TCEQ Class C Water Operator License Exam -Questions with Correct
Answers|Verified
Ammonia mixed with chlorine gas creates a - ✔✔white smoke
The most difficult part of a water distribution operator's job. - ✔✔furnish a continuous
supply
Physical connection between a safe and potentially unsafe water source. - ✔✔cross
connection
A distribution system is a - ✔✔looped system
Dead end mains should be flushed - ✔✔every month
Excess nitrate causes a condition called - ✔✔blue baby syndrome
Water hardness is caused by - ✔✔calcium and magnesium
Sewer mains should be __ft away from water mains. - ✔✔9
Water with a pH less than 7 is considered to be - ✔✔acidic
Bacti records are kept for ____yrs and chemical records are kept for ___yrs. - ✔✔5, 10
Bacti samples have to be returned to the lab within ___hrs of the collection time. - ✔✔30
Color in the water supply should be less than _____ units. - ✔✔15
Chlorine is ______ times heavier than air. - ✔✔2.5
, 90% of underground pipe failures are related to improper - ✔✔backfill and bedding
The spoil bank should be located at least ___ft away from the ditch. - ✔✔2
The following minimum residuals is ______mg/L for free chlorine and ____mg/L for total
chlorine. - ✔✔.2, .5
Public opinion of the water utility is _______ at a standstill. - ✔✔never
A bacti sample should be taken every ____ft of pipe. - ✔✔1000
The most common collection point for a bacti sample is the water tap _______. - ✔✔outside
the house
A standpipe is considered ground storage unless it exceeds _____ft above the highest
________. - ✔✔80, service connection
________ protection is the electrochemical method for preventing ________ of metal tanks.
- ✔✔cathodic, corrosion
The _____ is the only cross connection control method approved by _______. - ✔✔air gap,
tceq
_______ on a pipeline depend on the _____ or coefficient of pipe roughness. - ✔✔friction
loss, c factor
__________ occurs whenever there is a ______ in the velocity or direction of water flow. -
✔✔water hammer, sudden change
Answers|Verified
Ammonia mixed with chlorine gas creates a - ✔✔white smoke
The most difficult part of a water distribution operator's job. - ✔✔furnish a continuous
supply
Physical connection between a safe and potentially unsafe water source. - ✔✔cross
connection
A distribution system is a - ✔✔looped system
Dead end mains should be flushed - ✔✔every month
Excess nitrate causes a condition called - ✔✔blue baby syndrome
Water hardness is caused by - ✔✔calcium and magnesium
Sewer mains should be __ft away from water mains. - ✔✔9
Water with a pH less than 7 is considered to be - ✔✔acidic
Bacti records are kept for ____yrs and chemical records are kept for ___yrs. - ✔✔5, 10
Bacti samples have to be returned to the lab within ___hrs of the collection time. - ✔✔30
Color in the water supply should be less than _____ units. - ✔✔15
Chlorine is ______ times heavier than air. - ✔✔2.5
, 90% of underground pipe failures are related to improper - ✔✔backfill and bedding
The spoil bank should be located at least ___ft away from the ditch. - ✔✔2
The following minimum residuals is ______mg/L for free chlorine and ____mg/L for total
chlorine. - ✔✔.2, .5
Public opinion of the water utility is _______ at a standstill. - ✔✔never
A bacti sample should be taken every ____ft of pipe. - ✔✔1000
The most common collection point for a bacti sample is the water tap _______. - ✔✔outside
the house
A standpipe is considered ground storage unless it exceeds _____ft above the highest
________. - ✔✔80, service connection
________ protection is the electrochemical method for preventing ________ of metal tanks.
- ✔✔cathodic, corrosion
The _____ is the only cross connection control method approved by _______. - ✔✔air gap,
tceq
_______ on a pipeline depend on the _____ or coefficient of pipe roughness. - ✔✔friction
loss, c factor
__________ occurs whenever there is a ______ in the velocity or direction of water flow. -
✔✔water hammer, sudden change
