CLASS C WATER OPERATOR LICENSE EXAM WITH QUIZ & ANS 100% SOLVED
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
, CLASS C WATER OPERATOR LICENSE EXAM WITH QUIZ & ANS 100% SOLVED
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
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
, CLASS C WATER OPERATOR LICENSE EXAM WITH QUIZ & ANS 100% SOLVED
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
