FPA 24 TEST (TFM10)
N
2025-2026 | Questions &
Correct Answers | Private Fire
Service Mains | Pass
Guaranteed - A+ Graded
## **PART A: MULTIPLE CHOICE (Q1–40)**
* *Q1 (Scope & Application):** This standard shall apply to ______ intended to carry water for
fire service mains.
A. Public water utility mains only
B. Private fire service mains and their appurtenances
C. Dry fire hydrants used for drafting
D. Aboveground sprinkler piping only
* *[CORRECT]** B
*Rationale: NFPA 24 Section 1.1 establishes that the standard applies to private fire service
mains and their appurtenances from the point of connection to the building. Distractor A is
incorrect because public utility mains fall under AWWA standards; C is incorrect because the
2022 edition explicitly excludes dry hydrants used for drafting from scope ; D is incorrect
because aboveground piping is governed by NFPA 13.*
---
* *Q2 (Working Plans):** Working plans shall be submitted for approval to the ______ before any
equipment is installed or remodeled.
A. Building owner
B. Authority Having Jurisdiction (AHJ)
C. Fire insurance underwriter
D. Municipal water department
**[CORRECT]** B
,* Rationale: NFPA 24 Section 4.2 requires all working plans to be submitted to the AHJ for
approval prior to installation or remodeling. Distractor A is incorrect because while the owner
may review plans, only the AHJ has statutory approval authority; C and D are incorrect because
neither has primary code enforcement authority under NFPA 24.*
---
* *Q3 (Pressure-Regulating Devices):** ______ shall not be used in private fire service mains.
A. Gate valves
B. Pressure-regulating devices
C. Check valves
D. Post indicator valves
* *[CORRECT]** B
*Rationale: NFPA 24 Section 5.3 prohibits pressure-regulating devices in fire service mains
because they can reduce pressure below that required for sprinkler system operation during a
fire. Distractor A is incorrect because gate valves are permitted as control valves; C is incorrect
because check valves are required when multiple water supplies exist; D is incorrect because
PIVs are standard control valve assemblies.*
---
* *Q4 (FDC Control Valves):** ______ shall not be installed in the piping from the fire department
connection to the fire service main.
A. Check valves
B. Control valves
C. Drain valves
D. Inspector's test connections
* *[CORRECT]** B
*Rationale: NFPA 24 Section 5.4.1 prohibits control valves in the piping between the FDC and
the fire service main to ensure uninterrupted pumper-supplied water during emergencies.
Distractor A is incorrect because check valves are permitted and often required to prevent
backflow; C is incorrect because drain valves may be installed for maintenance; D is incorrect
because inspector's test connections are aboveground components.*
---
* *Q5 (FDC Downstream Valves):** ______ shall be permitted in the system downstream of the
fire department connection.
A. Pressure gauges only
B. Control valves
C. Pressure-regulating devices
D. Flow switches
, * *[CORRECT]** B
*Rationale: NFPA 24 Section 5.4.2 permits control valves downstream of the FDC to allow
isolation of building systems while maintaining FDC access. Distractor C is incorrect because
pressure-regulating devices remain prohibited throughout the fire main; A and D are incorrect
because while gauges and flow switches may be present, they are not the specific subject of
this section.*
---
* *Q6 (Multiple Water Supplies):** When more than one water supply exists, a ______ shall be
installed in each connection.
A. Gate valve
B. Butterfly valve
C. Check valve
D. Pressure-relief valve
* *[CORRECT]** C
*Rationale: NFPA 24 Section 5.5 requires a check valve in each supply connection to prevent
backflow between sources and maintain system integrity. Distractor A is incorrect because gate
valves alone do not prevent backflow; B is incorrect for the same reason; D is incorrect because
pressure-relief valves serve a different function.*
---
* *Q7 (Check Valve Control Valves):** All check valves shall have a ______ installed upstream
and downstream of the check valve.
A. Pressure gauge
B. Control valve
C. Drain valve
D. Flow meter
* *[CORRECT]** B
*Rationale: NFPA 24 Section 5.5.1 requires control valves on both sides of check valves to allow
isolation for maintenance, testing, and repair without shutting down the entire system. Distractor
A is incorrect because pressure gauges are recommended but not required by this section; C is
incorrect because drain valves serve different maintenance purposes; D is incorrect because
flow meters are not mandated.*
---
* *Q8 (PIV Distance from Building):** A post indicator valve shall be installed not less than
______ from the building.
A. 20 ft (6.1 m)
N
2025-2026 | Questions &
Correct Answers | Private Fire
Service Mains | Pass
Guaranteed - A+ Graded
## **PART A: MULTIPLE CHOICE (Q1–40)**
* *Q1 (Scope & Application):** This standard shall apply to ______ intended to carry water for
fire service mains.
