HAWAII FIRE PROTECTION
CONTRACTOR EXAM Questions And
Correct Answers (Verified Answers) Plus
Rationale2026 Q&A| Instant Download
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1. Which NFPA standard primarily governs the installation of automatic
sprinkler systems?
A. NFPA 20
B. NFPA 14
C. NFPA 13
D. NFPA 25
Answer: NFPA 13
Rationale: NFPA 13 is the foundational standard for design and installation
of automatic sprinkler systems.
2. What is the minimum size underground fire service main permitted
unless hydraulic calculations require larger?
A. 4 inches
B. 6 inches
C. 2 inches
D. 8 inches
Answer: 6 inches
,Rationale: NFPA 24 requires a minimum 6-inch underground fire main to
ensure reliable flow.
3. A fire pump supplying a sprinkler system must meet which NFPA
standard?
A. NFPA 13
B. NFPA 14
C. NFPA 25
D. NFPA 20
Answer: NFPA 20
Rationale: NFPA 20 governs installation and performance requirements for
fire pumps.
4. The main purpose of a post-indicator valve (PIV) is to:
A. Measure system pressure
B. Test system flow
C. Indicate and control the open/closed position of the underground main
D. Detect fire
Answer: Indicate and control the open/closed position of the underground
main
Rationale: PIVs provide visible indication of valve status for fire protection
systems.
5. Automatic sprinkler heads must be replaced when:
A. Slight discoloration is visible
B. Every 10 years automatically
C. They are painted or physically damaged
D. When any corrosion exists
,Answer: They are painted or physically damaged
Rationale: NFPA 25 requires replacement of painted or damaged heads
because it impairs operation.
6. What type of sprinkler system uses pressurized air or nitrogen in the
piping?
A. Wet pipe
B. Pre-action
C. Dry pipe
D. Deluge
Answer: Dry pipe
Rationale: Dry pipe systems use compressed gas to prevent water from
sitting in pipes in freezing areas.
7. Standpipe systems are governed by which NFPA standard?
A. NFPA 13
B. NFPA 14
C. NFPA 20
D. NFPA 72
Answer: NFPA 14
Rationale: NFPA 14 covers installation of standpipe and hose systems.
8. The test pressure required for hydrostatic testing of fire sprinkler
systems is:
A. Operating pressure only
B. 100 psi
C. 200 psi or 50 psi above system working pressure
D. 150 psi
, Answer: 200 psi or 50 psi above system working pressure
Rationale: NFPA 13 requires 200 psi or 50 psi above maximum pressure,
whichever is greater.
9. A deluge system is typically used in:
A. Offices
B. Hospitals
C. High-hazard industrial areas
D. Residential dwellings
Answer: High-hazard industrial areas
Rationale: Deluge systems deliver large volumes of water rapidly for high-
hazard areas.
10. Fire alarm interfaces and supervisory signals follow which NFPA
standard?
A. NFPA 25
B. NFPA 13
C. NFPA 72
D. NFPA 14
Answer: NFPA 72
Rationale: NFPA 72 governs fire alarm and signaling systems.
11. What is the minimum clearance required below a sprinkler deflector in
storage occupancies?
A. 12 inches
B. 18 inches
C. 24 inches
D. 36 inches
CONTRACTOR EXAM Questions And
Correct Answers (Verified Answers) Plus
Rationale2026 Q&A| Instant Download
1. Which NFPA standard primarily governs the installation of automatic
sprinkler systems?
A. NFPA 20
B. NFPA 14
C. NFPA 13
D. NFPA 25
Answer: NFPA 13
Rationale: NFPA 13 is the foundational standard for design and installation
of automatic sprinkler systems.
2. What is the minimum size underground fire service main permitted
unless hydraulic calculations require larger?
A. 4 inches
B. 6 inches
C. 2 inches
D. 8 inches
Answer: 6 inches
,Rationale: NFPA 24 requires a minimum 6-inch underground fire main to
ensure reliable flow.
3. A fire pump supplying a sprinkler system must meet which NFPA
standard?
A. NFPA 13
B. NFPA 14
C. NFPA 25
D. NFPA 20
Answer: NFPA 20
Rationale: NFPA 20 governs installation and performance requirements for
fire pumps.
4. The main purpose of a post-indicator valve (PIV) is to:
A. Measure system pressure
B. Test system flow
C. Indicate and control the open/closed position of the underground main
D. Detect fire
Answer: Indicate and control the open/closed position of the underground
main
Rationale: PIVs provide visible indication of valve status for fire protection
systems.
5. Automatic sprinkler heads must be replaced when:
A. Slight discoloration is visible
B. Every 10 years automatically
C. They are painted or physically damaged
D. When any corrosion exists
,Answer: They are painted or physically damaged
Rationale: NFPA 25 requires replacement of painted or damaged heads
because it impairs operation.
6. What type of sprinkler system uses pressurized air or nitrogen in the
piping?
A. Wet pipe
B. Pre-action
C. Dry pipe
D. Deluge
Answer: Dry pipe
Rationale: Dry pipe systems use compressed gas to prevent water from
sitting in pipes in freezing areas.
7. Standpipe systems are governed by which NFPA standard?
A. NFPA 13
B. NFPA 14
C. NFPA 20
D. NFPA 72
Answer: NFPA 14
Rationale: NFPA 14 covers installation of standpipe and hose systems.
8. The test pressure required for hydrostatic testing of fire sprinkler
systems is:
A. Operating pressure only
B. 100 psi
C. 200 psi or 50 psi above system working pressure
D. 150 psi
, Answer: 200 psi or 50 psi above system working pressure
Rationale: NFPA 13 requires 200 psi or 50 psi above maximum pressure,
whichever is greater.
9. A deluge system is typically used in:
A. Offices
B. Hospitals
C. High-hazard industrial areas
D. Residential dwellings
Answer: High-hazard industrial areas
Rationale: Deluge systems deliver large volumes of water rapidly for high-
hazard areas.
10. Fire alarm interfaces and supervisory signals follow which NFPA
standard?
A. NFPA 25
B. NFPA 13
C. NFPA 72
D. NFPA 14
Answer: NFPA 72
Rationale: NFPA 72 governs fire alarm and signaling systems.
11. What is the minimum clearance required below a sprinkler deflector in
storage occupancies?
A. 12 inches
B. 18 inches
C. 24 inches
D. 36 inches
