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Indiana Fire Sprinkler Contractor Exam COMPLETE
QUESTIONS AND DETAILED SOLUTIONS LATEST
UPDATE THIS YEAR-JUST RELEASED
Summarized Exam Coverage – Indiana Fire Sprinkler Contractor
The exam covers water-based fire protection systems including wet, dry, preaction, and deluge
sprinklers, standpipe systems (NFPA 14), fire pumps (NFPA 20), hydraulic calculations, system
components (valves, fittings, hangers), inspection/testing/maintenance (ITM) per NFPA 25, plan reading,
and Indiana-specific amendments to fire and building codes.
1. A light hazard occupancy has a ceiling height of 16 feet. According to NFPA 13, what is the maximum
allowable spacing for a standard spray upright sprinkler?
A) 100 square feet
B) 130 square feet
C) 150 square feet
D) 200 square feet
Answer: D – For light hazard, standard spray sprinklers can cover up to 200 square feet, even with
ceiling heights up to 30 feet under certain conditions.
2. A warehouse contains exposed expanded group A plastic stored 15 feet high. Under NFPA 13, this
storage is classified as which commodity class?
A) Class I
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B) Class II
C) Class III
D) Class IV
Answer: D – Expanded plastics are specifically classified as high challenge; group A plastics fall into Class
IV or higher based on configuration.
3. A fire pump nameplate shows a rating of 1000 gpm at 120 psi. What is the expected net pressure
when the pump delivers 500 gpm?
A) Less than 120 psi (curve is not flat)
B) 120 psi (constant pressure type)
C) 60 psi (half the flow, half the pressure)
D) 240 psi (pressure inversely proportional)
Answer: A – Centrifugal pump curves show higher shutoff pressure and lower pressure at increased
flow; at 50% flow, pressure is slightly above rated.
4. During a fire pump flow test, the suction pressure is 50 psi and the discharge pressure is 110 psi. What
is the net pump pressure?
A) 50 psi
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B) 60 psi
C) 110 psi
D) 160 psi
Answer: B – Net pressure = discharge pressure – suction pressure = 110 – 50 = 60 psi.
5. An underground fire line is installed beneath a parking lot. According to NFPA 24, what is the
minimum depth of cover required below grade?
A) 2.5 feet
B) 3.0 feet
C) 3.5 feet
D) 4.5 feet
Answer: A – NFPA 24 requires minimum 2.5 feet (30 inches) of cover for underground fire mains under
pavements subject to vehicle loads.
6. A building has a class I standpipe system. What is the minimum flow and pressure required at the
most remote hose valve?
A) 250 gpm at 65 psi
B) 500 gpm at 100 psi
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C) 100 gpm at 45 psi
D) 1000 gpm at 150 psi
Answer: A – Class I standpipes require 250 gpm at 65 psi for the most remote valve and 500 gpm total
for the system.
7. A fire sprinkler contractor installs a backflow preventer on the fire line. The device fails its annual test.
What is the required action per NFPA 25?
A) Retest within 30 days
B) Repair or replace within 30 days
C) Notify building owner only
D) No action required until next annual test
Answer: B – NFPA 25 requires that failed backflow preventers be repaired or replaced within 30 days.
8. An inspector observes that four sprinklers in a spare cabinet are painted. Can these be used as
replacements?
A) Yes, if cleaned before installation
B) Yes, painting does not affect function
C) No, painted sprinklers must be replaced
Indiana Fire Sprinkler Contractor Exam COMPLETE
QUESTIONS AND DETAILED SOLUTIONS LATEST
UPDATE THIS YEAR-JUST RELEASED
Summarized Exam Coverage – Indiana Fire Sprinkler Contractor
The exam covers water-based fire protection systems including wet, dry, preaction, and deluge
sprinklers, standpipe systems (NFPA 14), fire pumps (NFPA 20), hydraulic calculations, system
components (valves, fittings, hangers), inspection/testing/maintenance (ITM) per NFPA 25, plan reading,
and Indiana-specific amendments to fire and building codes.
1. A light hazard occupancy has a ceiling height of 16 feet. According to NFPA 13, what is the maximum
allowable spacing for a standard spray upright sprinkler?
A) 100 square feet
B) 130 square feet
C) 150 square feet
D) 200 square feet
Answer: D – For light hazard, standard spray sprinklers can cover up to 200 square feet, even with
ceiling heights up to 30 feet under certain conditions.
2. A warehouse contains exposed expanded group A plastic stored 15 feet high. Under NFPA 13, this
storage is classified as which commodity class?
A) Class I
, Page 2 of 129
B) Class II
C) Class III
D) Class IV
Answer: D – Expanded plastics are specifically classified as high challenge; group A plastics fall into Class
IV or higher based on configuration.
3. A fire pump nameplate shows a rating of 1000 gpm at 120 psi. What is the expected net pressure
when the pump delivers 500 gpm?
A) Less than 120 psi (curve is not flat)
B) 120 psi (constant pressure type)
C) 60 psi (half the flow, half the pressure)
D) 240 psi (pressure inversely proportional)
Answer: A – Centrifugal pump curves show higher shutoff pressure and lower pressure at increased
flow; at 50% flow, pressure is slightly above rated.
4. During a fire pump flow test, the suction pressure is 50 psi and the discharge pressure is 110 psi. What
is the net pump pressure?
A) 50 psi
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B) 60 psi
C) 110 psi
D) 160 psi
Answer: B – Net pressure = discharge pressure – suction pressure = 110 – 50 = 60 psi.
5. An underground fire line is installed beneath a parking lot. According to NFPA 24, what is the
minimum depth of cover required below grade?
A) 2.5 feet
B) 3.0 feet
C) 3.5 feet
D) 4.5 feet
Answer: A – NFPA 24 requires minimum 2.5 feet (30 inches) of cover for underground fire mains under
pavements subject to vehicle loads.
6. A building has a class I standpipe system. What is the minimum flow and pressure required at the
most remote hose valve?
A) 250 gpm at 65 psi
B) 500 gpm at 100 psi
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C) 100 gpm at 45 psi
D) 1000 gpm at 150 psi
Answer: A – Class I standpipes require 250 gpm at 65 psi for the most remote valve and 500 gpm total
for the system.
7. A fire sprinkler contractor installs a backflow preventer on the fire line. The device fails its annual test.
What is the required action per NFPA 25?
A) Retest within 30 days
B) Repair or replace within 30 days
C) Notify building owner only
D) No action required until next annual test
Answer: B – NFPA 25 requires that failed backflow preventers be repaired or replaced within 30 days.
8. An inspector observes that four sprinklers in a spare cabinet are painted. Can these be used as
replacements?
A) Yes, if cleaned before installation
B) Yes, painting does not affect function
C) No, painted sprinklers must be replaced
