11. In the TO, where are water
16. For a length of pipe with a
distribution lines normally placed?
coefficient of friction (c) of 100,
a. cross-country
what minimum diameter pipe will you
b. adjacent to roadways
select (only 2-, 3-, 4-, and 5-inch
c. shortest route
pipe are available) for a flow rate
d. adjacent to streams
of 100 gallons per minute and a
maximum headloss of 10 feet of
12. You are installing a water
water in its 500-foot length?
distribution system whose pipe has
a. 2
c. 4
a maximum safe pressure rating of
b. 3
d. 5
120 pounds per square inch.
What
is the maximum elevation difference
17. What is the smallest pipe size
in feet that you can have between
(in inches) that can be used for a
the tank and the lowest point in
flow of 70 gallons per minute, a
the system?
coefficent of friction (c) of 150,
a. 248
c. 277
and a headloss of 5 feet of water
b. 263
d. 289
in its 1,000-foot length?
a. 3
c. 5
13. For population of 1,850 men,
b. 4
d. 6
what is the total peak water demand
in
gallons
per
minute
for
a
18. Figure
17
shows
a
water
facility containing 10 outlets and
distribution system.
The peak
21 shower heads?
demands for each of the buildings
a. 26
c. 39
are shown below.
b. 34
d. 43
14. What is the allowable headloss
in feet of water from the storage
tank to the service connection if
the tank elevation is 265 feet, the
service connection elevation is 141
feet, and 25 psi is required at the
connection?
a. 41
c. 59
b. 53
d. 66
15. What will be the flow in
What is the peak flow in gallons
gallons per minute for a section of
per minute the line from C to D
7-inch pipe if the headloss is 5
must be able to carry?
feet of water in its 1,000 foot
a. 200
c. 230
length
and
the
coefficient
of
b. 225
d. 255
friction is 100?
a. 210
c. 270
b. 240
d. 300
Figure 17.
For use with exercise 18.
3-25
Previous Page
