age 1 of 26
OIT WATER TREATMENT FINAL EXAM PREP 2025/2026
COMPLETE QUESTIONS WITH CORRECT DETAILED
ANSWERS || 100% GUARANTEED PASS <BRAND
NEW VERSION>
If a person is poisoned by inhaling fluoride what is the first
symptom? .......Answer.........Sharp biting pain to the nose
followed by a runny nose or a nose bleed
What is the MCL for Trihalomethanes .......Answer.........0.08
milligrams per liter
Shortened filter runs can occur because of air bound filters, why
is this? .......Answer.........Caused by the release of dissolved air in
saturated cold water due to a decrease in pressure
,age 2 of 26
Whats a rapid method of estimating total dissolved content of a
water supply? .......Answer.........Specific conductance
Waterfall aeration devices may cause what type of problems?
.......Answer.........Encourage biological growth
Drinking water waste is considered what type of waste?
.......Answer.........Industrial
pH kept at ____ will precipitate calcium carbonate?
.......Answer.........10
Excess pink water can be caused by what?
.......Answer.........Potassium permanganate overdose
Pressure in a distribution system should not fall below what
level? .......Answer.........20psi
, age 3 of 26
What is the most expensive aeration device?
.......Answer.........Mechanical
In the Ion exchange process, calcium(Ca) and magnesium(Mg)
Ions are exchanged for what? .......Answer.........Na- Ions
What are the four stages of the operation of an ion exchange
softener? .......Answer.........Service, Brine, Backwash, Rinse
What is the chief cause of accidents?
.......Answer.........Carelessness/ negligence
Drinking water should be free of what 2 things?
.......Answer.........Bacteria and toxins
Ton tanks have how many fusible metal safety plugs on each
ends? .......Answer.........3 to 4- each side
OIT WATER TREATMENT FINAL EXAM PREP 2025/2026
COMPLETE QUESTIONS WITH CORRECT DETAILED
ANSWERS || 100% GUARANTEED PASS <BRAND
NEW VERSION>
If a person is poisoned by inhaling fluoride what is the first
symptom? .......Answer.........Sharp biting pain to the nose
followed by a runny nose or a nose bleed
What is the MCL for Trihalomethanes .......Answer.........0.08
milligrams per liter
Shortened filter runs can occur because of air bound filters, why
is this? .......Answer.........Caused by the release of dissolved air in
saturated cold water due to a decrease in pressure
,age 2 of 26
Whats a rapid method of estimating total dissolved content of a
water supply? .......Answer.........Specific conductance
Waterfall aeration devices may cause what type of problems?
.......Answer.........Encourage biological growth
Drinking water waste is considered what type of waste?
.......Answer.........Industrial
pH kept at ____ will precipitate calcium carbonate?
.......Answer.........10
Excess pink water can be caused by what?
.......Answer.........Potassium permanganate overdose
Pressure in a distribution system should not fall below what
level? .......Answer.........20psi
, age 3 of 26
What is the most expensive aeration device?
.......Answer.........Mechanical
In the Ion exchange process, calcium(Ca) and magnesium(Mg)
Ions are exchanged for what? .......Answer.........Na- Ions
What are the four stages of the operation of an ion exchange
softener? .......Answer.........Service, Brine, Backwash, Rinse
What is the chief cause of accidents?
.......Answer.........Carelessness/ negligence
Drinking water should be free of what 2 things?
.......Answer.........Bacteria and toxins
Ton tanks have how many fusible metal safety plugs on each
ends? .......Answer.........3 to 4- each side
