Exam Questions And Correct Answers
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1. Which NFPA standard governs the installation of sprinkler systems in
new buildings?
A. NFPA 10
B. NFPA 13
C. NFPA 72
D. NFPA 25
NFPA 13 is the standard for the installation of automatic fire
sprinkler systems.
2. What is the minimum working pressure required for most residential
sprinkler systems?
A. 15 psi
B. 20 psi
C. 7 psi
D. 10 psi
Residential sprinkler systems typically require a minimum of 7 psi to
ensure proper flow and coverage.
3. What type of sprinkler head is designed to provide quick response in
residential applications?
A. Standard Response
B. Quick Response
C. Intermediate Response
D. Deluge
Quick Response sprinkler heads have a smaller thermal element,
allowing them to activate faster in residential fires.
,4. The primary purpose of a dry-pipe sprinkler system is to:
A. Reduce water pressure
B. Prevent corrosion
C. Prevent water from freezing in the pipes
D. Increase flow rate
Dry-pipe systems are filled with air or nitrogen and only allow water
to enter when a sprinkler activates, preventing freezing in unheated
areas.
5. Which component is used to prevent backflow into a sprinkler system?
A. Check valve
B. Alarm valve
C. Backflow preventer
D. Flow switch
Backflow preventers protect potable water supplies from
contamination by preventing reverse flow.
6. How often must fire sprinkler systems be inspected under NFPA 25?
A. Monthly
B. Quarterly
C. Annually
D. Every five years
NFPA 25 requires annual inspection of sprinkler systems to ensure
proper operation and compliance.
7. What is the minimum spacing allowed between standard upright
sprinkler heads in an ordinary hazard area?
A. 6 feet
B. 15 feet
C. 20 feet
D. 12 feet
NFPA 13 specifies that upright sprinklers in ordinary hazard areas
should generally not exceed 15 feet apart.
8. The fusible link in a sprinkler head melts at a predetermined
temperature to:
A. Sound an alarm
B. Release water
C. Shut off the system
D. Activate the pump
, Fusible links are designed to melt at a specific temperature, releasing
the sprinkler to discharge water.
9. Which type of sprinkler system is always filled with water and provides
immediate water discharge?
A. Dry-pipe
B. Pre-action
C. Wet-pipe
D. Deluge
Wet-pipe systems are constantly filled with water, ensuring immediate
activation when a sprinkler opens.
10. A fire pump is required when:
A. The building is over 100 feet tall
B. The water supply is insufficient
C. System pressure and flow are inadequate
D. The system is pre-action
Fire pumps are installed to ensure the sprinkler system receives
adequate pressure and flow when the municipal supply is insufficient.
11. What is the main function of a deluge sprinkler system?
A. Provide minimal coverage
B. Activate one sprinkler at a time
C. Discharge water from all sprinklers simultaneously
D. Protect residential homes
Deluge systems are open sprinklers designed to discharge water
simultaneously over a hazard area.
12. In NFPA terminology, “ordinary hazard” refers to:
A. Residential homes
B. Areas with moderate combustibles
C. Storage warehouses only
D. Areas with flammable liquids
Ordinary hazard areas include offices, schools, and areas with
moderate fire loads, as defined by NFPA 13.
13. What is the primary purpose of a flow switch in a sprinkler
system?
A. Control pump operation
B. Activate alarms
C. Prevent freezing
D. Regulate pressure