WATER DISTRUBUTION D2 CALIFORNIA EXAM
2026/2027 WITH ACTUAL CORRECT QUESTIONS
AND VERIFIED DETAILED ANSWERS
|CURRENTLY TESTING QUESTIONS AND
SOLUTIONS|ALREADY GRADED A+|NEWEST
|BRAND NEW VERSION!!|JUST RELEASED
A suspension of very minute particles that cause an appearance of cloundiness is called
turbidity.
The diameter of a cylindrical tank is 10 feet. If filled to a depth of 10 feet, it will contain
appoximately how many gallons of water?
5,872
How many cubic yards of earth are excavated if you dig a trench 3 feet wide, 9 feet deep,
and 1,200 feet long?
1,200
Hardness i n water is caused by
calcium and magnesium.
Sodium hypochlorite is
a compound that can be purchased in liquid solution and can be used for disinfection.
The abbreviation DO stands for
dissolved oxygen
High nitrate concentrations in water can affect
infanta.
1|Page
, A corporatio stop is used to
connect the service line to the water main under pressure
The Difference between the static ground water level and the pumping level is the
drawdown
A customer complaint about the presence of brown floc in tap water can best be handled
by
investigating the problem as soon as possible
The term "aquifer" relates to which one of the following ?
groundwater
One indication of corrosive water is a high concentration of
Carbon dioxide
Catholic protection means protection against
Corrosion
The primary reason for the use of a dry barrel fire hydrant is to
keep the hydrant from freezing
The component parts of a well include all of the following except
pressure switch
At the same barometric pressure, the amount of dissolved oxygen in cold water tends to be
............ the amount of dissolved oxygen in the warm water
more than
Which of the following is the principal constituent in water that causes corrosion of
metals?
2|Page
2026/2027 WITH ACTUAL CORRECT QUESTIONS
AND VERIFIED DETAILED ANSWERS
|CURRENTLY TESTING QUESTIONS AND
SOLUTIONS|ALREADY GRADED A+|NEWEST
|BRAND NEW VERSION!!|JUST RELEASED
A suspension of very minute particles that cause an appearance of cloundiness is called
turbidity.
The diameter of a cylindrical tank is 10 feet. If filled to a depth of 10 feet, it will contain
appoximately how many gallons of water?
5,872
How many cubic yards of earth are excavated if you dig a trench 3 feet wide, 9 feet deep,
and 1,200 feet long?
1,200
Hardness i n water is caused by
calcium and magnesium.
Sodium hypochlorite is
a compound that can be purchased in liquid solution and can be used for disinfection.
The abbreviation DO stands for
dissolved oxygen
High nitrate concentrations in water can affect
infanta.
1|Page
, A corporatio stop is used to
connect the service line to the water main under pressure
The Difference between the static ground water level and the pumping level is the
drawdown
A customer complaint about the presence of brown floc in tap water can best be handled
by
investigating the problem as soon as possible
The term "aquifer" relates to which one of the following ?
groundwater
One indication of corrosive water is a high concentration of
Carbon dioxide
Catholic protection means protection against
Corrosion
The primary reason for the use of a dry barrel fire hydrant is to
keep the hydrant from freezing
The component parts of a well include all of the following except
pressure switch
At the same barometric pressure, the amount of dissolved oxygen in cold water tends to be
............ the amount of dissolved oxygen in the warm water
more than
Which of the following is the principal constituent in water that causes corrosion of
metals?
2|Page
