C10 Exam #1 Question with verified answers
By what action does water work to extinguish fire? - √√By cooling the fuel so that
combustion cannot be sustained.
Which statement about fire hydrants is most accurate? - √√Fire hydrants produce
pressurized water provided by a municipal or private water system.
What are the three major components of a municipal water system? - √√Water
source, water treatment facility, and distribution system.
What is the typical pressure range for water flowing through municipal water
mains? - √√20-80 psi.
What type of system does Helmsville City use? - √√Gravity-feed system.
Which part of a water distribution system carries large quantities of water to
specific parts of a city or town? - √√Trunk line.
Which part of a municipal water system delivers water to residential homes along
individual streets? - √√Distributor pipe.
What are the three types of water mains found in underground distribution
systems? - √√Primary feeders, secondary feeders, and distributors.
What is a common cause of decreased water volume in older distribution
systems? - √√Older piping may be corroded or partially filled with sediment.
, What is an advantage to water distribution systems that are laid out in a grid
pattern? - √√A grid arrangement allows for water flow to be diverted should there
be a break in the main.
What is a dead-end water main? - √√A water main that is supplied from only one
direction.
What can you do to mitigate a frozen and busted main water line in a residential
basement? - √√Locate the water shut-off valve for the residence, close the valve
and contact the water department.
Which part of a fire hydrant is connected to the underground water distribution
system? - √√Barrel.
Which part of a fire hose is typically connected to a hydrant? - √√The female
coupling, which features a swivel that turns to secure the coupling around male
threads.
Where is the main control valve located on a dry barrel hydrant? - √√Base of the
barrel, just below the frost line.
Which part of a dry barrel hydrant is turned to charge the hydrant with water? -
√√Stem nut
Which statement is true of dry barrel hydrants? - √√When the hydrant is fully
closed, the drain is fully open.
By what action does water work to extinguish fire? - √√By cooling the fuel so that
combustion cannot be sustained.
Which statement about fire hydrants is most accurate? - √√Fire hydrants produce
pressurized water provided by a municipal or private water system.
What are the three major components of a municipal water system? - √√Water
source, water treatment facility, and distribution system.
What is the typical pressure range for water flowing through municipal water
mains? - √√20-80 psi.
What type of system does Helmsville City use? - √√Gravity-feed system.
Which part of a water distribution system carries large quantities of water to
specific parts of a city or town? - √√Trunk line.
Which part of a municipal water system delivers water to residential homes along
individual streets? - √√Distributor pipe.
What are the three types of water mains found in underground distribution
systems? - √√Primary feeders, secondary feeders, and distributors.
What is a common cause of decreased water volume in older distribution
systems? - √√Older piping may be corroded or partially filled with sediment.
, What is an advantage to water distribution systems that are laid out in a grid
pattern? - √√A grid arrangement allows for water flow to be diverted should there
be a break in the main.
What is a dead-end water main? - √√A water main that is supplied from only one
direction.
What can you do to mitigate a frozen and busted main water line in a residential
basement? - √√Locate the water shut-off valve for the residence, close the valve
and contact the water department.
Which part of a fire hydrant is connected to the underground water distribution
system? - √√Barrel.
Which part of a fire hose is typically connected to a hydrant? - √√The female
coupling, which features a swivel that turns to secure the coupling around male
threads.
Where is the main control valve located on a dry barrel hydrant? - √√Base of the
barrel, just below the frost line.
Which part of a dry barrel hydrant is turned to charge the hydrant with water? -
√√Stem nut
Which statement is true of dry barrel hydrants? - √√When the hydrant is fully
closed, the drain is fully open.
