**TFM10 NFPA 24 Exam Review 2026/2027 |
Private Fire Service Mains Practice Questions,
Answers & Detailed Explanations**
The Standard shall cover the minimum requirements for the installation of private
service mains and their appurtenances, which include the following
-Automatic Sprinkler Systems
-Open Sprinkler Systems
-Water Spray Fixed Systems
-Foam Systems
-Private Hydrants
-Monitor Nozzles or Standpipe Systems with reference to water supplies
-Hose Houses
The standard shall apply to combined service mains intended to carry water for fire
service and other uses
This standard shall NOT apply to the following situations
-Mains under the control of a water utility
-Mains providing fire protection and/or domestic water that are privately owned but are
operated as a water utility
, 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.
Private Fire Service Mains Practice Questions,
Answers & Detailed Explanations**
The Standard shall cover the minimum requirements for the installation of private
service mains and their appurtenances, which include the following
-Automatic Sprinkler Systems
-Open Sprinkler Systems
-Water Spray Fixed Systems
-Foam Systems
-Private Hydrants
-Monitor Nozzles or Standpipe Systems with reference to water supplies
-Hose Houses
The standard shall apply to combined service mains intended to carry water for fire
service and other uses
This standard shall NOT apply to the following situations
-Mains under the control of a water utility
-Mains providing fire protection and/or domestic water that are privately owned but are
operated as a water utility
, 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.
