TCEQ Class C Water Operator License Exam Questions and Solutions 100% Solved

TCEQ Class C Water Operator License Exam Questions and Solutions 100% Solved


1. Ammonia mixed with chlorine gas creates a: white smoke
e e e e e e e e


2. The most difficult part of a water distribution operator's job.: furnish a con-
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tinuous supply
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3. Physical connection between a safe and potentially unsafe water source.: -
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cross connection
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4. A distribution system is a: looped system
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5. Dead end mains should be flushed: every month
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6. Excess nitrate causes a condition called: blue baby syndrome
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7. Water hardness is caused by: calcium and magnesium
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8. Sewer mains should be e ft away from water mains.: 9
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9. Water with a pH less than 7 is considered to be: acidic
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10. Bacti records are kept for
e yrs and chemical records are kept for
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yrs.: 5, 10 e e


11. Bacti samples have to be returned to the lab within
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hrs of the collection time.: 30
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12. Color in the water supply should be less than _______________ units.: 15
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13. Chlorine is times heavier than air.: 2.5
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14. 90% of underground pipe failures are related to improper: backfill and bed- ding
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15. The spoil bank should be located at least
e e ft away from the ditch.: 2
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16. The following minimum residuals is
e mg/L for free chlorine and
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mg/L for total chlorine.: .2, .5
e e e e e


17. Public opinion of the water utility is
e at a standstill.: never
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18. A bacti sample should be taken every
e e ft of pipe.: 1000 e e e e e e e e


19. The most common collection point for a bacti sample is the water tap
e e e e e e e e e e e e


.: outside the house e e e


20. A standpipe is considered ground storage unless it exceeds
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ft above the highest .: 80, service connection
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21. protection is the electrochemical method for preventing e e e e e e


of metal tanks.: cathodic, corrosion e e e e

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, 22. The is the only cross connection control method approved by
e e e e e e e e e


.: air gap, tceq e e e


23. on a pipeline depend on the
e e or coefficient of pipe rough-
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ness.: friction loss, c factor
e e e e e


24. occurs whenever there is a e e e e e


in the velocity or direction of water flow.: water hammer, sudden change
e e e e e e e e e e e


25. The ewater pressure required by the rules and regulations is
e e e e e e e e e


psi under any and all conditions.: minimum, 20
e e e e e e e




2e/e
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