TFM10 NFPA 24 UPDATED EXAM SCRIPT QUESTIONS AND
SOLUTIONS RATED A+
✔✔The standard shall NOT apply to underground fire mains serving sprinkler systems
designed and installed in accordance with NFPA 13R that are less than 4 in in nomimal
diameter - ✔✔
✔✔The standard shall not apply to underground mains serving sprinkler systems
designed and installed in accordance with NFPA 13D - ✔✔
✔✔The Purpose of this standard shall be to provide a reasonable degree of protection
for life and property from fire through installation requirements for private service main
systems based on sound engineering principles, test data, and field experience. - ✔✔
✔✔The provisions of this standard reflect a consensus for what is necessary to provide
an acceptable degree of protection from the hazards addressed in this standard at the
time the standard was issued. - ✔✔
✔✔Residual Pressure - ✔✔The pressure that exists in the distribution system,
measured at the residual hydrant at the time the flow readings are taken at the flow
hydrants.
✔✔Static Pressure - ✔✔The pressure that exists at a given point under normal
distribution system conditions measured at the residual hydrant with no hydrants
flowing.
✔✔Flow Test - ✔✔A test performed by the flow and measurement of water from one
hydrant and the static and residual pressures from an adjacent hydrant for the purpose
of determining the available water supply at that location.
✔✔Flushing Test - ✔✔A test of a piping system using high velocity flows to remove
debris from the piping system prior to it being placed in service
✔✔Hydrostatic Test - ✔✔A test of a closed piping system and its appurtenances
consisting of subjecting to an increased internal pressure for a specified duration to
verify system integrity and system leakage rates.
✔✔Check Valve - ✔✔A valve that allows flow in one direction but prevents flow in the
opposite direction.
✔✔Indicating Valve - ✔✔A valve that has components that show if the valve is open or
closed. Examples are outside screw and yoke (OS&Y) gate valves and underground
gate valves with indicator posts.
SOLUTIONS RATED A+
✔✔The standard shall NOT apply to underground fire mains serving sprinkler systems
designed and installed in accordance with NFPA 13R that are less than 4 in in nomimal
diameter - ✔✔
✔✔The standard shall not apply to underground mains serving sprinkler systems
designed and installed in accordance with NFPA 13D - ✔✔
✔✔The Purpose of this standard shall be to provide a reasonable degree of protection
for life and property from fire through installation requirements for private service main
systems based on sound engineering principles, test data, and field experience. - ✔✔
✔✔The provisions of this standard reflect a consensus for what is necessary to provide
an acceptable degree of protection from the hazards addressed in this standard at the
time the standard was issued. - ✔✔
✔✔Residual Pressure - ✔✔The pressure that exists in the distribution system,
measured at the residual hydrant at the time the flow readings are taken at the flow
hydrants.
✔✔Static Pressure - ✔✔The pressure that exists at a given point under normal
distribution system conditions measured at the residual hydrant with no hydrants
flowing.
✔✔Flow Test - ✔✔A test performed by the flow and measurement of water from one
hydrant and the static and residual pressures from an adjacent hydrant for the purpose
of determining the available water supply at that location.
✔✔Flushing Test - ✔✔A test of a piping system using high velocity flows to remove
debris from the piping system prior to it being placed in service
✔✔Hydrostatic Test - ✔✔A test of a closed piping system and its appurtenances
consisting of subjecting to an increased internal pressure for a specified duration to
verify system integrity and system leakage rates.
✔✔Check Valve - ✔✔A valve that allows flow in one direction but prevents flow in the
opposite direction.
✔✔Indicating Valve - ✔✔A valve that has components that show if the valve is open or
closed. Examples are outside screw and yoke (OS&Y) gate valves and underground
gate valves with indicator posts.
