Water in an aquifer is called _____ water.
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ground
Gravity filters will remove which of the following from surface water supplies:
a) turbidity
,b) taste and odors
c) nitrates
d) hardness
e) chlorides
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a) turbidity
A restricted zone of ______ ft radius from the raw water intake must be established and
recreational activities and trespassing shall be prohibited.
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200
Dead-end mains must be provided with ________
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Flush valves
TCEQ defines "complete treatment" as the following sequence of processes:
pretreatment disinfection, taste and odor control, continuous coagulation, filtration,
sedimentation, terminal disinfection, and covered storage.
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, False
(1. Pretreatment disinfection
2. Taste and odor control
3. Continuous coagulation
4. Sedimentation
5. Filtration
6. Terminal disinfection
7. Covered storage)
The rotameter indicates the feed rate in _____ per day
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pounds
The primary advantage of elevated storage is that pressure is ___________ when supply
pumps are off or electrical power is lost.
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maintained
An alkaline or basic solution has a pH greater than ____.
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7
, T/F: Methods of fighting corrosion include coatings, temperature adjustment, and
cathodic protection.
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False (pH adjustment, Orthophosphates, Poly-pigs)
T/F: A distribution system without dead ends is called an open system
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False (looped system)
Excessive calcium and _____ are the primary cause of hardness in water.
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Magnesium
If there is no chlorine ______ at a faucet, do not sample, flush longer.
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residual
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ground
Gravity filters will remove which of the following from surface water supplies:
a) turbidity
,b) taste and odors
c) nitrates
d) hardness
e) chlorides
Give this one a try later!
a) turbidity
A restricted zone of ______ ft radius from the raw water intake must be established and
recreational activities and trespassing shall be prohibited.
Give this one a try later!
200
Dead-end mains must be provided with ________
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Flush valves
TCEQ defines "complete treatment" as the following sequence of processes:
pretreatment disinfection, taste and odor control, continuous coagulation, filtration,
sedimentation, terminal disinfection, and covered storage.
Give this one a try later!
, False
(1. Pretreatment disinfection
2. Taste and odor control
3. Continuous coagulation
4. Sedimentation
5. Filtration
6. Terminal disinfection
7. Covered storage)
The rotameter indicates the feed rate in _____ per day
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pounds
The primary advantage of elevated storage is that pressure is ___________ when supply
pumps are off or electrical power is lost.
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maintained
An alkaline or basic solution has a pH greater than ____.
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7
, T/F: Methods of fighting corrosion include coatings, temperature adjustment, and
cathodic protection.
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False (pH adjustment, Orthophosphates, Poly-pigs)
T/F: A distribution system without dead ends is called an open system
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False (looped system)
Excessive calcium and _____ are the primary cause of hardness in water.
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Magnesium
If there is no chlorine ______ at a faucet, do not sample, flush longer.
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residual
