Water Distribution Test / Actual Test
Questions & Certified Answers,
2025/2026
_____________Quiz____________?
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 -
Answer✓✓
a. Loops and/or circular designs
_____________Quiz____________?
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 -
Answer✓✓
b. Tree shaped and Grid designs
,_____________Quiz____________?
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 -
Answer✓✓
d. vertical water column height
_____________Quiz____________?
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 -
Answer✓✓
a. the water surface elevation from the last point where the water is open to the atmosphere
_____________Quiz____________?
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 -
Answer✓✓
d. to provide sufficient amount of water to average or equalize the daily demands plus provide
minimum pressures to fight fires
_____________Quiz____________?
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 -
Answer✓✓
c. Watts consumed
_____________Quiz____________?
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 -
Answer✓✓
a. straight through flows
, _____________Quiz____________?
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 -
Answer✓✓
b. tablet
_____________Quiz____________?
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
d. both a & b are correct, but not c -
Answer✓✓
d. both a & b are correct, but not c
_____________Quiz____________?
Packing ring notches in a centrifugal type pump should be ______ when placed in the stuffing
box?
a. water tight
b. staggered 90º
Questions & Certified Answers,
2025/2026
_____________Quiz____________?
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 -
Answer✓✓
a. Loops and/or circular designs
_____________Quiz____________?
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 -
Answer✓✓
b. Tree shaped and Grid designs
,_____________Quiz____________?
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 -
Answer✓✓
d. vertical water column height
_____________Quiz____________?
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 -
Answer✓✓
a. the water surface elevation from the last point where the water is open to the atmosphere
_____________Quiz____________?
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 -
Answer✓✓
d. to provide sufficient amount of water to average or equalize the daily demands plus provide
minimum pressures to fight fires
_____________Quiz____________?
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 -
Answer✓✓
c. Watts consumed
_____________Quiz____________?
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 -
Answer✓✓
a. straight through flows
, _____________Quiz____________?
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 -
Answer✓✓
b. tablet
_____________Quiz____________?
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
d. both a & b are correct, but not c -
Answer✓✓
d. both a & b are correct, but not c
_____________Quiz____________?
Packing ring notches in a centrifugal type pump should be ______ when placed in the stuffing
box?
a. water tight
b. staggered 90º
