WATER DISTRIBUTION D2 CALIFORNIA TEST
ACTUAL TEST 2026 | ALL QUESTIONS AND
CORRECT ANSWERS | VERIFIED ANSWERS |
JUST RELEASED
The primary source ofof synthetic organic compound (SOC)
contamination in water supplies is (are) ---------CORRECT ANSWER--------
---------industrial solvents and agricultural pesticides.
Water samples are analyzed for the coliform group of bacteria because
these bacteria ---------CORRECT ANSWER-----------------indicate the
possible presence of disease causing organisms.
Lead in drinking water is primarily the result of ---------CORRECT
ANSWER-----------------corrosion within the distribution system and
residential plumbing.
Pressure in a pipeline may be affected by ---------CORRECT ANSWER------
-----------friction and elevation.
, What is the different between a maximum contaminant level (MCL) and
a secondary maximum contaminant level (SMCL) ---------CORRECT
ANSWER-----------------MCLs relate to health effects, while SMCLs relate
to aesthetic concerns
The purpose of an electrical lock out device is to ---------CORRECT
ANSWER-----------------positively prevent the operation of an electrical
circuit.
The maximum contaminant level goal (MCLG) of known or probable
carcingens is ---------CORRECT ANSWER-----------------zero
A public water system must comply with safe drinking water act
(SDWA) regulations based on ---------CORRECT ANSWER-----------------all
of the above
An objectionable feature of iron and manganese in water is ---------
CORRECT ANSWER-----------------staining of fixtures.
ACTUAL TEST 2026 | ALL QUESTIONS AND
CORRECT ANSWERS | VERIFIED ANSWERS |
JUST RELEASED
The primary source ofof synthetic organic compound (SOC)
contamination in water supplies is (are) ---------CORRECT ANSWER--------
---------industrial solvents and agricultural pesticides.
Water samples are analyzed for the coliform group of bacteria because
these bacteria ---------CORRECT ANSWER-----------------indicate the
possible presence of disease causing organisms.
Lead in drinking water is primarily the result of ---------CORRECT
ANSWER-----------------corrosion within the distribution system and
residential plumbing.
Pressure in a pipeline may be affected by ---------CORRECT ANSWER------
-----------friction and elevation.
, What is the different between a maximum contaminant level (MCL) and
a secondary maximum contaminant level (SMCL) ---------CORRECT
ANSWER-----------------MCLs relate to health effects, while SMCLs relate
to aesthetic concerns
The purpose of an electrical lock out device is to ---------CORRECT
ANSWER-----------------positively prevent the operation of an electrical
circuit.
The maximum contaminant level goal (MCLG) of known or probable
carcingens is ---------CORRECT ANSWER-----------------zero
A public water system must comply with safe drinking water act
(SDWA) regulations based on ---------CORRECT ANSWER-----------------all
of the above
An objectionable feature of iron and manganese in water is ---------
CORRECT ANSWER-----------------staining of fixtures.
