1|Page
Water Distribution D2 California Exam||Verified
Questions And Answers Practice Questions with
Solutions Newest | Already Graded A+||Newest
Exam!!!
The primary reason for the use of a dry barrel fire hydrant
is to - Answer-keep the hydrant from freezing
The component parts of a well include all of the following
except - Answer-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 - Answer-more than
Which of the following is the principal constituent in water
that causes corrosion of metals? - Answer-dissolved
oxygen
Which component of a centritugal pump moves the water?
- Answer-impeller
,2|Page
A record containing the size, location, and ties of water
mains; valves; hydrants; tanks; reservoirs; and pump
stations is called a - Answer-comprehensive map
What term describes water that is suitable for drinking -
Answer-potable
a pump delivering 288,000 gallons of water in 24 hours
operates at what average flow rate? - Answer-200 gallons
per minute
Velocity of flow in mains is usually expressed in terms of -
Answer-Feet per second
A competent person at an excavation work site - Answer-Is
capable of identifying hazarda and has the authority to
take corrrective measures.
Hydrogen sulfide gas smells like - Answer-rotten eggs
which of the following methods can be used to renove high
iron content from a well supply? - Answer-oxidation and
filtration.
,3|Page
The Difference between the static ground water level and
the pumping level is the - Answer-drawdown
A customer complaint about the presence of brown floc in
tap water can best be handled by - Answer-investigating
the problem as soon as possible
The term "aquifer" relates to which one of the following ? -
Answer-groundwater
One indication of corrosive water is a high concentration of
- Answer-Carbon dioxide
Catholic protection means protection against - Answer-
Corrosion
Hardness may be expressed in - Answer-Milligrams per
litre as CaCO3
The basic unit of electrical power is the - Answer-Watt
, 4|Page
A standpipe is 84 inches in diameter and 20 feet high.
How many gallons are in the standpipe when the water is
16 feet deep? - Answer-4,603
Check valves are used to - Answer-permit flow in only one
driection
Standard pumper connection fire hydranta should not be
installed on water mains smaller then ----inches in
diameter. - Answer-6
Beards or long sideburns prohibit an operator from safely -
Answer-wearing the face mask of a self contained
breathing apparatus.
The water table is defined as the - Answer-upper surface
of the groundwater.
The shaft speed of an electric motor is most commonly
expressed in units of - Answer-revolutions per minute
A coupon test installation in a distribution system is used
to - Answer-determine the rate scaling or corrosion.
Water Distribution D2 California Exam||Verified
Questions And Answers Practice Questions with
Solutions Newest | Already Graded A+||Newest
Exam!!!
The primary reason for the use of a dry barrel fire hydrant
is to - Answer-keep the hydrant from freezing
The component parts of a well include all of the following
except - Answer-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 - Answer-more than
Which of the following is the principal constituent in water
that causes corrosion of metals? - Answer-dissolved
oxygen
Which component of a centritugal pump moves the water?
- Answer-impeller
,2|Page
A record containing the size, location, and ties of water
mains; valves; hydrants; tanks; reservoirs; and pump
stations is called a - Answer-comprehensive map
What term describes water that is suitable for drinking -
Answer-potable
a pump delivering 288,000 gallons of water in 24 hours
operates at what average flow rate? - Answer-200 gallons
per minute
Velocity of flow in mains is usually expressed in terms of -
Answer-Feet per second
A competent person at an excavation work site - Answer-Is
capable of identifying hazarda and has the authority to
take corrrective measures.
Hydrogen sulfide gas smells like - Answer-rotten eggs
which of the following methods can be used to renove high
iron content from a well supply? - Answer-oxidation and
filtration.
,3|Page
The Difference between the static ground water level and
the pumping level is the - Answer-drawdown
A customer complaint about the presence of brown floc in
tap water can best be handled by - Answer-investigating
the problem as soon as possible
The term "aquifer" relates to which one of the following ? -
Answer-groundwater
One indication of corrosive water is a high concentration of
- Answer-Carbon dioxide
Catholic protection means protection against - Answer-
Corrosion
Hardness may be expressed in - Answer-Milligrams per
litre as CaCO3
The basic unit of electrical power is the - Answer-Watt
, 4|Page
A standpipe is 84 inches in diameter and 20 feet high.
How many gallons are in the standpipe when the water is
16 feet deep? - Answer-4,603
Check valves are used to - Answer-permit flow in only one
driection
Standard pumper connection fire hydranta should not be
installed on water mains smaller then ----inches in
diameter. - Answer-6
Beards or long sideburns prohibit an operator from safely -
Answer-wearing the face mask of a self contained
breathing apparatus.
The water table is defined as the - Answer-upper surface
of the groundwater.
The shaft speed of an electric motor is most commonly
expressed in units of - Answer-revolutions per minute
A coupon test installation in a distribution system is used
to - Answer-determine the rate scaling or corrosion.
