TCEQ Class D Water Operator License Exam
1: What is the primary purpose of a water distribution system? --- correct
answer ---
To deliver safe and potable water to consumers at adequate pressure and
quantity.
2: What does TCEQ stand for? --- correct answer ---
Texas Commission on Environmental Quality.
3: What is the minimum free chlorine residual required in a public water
system? --- correct answer ---
0.2 mg/L.
4: What is turbidity a measure of in water? --- correct answer ---
The cloudiness or haziness caused by particles and suspended solids.
, 5: What is the maximum contaminant level (MCL) for nitrate in drinking
water? --- correct answer --- 10 mg/L as nitrogen.
6: What is the purpose of a backflow prevention device? --- correct answer --
-
To prevent contamination of the potable water supply by ensuring that
water flows in only one direction.
7: What is the primary function of a water treatment plant? --- correct
answer ---
To remove contaminants and pathogens from raw water to make it safe for
human consumption.
8: What is the term for water loss due to leaks, breaks, or unauthorized use
in a distribution system? --- correct answer ---
Non-revenue water.
9: What is the standard unit of measure for water pressure? --- correct
answer --- Pounds per square inch (psi).
1: What is the primary purpose of a water distribution system? --- correct
answer ---
To deliver safe and potable water to consumers at adequate pressure and
quantity.
2: What does TCEQ stand for? --- correct answer ---
Texas Commission on Environmental Quality.
3: What is the minimum free chlorine residual required in a public water
system? --- correct answer ---
0.2 mg/L.
4: What is turbidity a measure of in water? --- correct answer ---
The cloudiness or haziness caused by particles and suspended solids.
, 5: What is the maximum contaminant level (MCL) for nitrate in drinking
water? --- correct answer --- 10 mg/L as nitrogen.
6: What is the purpose of a backflow prevention device? --- correct answer --
-
To prevent contamination of the potable water supply by ensuring that
water flows in only one direction.
7: What is the primary function of a water treatment plant? --- correct
answer ---
To remove contaminants and pathogens from raw water to make it safe for
human consumption.
8: What is the term for water loss due to leaks, breaks, or unauthorized use
in a distribution system? --- correct answer ---
Non-revenue water.
9: What is the standard unit of measure for water pressure? --- correct
answer --- Pounds per square inch (psi).