A. Public water utility mains only
B. Private fire service mains and their appurtenances
C. Dry fire hydrants used for drafting
D. Aboveground sprinkler piping only
* *[CORRECT]** B
*Rationale: NFPA 24 Section 1.1 establishes that the standard applies to private fire service
mains and their appurtenances from the point of connection to the building. Distractor A is
incorrect because public utility mains fall under AWWA standards; C is incorrect because the
2022 edition explicitly excludes dry hydrants used for drafting from scope ; D is incorrect
because aboveground piping is governed by NFPA 13.*
---
* *Q2 (Working Plans):** Working plans shall be submitted for approval to the ______ before any
equipment is installed or remodeled.
A. Building owner
B. Authority Having Jurisdiction (AHJ)
C. Fire insurance underwriter
D. Municipal water department
**[CORRECT]** B
,* Rationale: NFPA 24 Section 4.2 requires all working plans to be submitted to the AHJ for
approval prior to installation or remodeling. Distractor A is incorrect because while the owner
may review plans, only the AHJ has statutory approval authority; C and D are incorrect because
neither has primary code enforcement authority under NFPA 24.*
---
* *Q3 (Pressure-Regulating Devices):** ______ shall not be used in private fire service mains.
A. Gate valves
B. Pressure-regulating devices
C. Check valves
D. Post indicator valves
* *[CORRECT]** B
*Rationale: NFPA 24 Section 5.3 prohibits pressure-regulating devices in fire service mains
because they can reduce pressure below that required for sprinkler system operation during a
fire. Distractor A is incorrect because gate valves are permitted as control valves; C is incorrect
because check valves are required when multiple water supplies exist; D is incorrect because
PIVs are standard control valve assemblies.*
---
* *Q4 (FDC Control Valves):** ______ shall not be installed in the piping from the fire department
connection to the fire service main.
A. Check valves
B. Control valves
C. Drain valves
D. Inspector's test connections
* *[CORRECT]** B
*Rationale: NFPA 24 Section 5.4.1 prohibits control valves in the piping between the FDC and
the fire service main to ensure uninterrupted pumper-supplied water during emergencies.
Distractor A is incorrect because check valves are permitted and often required to prevent
backflow; C is incorrect because drain valves may be installed for maintenance; D is incorrect
because inspector's test connections are aboveground components.*
---
* *Q5 (FDC Downstream Valves):** ______ shall be permitted in the system downstream of the
fire department connection.
A. Pressure gauges only
B. Control valves
C. Pressure-regulating devices
D. Flow switches
, * *[CORRECT]** B
*Rationale: NFPA 24 Section 5.4.2 permits control valves downstream of the FDC to allow
isolation of building systems while maintaining FDC access. Distractor C is incorrect because
pressure-regulating devices remain prohibited throughout the fire main; A and D are incorrect
because while gauges and flow switches may be present, they are not the specific subject of
this section.*
---
* *Q6 (Multiple Water Supplies):** When more than one water supply exists, a ______ shall be
installed in each connection.
A. Gate valve
B. Butterfly valve
C. Check valve
D. Pressure-relief valve
* *[CORRECT]** C
*Rationale: NFPA 24 Section 5.5 requires a check valve in each supply connection to prevent
backflow between sources and maintain system integrity. Distractor A is incorrect because gate
valves alone do not prevent backflow; B is incorrect for the same reason; D is incorrect because
pressure-relief valves serve a different function.*
---
* *Q7 (Check Valve Control Valves):** All check valves shall have a ______ installed upstream
and downstream of the check valve.
A. Pressure gauge
B. Control valve
C. Drain valve
D. Flow meter
* *[CORRECT]** B
*Rationale: NFPA 24 Section 5.5.1 requires control valves on both sides of check valves to allow
isolation for maintenance, testing, and repair without shutting down the entire system. Distractor
A is incorrect because pressure gauges are recommended but not required by this section; C is
incorrect because drain valves serve different maintenance purposes; D is incorrect because
flow meters are not mandated.*
---
* *Q8 (PIV Distance from Building):** A post indicator valve shall be installed not less than
______ from the building.
A. 20 ft (6.1 m)
