Exam Test Questions And Correct Answers
(Verified Answers) Plus Rationales 2025/2026
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1. What is the minimum working pressure required for a typical fire sprinkler
system?
A) 5 psi
B) 7 psi
C) 15 psi
D) 25 psi
The minimum working pressure for most fire sprinkler systems is 15 psi to ensure
adequate water flow and coverage.
2. Which standard is most commonly referenced for fire sprinkler system
installation?
A) NFPA 10
B) NFPA 13
C) NFPA 25
D) NFPA 13
,NFPA 13 is the Standard for the Installation of Sprinkler Systems, widely used for
designing and installing fire sprinkler systems.
3. How often should a wet pipe sprinkler system be inspected according to
NFPA standards?
A) Monthly
B) Annually
C) Quarterly
D) Every 5 years
Wet pipe systems should be inspected quarterly to check for corrosion, leaks,
and proper valve positions per NFPA 25 guidelines.
4. What type of sprinkler system is used where freezing temperatures are
expected?
A) Wet pipe system
B) Dry pipe system
C) Pre-action system
D) Dry pipe system
Dry pipe systems are used in environments subject to freezing because they keep
water out of the pipes until needed.
5. What is the maximum spacing allowed between sprinklers in a standard
light hazard occupancy?
,A) 12 feet
B) 15 feet
C) 20 feet
D) 15 feet
For light hazard occupancies, the maximum spacing between sprinklers is
typically 15 feet to provide effective coverage.
6. What color coding is commonly used to identify a fire sprinkler riser valve?
A) Blue
B) Yellow
C) Green
D) Red
Red is generally used to identify fire protection system valves, including
sprinkler riser valves, for quick identification.
7. What is the minimum distance a sprinkler head must be installed from the
ceiling?
A) 1 inch
B) 4 inches
C) 4 inches
D) 12 inches
Sprinkler heads must be installed a minimum of 4 inches below the ceiling to
ensure proper spray patterns and avoid interference.
, 8. Which component in a sprinkler system prevents backflow of contaminated
water?
A) Check valve
B) Relief valve
C) Backflow preventer
D) Pressure regulator
Backflow preventers stop water from flowing back into the potable water
supply, protecting it from contamination.
9. What is the main purpose of a pre-action sprinkler system?
A) Immediate water discharge
B) Prevent pipe freezing
C) Prevent accidental water discharge
D) Increase water pressure
Pre-action systems require a separate detection event before water fills the
pipes, reducing accidental discharges.
10.How is a deluge sprinkler system activated?
A) Automatically by heat
B) Manually by valve
C) By a separate detection system
D) By water pressure