Page 1 of 12
WATER DISTRIBUTION D2 CALIFORNIA
PRACTICE EXAM | {LATEST 2026/ 2027 UPDATE}
COMPLETE ACTUAL AND AUTHENTIC EXAM |
BRAND NEW!
The primary source of synthetic organic compound (SOC)
contamination in water supplies is (are) - ✔✔✔ Correct Answer >
industrial solvents and agricultural pesticides.
The Difference between the static ground water level and the
pumping level is the - ✔✔✔ Correct Answer > drawdown
The principal purpose of an altitude valve on an elevated tank is
to - ✔✔✔ Correct Answer > control maximum filling level in distribution
storage.
The term primacy means the - ✔✔✔ Correct Answer > authority by the
states to supersede the USEPA drinking water regulations.
Reciprocating positive displacement pumps are also known as -
✔✔✔ Correct Answer > Piston pumps
, Page 2 of 12
Modertely hard water will have a hardness range of ----- mg/L
as - ✔✔✔ Correct Answer > 61 to 120
A common method for removing hydrogen sulfide from water is -
✔✔✔ Correct Answer > aeration
The treatment process designed to kill pathogenic organisms is -
✔✔✔ Correct Answer > disinfection
Lead in drinking water can result in - ✔✔✔ Correct Answer > impaired
mental functioning in children.
A disease that might be transferred to a new victim through
water is - ✔✔✔ Correct Answer > typhoid
An average percentage range for unaccounted for water in a fully
metered system is - ✔✔✔ Correct Answer > 11 to 15%
A cross connection is defined as a connection between - ✔✔✔
Correct Answer > a potable water system and nonpotable water
system.
WATER DISTRIBUTION D2 CALIFORNIA
PRACTICE EXAM | {LATEST 2026/ 2027 UPDATE}
COMPLETE ACTUAL AND AUTHENTIC EXAM |
BRAND NEW!
The primary source of synthetic organic compound (SOC)
contamination in water supplies is (are) - ✔✔✔ Correct Answer >
industrial solvents and agricultural pesticides.
The Difference between the static ground water level and the
pumping level is the - ✔✔✔ Correct Answer > drawdown
The principal purpose of an altitude valve on an elevated tank is
to - ✔✔✔ Correct Answer > control maximum filling level in distribution
storage.
The term primacy means the - ✔✔✔ Correct Answer > authority by the
states to supersede the USEPA drinking water regulations.
Reciprocating positive displacement pumps are also known as -
✔✔✔ Correct Answer > Piston pumps
, Page 2 of 12
Modertely hard water will have a hardness range of ----- mg/L
as - ✔✔✔ Correct Answer > 61 to 120
A common method for removing hydrogen sulfide from water is -
✔✔✔ Correct Answer > aeration
The treatment process designed to kill pathogenic organisms is -
✔✔✔ Correct Answer > disinfection
Lead in drinking water can result in - ✔✔✔ Correct Answer > impaired
mental functioning in children.
A disease that might be transferred to a new victim through
water is - ✔✔✔ Correct Answer > typhoid
An average percentage range for unaccounted for water in a fully
metered system is - ✔✔✔ Correct Answer > 11 to 15%
A cross connection is defined as a connection between - ✔✔✔
Correct Answer > a potable water system and nonpotable water
system.
