The chemical symbol for sodium is:
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Na
Most of the surface water in Texas comes from:
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Precipitation that falls within the state
What is used to detect chlorine leaks?
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10% solution of ammonia hydroxide (ammonia)
How many gallons per minute is a flow of 1.0 MGD?
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695 gpm
When opening and closing valves in high pressure lines, the valves should be opened
and closed how?
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Slowly
Five gallons of water weighs ___ lbs
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41.7 lbs
The amount of dissolved oxygen that can remain in water depends primarily on what?
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, Water temperature
Filters in a water treatment process are primarily for removing or reducing what?
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Turbidity
The State Board of Insurance recommended capacity for ground storage includes:
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4-6 hour supply, 130 gallons per capita, 200 gallons per connection
Water that requires a large amount of soap to produce an acceptable lather is said to
be what?
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Hard
Sedimentation is improved by:
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, Uniform, horizontal, low velocity flow across the basin
A chlorine residual in water can be determined by using the reagent:
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DPD - diethyl-p-pheylenediamine
When collecting a distribution sample for bacteriological testing, the person
collecting the sample should allow water to run ___ before filling the sample bottle.
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As long as necessary to permit clearing of the service line
The occurrence of mud balls in beds of filters may be prevented by:
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Proper sedimentation
The chemical symbol of iron is:
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Na
Most of the surface water in Texas comes from:
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Precipitation that falls within the state
What is used to detect chlorine leaks?
,Give this one a try later!
10% solution of ammonia hydroxide (ammonia)
How many gallons per minute is a flow of 1.0 MGD?
Give this one a try later!
695 gpm
When opening and closing valves in high pressure lines, the valves should be opened
and closed how?
Give this one a try later!
Slowly
Five gallons of water weighs ___ lbs
Give this one a try later!
41.7 lbs
The amount of dissolved oxygen that can remain in water depends primarily on what?
Give this one a try later!
, Water temperature
Filters in a water treatment process are primarily for removing or reducing what?
Give this one a try later!
Turbidity
The State Board of Insurance recommended capacity for ground storage includes:
Give this one a try later!
4-6 hour supply, 130 gallons per capita, 200 gallons per connection
Water that requires a large amount of soap to produce an acceptable lather is said to
be what?
Give this one a try later!
Hard
Sedimentation is improved by:
Give this one a try later!
, Uniform, horizontal, low velocity flow across the basin
A chlorine residual in water can be determined by using the reagent:
Give this one a try later!
DPD - diethyl-p-pheylenediamine
When collecting a distribution sample for bacteriological testing, the person
collecting the sample should allow water to run ___ before filling the sample bottle.
Give this one a try later!
As long as necessary to permit clearing of the service line
The occurrence of mud balls in beds of filters may be prevented by:
Give this one a try later!
Proper sedimentation
The chemical symbol of iron is:
Give this one a try later!
