NFPA 24 Fire Service Mains Review Test
ACTUAL QUESTIONS AND CORRECT
ANSWERS
Authority having jurisdiction - CORRECT 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 - CORRECT 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 - CORRECT 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 - CORRECT ANSWERS✅✅Shall be done by fully
experienced and responsible people.
Inspection, testing, and maintenance - CORRECT 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 - CORRECT ANSWERS✅✅Shall be set so that the top of the post is
above the final grade.
Indicating valves - CORRECT ANSWERS✅✅Shall not close in less than 10 seconds when
operated at maximum possible speed from the fully open position.
Listed indicating valve - CORRECT ANSWERS✅✅At least one shall be installed in each
source of water supply.
Definition of 'Shall' - CORRECT ANSWERS✅✅Indicates a mandatory requirement.
, Large private fire service main systems - CORRECT ANSWERS✅✅Shall have control
valves installed at appropriate points in order to permit sectionalizing the system.
Identification signs - CORRECT ANSWERS✅✅Shall be provided at each valve to indicate
its function and what it controls.
Hydrants location - CORRECT 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 - CORRECT ANSWERS✅✅The hydrant cannot
be placed any closer to the wall than the depth of the buried portion of the hydrant.
Definition of 'Should' - CORRECT ANSWERS✅✅A recommendation or that which is
advised but is not required.
Hydrants base support - CORRECT ANSWERS✅✅Hydrants shall be set on flat stones or
concrete slab blocks.
Clean washed stone around hydrants - CORRECT ANSWERS✅✅Shall be placed around
the base of the hydrant to ensure proper drainage.
Hose outlet center height - CORRECT ANSWERS✅✅The center of a hose outlet shall be at
least 24 inches above final grade, and where located in a hose house, the center shall be at
least 18 inches above the finished floor.
Hydrants fastening - CORRECT ANSWERS✅✅Shall be fastened to piping and anchored in
accordance with the requirements of NFPA 24.
Definition of 'Standard' - CORRECT ANSWERS✅✅A mandatory requirement. A
document, the main text of which contains only mandatory provisions using the word 'shall'
to indicate requirements.
Pipe working pressure - CORRECT ANSWERS✅✅Pipe used in private fire service
assemblies shall be designed to withstand a working pressure of not less than 150 psi.
ACTUAL QUESTIONS AND CORRECT
ANSWERS
Authority having jurisdiction - CORRECT 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 - CORRECT 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 - CORRECT 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 - CORRECT ANSWERS✅✅Shall be done by fully
experienced and responsible people.
Inspection, testing, and maintenance - CORRECT 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 - CORRECT ANSWERS✅✅Shall be set so that the top of the post is
above the final grade.
Indicating valves - CORRECT ANSWERS✅✅Shall not close in less than 10 seconds when
operated at maximum possible speed from the fully open position.
Listed indicating valve - CORRECT ANSWERS✅✅At least one shall be installed in each
source of water supply.
Definition of 'Shall' - CORRECT ANSWERS✅✅Indicates a mandatory requirement.
, Large private fire service main systems - CORRECT ANSWERS✅✅Shall have control
valves installed at appropriate points in order to permit sectionalizing the system.
Identification signs - CORRECT ANSWERS✅✅Shall be provided at each valve to indicate
its function and what it controls.
Hydrants location - CORRECT 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 - CORRECT ANSWERS✅✅The hydrant cannot
be placed any closer to the wall than the depth of the buried portion of the hydrant.
Definition of 'Should' - CORRECT ANSWERS✅✅A recommendation or that which is
advised but is not required.
Hydrants base support - CORRECT ANSWERS✅✅Hydrants shall be set on flat stones or
concrete slab blocks.
Clean washed stone around hydrants - CORRECT ANSWERS✅✅Shall be placed around
the base of the hydrant to ensure proper drainage.
Hose outlet center height - CORRECT ANSWERS✅✅The center of a hose outlet shall be at
least 24 inches above final grade, and where located in a hose house, the center shall be at
least 18 inches above the finished floor.
Hydrants fastening - CORRECT ANSWERS✅✅Shall be fastened to piping and anchored in
accordance with the requirements of NFPA 24.
Definition of 'Standard' - CORRECT ANSWERS✅✅A mandatory requirement. A
document, the main text of which contains only mandatory provisions using the word 'shall'
to indicate requirements.
Pipe working pressure - CORRECT ANSWERS✅✅Pipe used in private fire service
assemblies shall be designed to withstand a working pressure of not less than 150 psi.
