NICET WATER-BASED SYSTEMS LAYOUT
LEVEL II PRACTICE EXAM QUESTIONS AND
CORRECT ANSWERS (VERIFIED ANSWERS)
PLUS RATIONALES 2026 Q&A | INSTANTS
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1. What is the primary purpose of a fire sprinkler system?
A. Decorate the building
B. Control and extinguish fires B
C. Provide drinking water
D. Increase building pressure
Rationale: The main function of fire sprinkler systems is to control
or suppress fires before they spread.
2. Which NFPA standard specifically covers the installation of
sprinkler systems?
A. NFPA 13 A
B. NFPA 72
C. NFPA 25
D. NFPA 101
Rationale: NFPA 13 provides requirements for the design and
installation of sprinkler systems.
3. What type of sprinkler system uses water only when a fire is
detected and heat activates the sprinkler head?
A. Wet-pipe
B. Dry-pipe
C. Deluge
, D. Pre-action D
Rationale: Pre-action systems hold water in the pipes only after a
fire detection system triggers the valves.
4. Which type of system is filled with water at all times?
A. Wet-pipe A
B. Dry-pipe
C. Deluge
D. Pre-action
Rationale: Wet-pipe systems maintain constant water pressure in
the piping for immediate response.
5. In pipe sizing calculations, which factor directly affects the water
flow to a sprinkler head?
A. Pipe material
B. Pipe diameter B
C. Sprinkler color
D. Ceiling height
Rationale: Pipe diameter determines the hydraulic flow capacity to
the sprinkler.
6. Minimum clearance from obstructions for standard spray
sprinklers is typically:
A. 6 inches A
B. 12 inches
C. 18 inches
D. 24 inches
Rationale: NFPA 13 specifies a minimum of 6 inches from
obstructions to allow proper water distribution.
7. The maximum spacing between standard sprinklers in a light
hazard occupancy is:
A. 10 ft
, B. 12 ft B
C. 15 ft
D. 20 ft
Rationale: NFPA 13 sets maximum spacing for light hazard areas
at 12 feet.
8. Which type of sprinkler head is commonly used for areas where
freezing is possible?
A. Wet-pipe
B. Dry-pipe B
C. Standard spray
D. Sidewall
Rationale: Dry-pipe systems prevent water from freezing in the
piping.
9. What is the purpose of a riser in a sprinkler system?
A. Increase water temperature
B. Provide structural support
C. Deliver water from main supply to branch lines C
D. Act as a valve
Rationale: Risers connect the main supply to horizontal
distribution piping.
10. The term “hydraulic design area” refers to:
A. The largest area a single sprinkler can cover A
B. Total building area
C. Area under fire department control
D. Parking lot
Rationale: Hydraulic calculations are based on the most
hydraulically demanding area in the system.
11. Which type of valve is used to isolate sections of a sprinkler
system?
LEVEL II PRACTICE EXAM QUESTIONS AND
CORRECT ANSWERS (VERIFIED ANSWERS)
PLUS RATIONALES 2026 Q&A | INSTANTS
DOWNLOAD
1. What is the primary purpose of a fire sprinkler system?
A. Decorate the building
B. Control and extinguish fires B
C. Provide drinking water
D. Increase building pressure
Rationale: The main function of fire sprinkler systems is to control
or suppress fires before they spread.
2. Which NFPA standard specifically covers the installation of
sprinkler systems?
A. NFPA 13 A
B. NFPA 72
C. NFPA 25
D. NFPA 101
Rationale: NFPA 13 provides requirements for the design and
installation of sprinkler systems.
3. What type of sprinkler system uses water only when a fire is
detected and heat activates the sprinkler head?
A. Wet-pipe
B. Dry-pipe
C. Deluge
, D. Pre-action D
Rationale: Pre-action systems hold water in the pipes only after a
fire detection system triggers the valves.
4. Which type of system is filled with water at all times?
A. Wet-pipe A
B. Dry-pipe
C. Deluge
D. Pre-action
Rationale: Wet-pipe systems maintain constant water pressure in
the piping for immediate response.
5. In pipe sizing calculations, which factor directly affects the water
flow to a sprinkler head?
A. Pipe material
B. Pipe diameter B
C. Sprinkler color
D. Ceiling height
Rationale: Pipe diameter determines the hydraulic flow capacity to
the sprinkler.
6. Minimum clearance from obstructions for standard spray
sprinklers is typically:
A. 6 inches A
B. 12 inches
C. 18 inches
D. 24 inches
Rationale: NFPA 13 specifies a minimum of 6 inches from
obstructions to allow proper water distribution.
7. The maximum spacing between standard sprinklers in a light
hazard occupancy is:
A. 10 ft
, B. 12 ft B
C. 15 ft
D. 20 ft
Rationale: NFPA 13 sets maximum spacing for light hazard areas
at 12 feet.
8. Which type of sprinkler head is commonly used for areas where
freezing is possible?
A. Wet-pipe
B. Dry-pipe B
C. Standard spray
D. Sidewall
Rationale: Dry-pipe systems prevent water from freezing in the
piping.
9. What is the purpose of a riser in a sprinkler system?
A. Increase water temperature
B. Provide structural support
C. Deliver water from main supply to branch lines C
D. Act as a valve
Rationale: Risers connect the main supply to horizontal
distribution piping.
10. The term “hydraulic design area” refers to:
A. The largest area a single sprinkler can cover A
B. Total building area
C. Area under fire department control
D. Parking lot
Rationale: Hydraulic calculations are based on the most
hydraulically demanding area in the system.
11. Which type of valve is used to isolate sections of a sprinkler
system?
