NFPA 24 Fire Service Mains Review Test Questions Solved Correctly Graded A+
Authority having jurisdiction - Answers The organization, office, or individual responsible for enforcing
the requirements of a code or standard, or for approving equipment, materials, an installation, or a
procedure.
Private fire service main - Answers That pipe and its appurtenances on private property; which are
located between a source of water and the base of the system riser for water-based fire protection
systems.
Working plans - Answers Plans that shall be submitted for approval to the authority having jurisdiction
before any equipment is installed or remodeled.
Installation work on fire service piping - Answers Shall be done by fully experienced and responsible
people.
Inspection, testing, and maintenance - Answers A private fire service main and its appurtenances
installed in accordance with this standard shall be properly inspected, tested, and maintained in
accordance with NFPA 25.
Post indicator valves - Answers Shall be set so that the top of the post is above the final grade.
Indicating valves - Answers Shall not close in less than 10 seconds when operated at maximum possible
speed from the fully open position.
Listed indicating valve - Answers At least one shall be installed in each source of water supply.
Definition of 'Shall' - Answers Indicates a mandatory requirement.
Large private fire service main systems - Answers Shall have control valves installed at appropriate
points in order to permit sectionalizing the system.
Identification signs - Answers Shall be provided at each valve to indicate its function and what it
controls.
Hydrants location - Answers Under normal conditions, hydrants shall be located not less than 40 feet
from the buildings to be protected.
Precaution for hydrant near retaining wall - Answers The hydrant cannot be placed any closer to the wall
than the depth of the buried portion of the hydrant.
Definition of 'Should' - Answers A recommendation or that which is advised but is not required.
Hydrants base support - Answers Hydrants shall be set on flat stones or concrete slab blocks.
Clean washed stone around hydrants - Answers Shall be placed around the base of the hydrant to
ensure proper drainage.
Authority having jurisdiction - Answers The organization, office, or individual responsible for enforcing
the requirements of a code or standard, or for approving equipment, materials, an installation, or a
procedure.
Private fire service main - Answers That pipe and its appurtenances on private property; which are
located between a source of water and the base of the system riser for water-based fire protection
systems.
Working plans - Answers Plans that shall be submitted for approval to the authority having jurisdiction
before any equipment is installed or remodeled.
Installation work on fire service piping - Answers Shall be done by fully experienced and responsible
people.
Inspection, testing, and maintenance - Answers A private fire service main and its appurtenances
installed in accordance with this standard shall be properly inspected, tested, and maintained in
accordance with NFPA 25.
Post indicator valves - Answers Shall be set so that the top of the post is above the final grade.
Indicating valves - Answers Shall not close in less than 10 seconds when operated at maximum possible
speed from the fully open position.
Listed indicating valve - Answers At least one shall be installed in each source of water supply.
Definition of 'Shall' - Answers Indicates a mandatory requirement.
Large private fire service main systems - Answers Shall have control valves installed at appropriate
points in order to permit sectionalizing the system.
Identification signs - Answers Shall be provided at each valve to indicate its function and what it
controls.
Hydrants location - Answers Under normal conditions, hydrants shall be located not less than 40 feet
from the buildings to be protected.
Precaution for hydrant near retaining wall - Answers The hydrant cannot be placed any closer to the wall
than the depth of the buried portion of the hydrant.
Definition of 'Should' - Answers A recommendation or that which is advised but is not required.
Hydrants base support - Answers Hydrants shall be set on flat stones or concrete slab blocks.
Clean washed stone around hydrants - Answers Shall be placed around the base of the hydrant to
ensure proper drainage.
