NFPA 24 TFM10 CERTIFICATION TEST 2026
QUESTIONS WITH SOLUTIONS GRADED A+
⩥ The standard shall apply to combined service mains intended to
carry water for fire service and other uses . Answer:
⩥ This standard shall NOT apply to the following situations . Answer:
-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 . Answer:
⩥ The standard shall not apply to underground mains serving
sprinkler systems designed and installed in accordance with NFPA
13D . Answer:
⩥ 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. .
Answer:
,⩥ 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.
. Answer:
⩥ Residual Pressure . Answer: 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 . Answer: The pressure that exists at a given point
under normal distribution system conditions measured at the residual
hydrant with no hydrants flowing.
⩥ Check Valve . Answer: A valve that allows flow in one direction but
prevents flow in the opposite direction.
⩥ Indicating Valve . Answer: 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.
⩥ Dry-Barrel Hydrant . Answer: Fire hydrant that has its operating
valve located at the base or foot of the hydrant rather than in the
barrel of the hydrant. When operating properly, there is no water in
the barrel of the hydrant when it is not in use. These hydrants are used
in areas where freezing may occur.
, ⩥ Flow Hydrant . Answer: The hydrant that is used for the flow and
flow measurement of water during a flow test.
⩥ Private Fire Hydrant . Answer: A valved connection on a water
supply system having one or more outlets that is used to supply hose
and fire department pumpers with water on private property.
⩥ Public Hydrant . Answer: A valved connection on a water supply
system having one or more outlets that is used to supply hose and fire
department pumpers with water.
⩥ Residual Hydrant . Answer: The hydrant that is used for measuring
static and residual pressures during a flow test
⩥ Wet-Barrel Hydrant . Answer: A hydrant used in areas that are not
susceptible to freezing. The barrel of the hydrant is normally filled
with water.
⩥ Private Fire Service Mains . Answer: Hydraulic calculations shall
show that the main is able to supply the total demand at the
appropriate pressure.
⩥ Mains Not Supplying Hydrants . Answer: For mains that do not
supply hydrants, pipe sizes less than 6 in nominal size shall be
permitted to be used subject to the following restrictions.
QUESTIONS WITH SOLUTIONS GRADED A+
⩥ The standard shall apply to combined service mains intended to
carry water for fire service and other uses . Answer:
⩥ This standard shall NOT apply to the following situations . Answer:
-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 . Answer:
⩥ The standard shall not apply to underground mains serving
sprinkler systems designed and installed in accordance with NFPA
13D . Answer:
⩥ 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. .
Answer:
,⩥ 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.
. Answer:
⩥ Residual Pressure . Answer: 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 . Answer: The pressure that exists at a given point
under normal distribution system conditions measured at the residual
hydrant with no hydrants flowing.
⩥ Check Valve . Answer: A valve that allows flow in one direction but
prevents flow in the opposite direction.
⩥ Indicating Valve . Answer: 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.
⩥ Dry-Barrel Hydrant . Answer: Fire hydrant that has its operating
valve located at the base or foot of the hydrant rather than in the
barrel of the hydrant. When operating properly, there is no water in
the barrel of the hydrant when it is not in use. These hydrants are used
in areas where freezing may occur.
, ⩥ Flow Hydrant . Answer: The hydrant that is used for the flow and
flow measurement of water during a flow test.
⩥ Private Fire Hydrant . Answer: A valved connection on a water
supply system having one or more outlets that is used to supply hose
and fire department pumpers with water on private property.
⩥ Public Hydrant . Answer: A valved connection on a water supply
system having one or more outlets that is used to supply hose and fire
department pumpers with water.
⩥ Residual Hydrant . Answer: The hydrant that is used for measuring
static and residual pressures during a flow test
⩥ Wet-Barrel Hydrant . Answer: A hydrant used in areas that are not
susceptible to freezing. The barrel of the hydrant is normally filled
with water.
⩥ Private Fire Service Mains . Answer: Hydraulic calculations shall
show that the main is able to supply the total demand at the
appropriate pressure.
⩥ Mains Not Supplying Hydrants . Answer: For mains that do not
supply hydrants, pipe sizes less than 6 in nominal size shall be
permitted to be used subject to the following restrictions.
