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Class D Water Operator License Exam TCEQ questions & answers.
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Class D Water Operator License Exam TCEQquestions & answers
T/F: In Texas, about 75% of all water is used for commercial, industrial, or agricultural purposes. -
Correct Answer - True
Water covers approximately ________ of Earth's surface. - Correct Answer - 71%
Drought is an extended period when a region receives a deficiency in its ________ water supply. -
Correct Answer - atmospheric, ground, or surface
T/F: Only about 1 gallon of tap water per person/day is used for drinking and cooking - Correct Answer -
True
Excluding outside water use, the average household uses about _______ gallons of water per month for
inside use - Correct Answer - 2,000
T/F: Only 3% of all the fresh water on earth can be easily accessed for use. - Correct Answer - False (only
1%)
T/F: In 1978, the Texas Department of Health (TDH) assumed primacy over the Safe Drinking Water Act
from the EPA. - Correct Answer - True
T/F: PWS officials should be pro-active in their approach to terrorism. - Correct Answer - True
_________ permits the owner of a well to pump as much water as desired, even if the water is drained
from beneath the land of others. - Correct Answer - Rule of Capture
In Texas, agricultural water demand accounts for about ___% of the total water used. - Correct Answer -
57%
T/F: An example of a non-transient non-community PWS is a rural school. - Correct Answer - True
Monitoring average and maximum daily water ______ enables us to plan ahead for growth. - Correct
Answer - Demand
T/F: The Safe Drinking Water Act sets standards for drinking water including physical, chemical,
bacteriological, and radiological characteristics. - Correct Answer - True
, "Potable" means water is safe to drink and has a measurable chlorine ________. - Correct Answer -
Residual
The plant operator is responsible for a sufficient supply of safe and ________ drinking water. - Correct
Answer - Palatable
T/F: The Texas State Board of Fire Insurance requires utilities that provide fire protection to have a
minimum amount of water available based on 30 gals per person per day. - Correct Answer - False (130
gals per person per day)
T/F: The primary state regulator of water utilities is the TCEQ. - Correct Answer - True
T/F: All community and non-transient non-community PWS, regardless of source of water, must be
under the supervision of a licensed water works operator. - Correct Answer - True
Meter readers bring in operating revenue and profoundly impact _____ relations. - Correct Answer -
Public
The federal regulator of drinking water is the _____. - Correct Answer - EPA
T/F: Duties of distribution operator include repairing leaks, making taps, flushing mains, and taking
radiological samples. - Correct Answer - False (Repair leaks, Make taps, Flush mains, Operate pumps,
Take *bacteriological* samples)
A service area has 1000 service connections. What can we estimate the population of this service area to
be? - Correct Answer - 3,000 (multiply connections x 3)
T/F: The State must be notified after an existing facility is changed or after construction of a new facility.
- Correct Answer - False (must notify *before*)
T/F: A Class "D" license is valid for 2 years at ground and purchase water systems with 250 connections
or less. - Correct Answer - False (3 years)
T/F: The physical characteristics of water are color, taste, odor, temperature, and turbidity. - Correct
Answer - True
An alkaline or basic solution has a pH greater than ____. - Correct Answer - 7
T/F: The terms mg/L and ppm are not interchangeable. - Correct Answer - False (they are
interchangeable)
Suspended solids in water cannot be filtered out. - Correct Answer - False (they can)
Solids, water hardness, pH and gases are ____ characteristics. - Correct Answer - Chemical
T/F: There are 2 hydrogen atoms and 1 oxygen atom in each water molecule. - Correct Answer - True
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