WorksheetsWater Treatment
Total questions: 15
Worksheet time: 9mins
Reverse Osmosis units use what to purify water
Filters
Membrane technology
Big Blue
Demineralization
What is the minimum net pressure for a home RO unit to produce water?
20 psi
30 psi
40 psi
50 psi
When the temperature increases the rate of permeate (production) increases?
True
False
how many pounds a square inch of pressure is needed to removed 100 ppm TDS?
10
1000
1
100
The step in softener operation where the bed is expanded and loosened is called what?
Backwash
Rinse
Brine Draw
Brine Fill
1 gpg of hardness equals how many ppm?
25.9
13.2
17.1
1
what is an MCL?
(a)
What should a 60k softener be set at for salt consumption per AWS standard?
15lbs
12lbs
8lbs
16lbs
How many gallons of water equal 1 cubic foot?
7.48
6.52
3.21
15.58
Does softening increase the TDS of the water?
Yes
No
Can a softener remove iron, and manganese?
Yes
No
what do nitrates and nitrites in water supplies cause?
Cancer
TTHMs
Mottled Teeth
Blue baby syndrome
how long is a WTS license good for?
1 year
2 years
3 years
never expires?
who is the governing body of all water treatment in Texas?
(a)
How many grains of hardness can 1 cubic foot of resin remove per AWS standards?
64,000
48,000
24,000
36,000
