Chapter 14 Water Supply Systems
Questions with Accurate Answers
A lake or stream is an example of a:
A) municipal water system.
B) static water source.
C) dry hydrant.
D) water shuttle. correct answer B) static water source.
According to NFPA Standard 24, what is the minimum distance between the
center of a fire hydrant hose outlet and the finished grade of the ground around
the hydrant?
A) Three feet
B) Thirty inches
C) Two feet
D) Eighteen inches correct answer D) Eighteen inches
After removing caps from a fire department connection, a fire fighter should:
A) connect the hose to the coupling.
B) visually inspect the interior to ensure there are no obstructions.
C) open the valves to back flush the connection.
D) pull the hose from the engine. correct answer B) visually inspect the interior to
ensure there are no obstructions.
,At the scene of a fire, a pump operator uses the difference between two types of
pressure to determine how many more attack lines or appliances could be
operated from the available water supply. What are these two types of pressure?
A) Flow and dynamic
B) Dynamic and static
C) Static and residual
D) Residual and flow correct answer C) Static and residual
Friction loss is affected by three factors. What is one of those?
A) Incident elevation
B) Hose diameter
C) Atmospheric pressure
D) Nozzle type correct answer B) Hose diameter
How close must a fire engine be to a static water source in order to be able to
draft directly from it?
A) There is no physical limit.
B) Within two hundred and fifty feet
C) Within fifty feet
D) Within twenty feet correct answer D) Within twenty feet
How many gallons of water do fire department tankers usually carry?
A) 1000 or less
B) 1000 to 3500
C) 3500 to 6000
, D) 6000 to 9000 correct answer B) 1000 to 3500
How should a hydrant be opened to prevent a water surge (hammer), if possible?
A) Surge can't be prevented.
B) Connect hose to the engine intake prior to opening.
C) Quickly
D) Slowly correct answer D) Slowly
Hydrants should be checked periodically. What is the minimum acceptable
interval between such checks?
A) Every five years
B) Triannually
C) Biannually
D) Annually correct answer D) Annually
If a portable tank is self-expanding, fire fighters may need to hold on to _______
while the tank is being filled.
A) the frame
B) the check rope
C) the distributor
D) the collar correct answer D) the collar
In a well-designed water distribution system, which type of pattern do the water
mains follow?
A) Dead-end
Questions with Accurate Answers
A lake or stream is an example of a:
A) municipal water system.
B) static water source.
C) dry hydrant.
D) water shuttle. correct answer B) static water source.
According to NFPA Standard 24, what is the minimum distance between the
center of a fire hydrant hose outlet and the finished grade of the ground around
the hydrant?
A) Three feet
B) Thirty inches
C) Two feet
D) Eighteen inches correct answer D) Eighteen inches
After removing caps from a fire department connection, a fire fighter should:
A) connect the hose to the coupling.
B) visually inspect the interior to ensure there are no obstructions.
C) open the valves to back flush the connection.
D) pull the hose from the engine. correct answer B) visually inspect the interior to
ensure there are no obstructions.
,At the scene of a fire, a pump operator uses the difference between two types of
pressure to determine how many more attack lines or appliances could be
operated from the available water supply. What are these two types of pressure?
A) Flow and dynamic
B) Dynamic and static
C) Static and residual
D) Residual and flow correct answer C) Static and residual
Friction loss is affected by three factors. What is one of those?
A) Incident elevation
B) Hose diameter
C) Atmospheric pressure
D) Nozzle type correct answer B) Hose diameter
How close must a fire engine be to a static water source in order to be able to
draft directly from it?
A) There is no physical limit.
B) Within two hundred and fifty feet
C) Within fifty feet
D) Within twenty feet correct answer D) Within twenty feet
How many gallons of water do fire department tankers usually carry?
A) 1000 or less
B) 1000 to 3500
C) 3500 to 6000
, D) 6000 to 9000 correct answer B) 1000 to 3500
How should a hydrant be opened to prevent a water surge (hammer), if possible?
A) Surge can't be prevented.
B) Connect hose to the engine intake prior to opening.
C) Quickly
D) Slowly correct answer D) Slowly
Hydrants should be checked periodically. What is the minimum acceptable
interval between such checks?
A) Every five years
B) Triannually
C) Biannually
D) Annually correct answer D) Annually
If a portable tank is self-expanding, fire fighters may need to hold on to _______
while the tank is being filled.
A) the frame
B) the check rope
C) the distributor
D) the collar correct answer D) the collar
In a well-designed water distribution system, which type of pattern do the water
mains follow?
A) Dead-end
