WATER DISTRIBUTION TEST (2025) COMPREHENSIVE
QUESTIONS AND VERIFIED DETAILED SOLUTIONS
( MULTIPLE CHOICES) |100% CORRECT!!
Distribution systems are usually laid out in which of the following
patterns besides Tree shaped and Grid designs?
a. Loops and/or circular designs
b. Vertical designs without backflow prevention devices
c. Horizontal lines that flow into open ponds then back into a closed pipe
d. Horizontal lines that flow into underground sumps then back into a
closed pipe Correct Answers a. Loops and/or circular designs
Dead ends in a system are usually located on
a. Loops and/or circular designs
b. Tree shaped and Grid designs
c. Oval designs
d. transmission mains
e. Cul de Sac's with return lines Correct Answers b. Tree shaped and
Grid designs
An operator may refer to Piezometric elevation, static head, or pressure
head as
a. horizontal water elevation
b. water pressure from a pump
c. maximum pressure from a fire hydrant
,d. vertical water column height Correct Answers d. vertical water
column height
A downstream closed sectionalizing valve without pressure reducing
valves in the system will have which of the following pressures placed
upon it?
a. the water surface elevation from the last point where the water is open
to the atmosphere
b. the back pressures from a downstream point
c. the downstream booster pump operation
d. the operation of a fire hydrant located immediately downstream of the
hydrant Correct Answers a. the water surface elevation from the last
point where the water is open to the atmosphere
What is the main purpose of a water storage facility?
a. to allow storage reserve during wet periods
b. to help maintain adequate pressures throughout the entire system
c. to meet needs for fire protection
d. to provide sufficient amount of water to average or equalize the daily
demands plus provide minimum pressures to fight fires Correct Answers
d. to provide sufficient amount of water to average or equalize the daily
demands plus provide minimum pressures to fight fires
Electrical demand in a wiring system is determined by the amount of
a. Ohms in the entire system
b. Voltage a system draws
, c. Watts consumed
d. water pressure in the system Correct Answers c. Watts consumed
Baffling inside a storage facility may be needed to prevent "hot spots"
and
a. straight through flows
b. long contact times with disinfectants
c. high chlorine residuals throughout the facility
d. high temperatures throughout the storage facility Correct Answers a.
straight through flows
Chlorine may be added to water in a continuous, slug, and/or the
_______ method to initially disinfect a pipeline?
a. segmented
b. tablet
c. low dose
d. air injection Correct Answers b. tablet
Wear rings in a centrifugal pump are designed to
a. prevent excessive internal water circulation between the suction and
discharge sides of a pump
b. prevent wear of the impeller and inside case
c. allow excessive internal water circulation to occur between the
suction and discharge
QUESTIONS AND VERIFIED DETAILED SOLUTIONS
( MULTIPLE CHOICES) |100% CORRECT!!
Distribution systems are usually laid out in which of the following
patterns besides Tree shaped and Grid designs?
a. Loops and/or circular designs
b. Vertical designs without backflow prevention devices
c. Horizontal lines that flow into open ponds then back into a closed pipe
d. Horizontal lines that flow into underground sumps then back into a
closed pipe Correct Answers a. Loops and/or circular designs
Dead ends in a system are usually located on
a. Loops and/or circular designs
b. Tree shaped and Grid designs
c. Oval designs
d. transmission mains
e. Cul de Sac's with return lines Correct Answers b. Tree shaped and
Grid designs
An operator may refer to Piezometric elevation, static head, or pressure
head as
a. horizontal water elevation
b. water pressure from a pump
c. maximum pressure from a fire hydrant
,d. vertical water column height Correct Answers d. vertical water
column height
A downstream closed sectionalizing valve without pressure reducing
valves in the system will have which of the following pressures placed
upon it?
a. the water surface elevation from the last point where the water is open
to the atmosphere
b. the back pressures from a downstream point
c. the downstream booster pump operation
d. the operation of a fire hydrant located immediately downstream of the
hydrant Correct Answers a. the water surface elevation from the last
point where the water is open to the atmosphere
What is the main purpose of a water storage facility?
a. to allow storage reserve during wet periods
b. to help maintain adequate pressures throughout the entire system
c. to meet needs for fire protection
d. to provide sufficient amount of water to average or equalize the daily
demands plus provide minimum pressures to fight fires Correct Answers
d. to provide sufficient amount of water to average or equalize the daily
demands plus provide minimum pressures to fight fires
Electrical demand in a wiring system is determined by the amount of
a. Ohms in the entire system
b. Voltage a system draws
, c. Watts consumed
d. water pressure in the system Correct Answers c. Watts consumed
Baffling inside a storage facility may be needed to prevent "hot spots"
and
a. straight through flows
b. long contact times with disinfectants
c. high chlorine residuals throughout the facility
d. high temperatures throughout the storage facility Correct Answers a.
straight through flows
Chlorine may be added to water in a continuous, slug, and/or the
_______ method to initially disinfect a pipeline?
a. segmented
b. tablet
c. low dose
d. air injection Correct Answers b. tablet
Wear rings in a centrifugal pump are designed to
a. prevent excessive internal water circulation between the suction and
discharge sides of a pump
b. prevent wear of the impeller and inside case
c. allow excessive internal water circulation to occur between the
suction and discharge
