribution system.

Your response should be at least 200 words in length.

Part 3: Identify and discuss the features of a sanitary sewer collection system.

Your response should be at least 200 words in length.

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