TFM10 NFPA 24 ACTUAL EXAM EVALUATION QUESTION
WITH ANSWERS 2025/2026 GRADED A+
Ahj - an organization, office, or individual responsible for enforcing the requirements of a
code or stnadard or for approving equipment, materials, an installation or a procedure
Appurtenance - an accessory or attachment that enables the private fire service main to
perform its intended function
Automatic drain valve (automatic drip or ball drip) - a device intended to remove water
using gravity from piping or valve cavities which is required to be empty when the
system is not discharging water
Control valve (shutoff valve) - a valve controlling flow to water based fire protection
systems and devices
Corrosion-resistant piping - piping that has the property of being able to withstand
deterioration of its surface or its properties when exposed to its environment
Corrosion-retarding material - a lining or coating material that when applied to piping
that when applied to piping or appurtenances has the property of reducing or slowing
the deterioration of the objects surface or properties when exposed to its environment
Fire department connection - a connection through which the fire department can pump
supplemental water into the sprinkler system, standpipe, or other water based fire
protection systems thereby supplementing exsisting water supplies
Fire pump - a pump that is a provider of liquid flow and pressure dedicated to fire
protection
Hose house - an enclosure located over or adjacent to a hydrant or other water supply
designed to contain the neccessary hose nozzles, hose wrenches, gaskets, and
spanners to be used in fire fighting in conjunction with and to provide aid to the local fire
department
Hydrant butt - the hose connection outlet of a hydrant
Hydraulically calculated water demand flow rate - the water flow rate for a system or
hose stream that has been calculated using accepted engineering practices
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 exist at a given point under normal distribution
system conditions measured at the residual hydrant with no hydrants flowing
, Pressure-regulating device - a device designed for the purpose of reducing, regulating
controlling, or restricting water pressure. Example includes pressure reducing valve,
pressure control valves, and pressure-restricting devices.
Private fire service main - private fire service main, as used in this standard, is that pipe
and its appurtenances on private property (1) between a source of water and the base
of the system riser for water-based fire protection systems, (2) between a source of
water and inlets to foam-making systems, (3) between a source of water and the base
elbow of private hydrants or monitor nozzles, and (4) used as fire pump suction and
discharge piping, (5) beginning at the inlet side of the check valve on a gravity or
pressure tank
Pumper outlet - the hydrant outlet intended for use by fire departments for taking supply
from the hydrant for pumpers
Rated capacity - the flow either measured or calculated that is available from a hydrant
at the designated residual pressure (rated pressure)
System working pressure - the maximum anticipated static (nonflowing) or flowing
pressure applied to sprinkler system components exclusive of surge pressures and
exclusive of pressure from the fire department connection
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 attached appurtenances
consisting of subjecting the piping to an increased internal pressure for a specified
period of duration to verify system integrity and leak rates
Check valve - a valve that allows flow in one direction only
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.
Hydrant - an exterior valved connection to a water supply system that provides hose
connections
Plans - working plans shall be submitted for approval to the authority having jurisdiction
before any equipment is installed or remodeled
WITH ANSWERS 2025/2026 GRADED A+
Ahj - an organization, office, or individual responsible for enforcing the requirements of a
code or stnadard or for approving equipment, materials, an installation or a procedure
Appurtenance - an accessory or attachment that enables the private fire service main to
perform its intended function
Automatic drain valve (automatic drip or ball drip) - a device intended to remove water
using gravity from piping or valve cavities which is required to be empty when the
system is not discharging water
Control valve (shutoff valve) - a valve controlling flow to water based fire protection
systems and devices
Corrosion-resistant piping - piping that has the property of being able to withstand
deterioration of its surface or its properties when exposed to its environment
Corrosion-retarding material - a lining or coating material that when applied to piping
that when applied to piping or appurtenances has the property of reducing or slowing
the deterioration of the objects surface or properties when exposed to its environment
Fire department connection - a connection through which the fire department can pump
supplemental water into the sprinkler system, standpipe, or other water based fire
protection systems thereby supplementing exsisting water supplies
Fire pump - a pump that is a provider of liquid flow and pressure dedicated to fire
protection
Hose house - an enclosure located over or adjacent to a hydrant or other water supply
designed to contain the neccessary hose nozzles, hose wrenches, gaskets, and
spanners to be used in fire fighting in conjunction with and to provide aid to the local fire
department
Hydrant butt - the hose connection outlet of a hydrant
Hydraulically calculated water demand flow rate - the water flow rate for a system or
hose stream that has been calculated using accepted engineering practices
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 exist at a given point under normal distribution
system conditions measured at the residual hydrant with no hydrants flowing
, Pressure-regulating device - a device designed for the purpose of reducing, regulating
controlling, or restricting water pressure. Example includes pressure reducing valve,
pressure control valves, and pressure-restricting devices.
Private fire service main - private fire service main, as used in this standard, is that pipe
and its appurtenances on private property (1) between a source of water and the base
of the system riser for water-based fire protection systems, (2) between a source of
water and inlets to foam-making systems, (3) between a source of water and the base
elbow of private hydrants or monitor nozzles, and (4) used as fire pump suction and
discharge piping, (5) beginning at the inlet side of the check valve on a gravity or
pressure tank
Pumper outlet - the hydrant outlet intended for use by fire departments for taking supply
from the hydrant for pumpers
Rated capacity - the flow either measured or calculated that is available from a hydrant
at the designated residual pressure (rated pressure)
System working pressure - the maximum anticipated static (nonflowing) or flowing
pressure applied to sprinkler system components exclusive of surge pressures and
exclusive of pressure from the fire department connection
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 attached appurtenances
consisting of subjecting the piping to an increased internal pressure for a specified
period of duration to verify system integrity and leak rates
Check valve - a valve that allows flow in one direction only
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.
Hydrant - an exterior valved connection to a water supply system that provides hose
connections
Plans - working plans shall be submitted for approval to the authority having jurisdiction
before any equipment is installed or remodeled
