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QMinnesota Journeyman Sprinkler Fitter
Examination Actual Exam 2026/2027 –
Complete Exam-Style Questions with
Detailed Rationales | 100% Verified |
Pass Guaranteed – A+ Graded
1. What is the minimum required water supply duration for
a Class III commodity stored over 15 ft high in a building
protected by a control-mode specific application
(CMSA) sprinkler system, per MN amendments to NFPA 13?
✅ Answer: 120 minutes.
🧠 Rationale: Under Minnesota Rule 1305.0114, high-piled
storage of Class III commodities requires a two-hour (120-minute)
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water supply when CMSA sprinklers are used, aligning with the
most restrictive NFPA 13 provisions.
Q2. According to NFPA 13, what density/area combination is
required for an Ordinary Hazard Group 2 occupancy when
using a non-storage sprinkler design?
✅ Answer: 0.20 gpm/ft² over 1500 ft² (or 0.20/1500).
🧠 Rationale: NFPA 13 Table 19.2.3.1.1 specifies 0.20 gpm/ft²
for OH2 over a minimum design area of 1500 ft², subject to
area adjustments for quick-response sprinklers.
Q3 [SCENARIO]: A 50,000 ft² warehouse stores expanded
Group A plastics on single-row racks up to 20 ft high. What is
the minimum commodity classification?
✅ Answer: Class IV.
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🧠 Rationale: Expanded plastics are high-challenge fuels; even
with limited rack height, expanded Group A typically requires at
least Class IV rating, often exceeding ordinary hazard.
Q4. In Minnesota, which building types require automatic
sprinkler systems regardless of size, per 2020 Minnesota State
Building Code?
✅ Answer: Group R-2 and R-3 residential buildings exceeding
two stories or having more than 16 units.
🧠 Rationale: Minnesota amendments to IBC 903.2 mandate
sprinklers in all new Group R-2 and R-3 buildings with ≥3 stories
or >16 dwelling units, with limited exceptions.
Q5. Which of the following is the minimum required fire
flow for a building requiring a sprinkler system under IFC 2024
(adopted by MN)?
✅ Answer: 1500 gpm for 2 hours.
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🧠 Rationale: IFC Table B105.1 sets a minimum fire flow of
1500 gpm for buildings with sprinklers unless a fire flow
reduction study is approved; the duration is 120 minutes.
Q6–30 (selected topics):
Q6: Difference between pipe schedule and hydraulically
calculated systems – pipe schedule is obsolete for new
installations under MN code.
Q7: Light Hazard occupancy examples – offices, churches,
classrooms.
Q8: Extra Hazard Group 2 – spray painting areas, aircraft
hangars.
Q9: Minimum working pressure at the most remote
sprinkler – 7 psi (0.48 bar).
Q10: Area/density curve basis – *room of origin + 3
adjacent compartments*.
QMinnesota Journeyman Sprinkler Fitter
Examination Actual Exam 2026/2027 –
Complete Exam-Style Questions with
Detailed Rationales | 100% Verified |
Pass Guaranteed – A+ Graded
1. What is the minimum required water supply duration for
a Class III commodity stored over 15 ft high in a building
protected by a control-mode specific application
(CMSA) sprinkler system, per MN amendments to NFPA 13?
✅ Answer: 120 minutes.
🧠 Rationale: Under Minnesota Rule 1305.0114, high-piled
storage of Class III commodities requires a two-hour (120-minute)
,Page 2 of 45
water supply when CMSA sprinklers are used, aligning with the
most restrictive NFPA 13 provisions.
Q2. According to NFPA 13, what density/area combination is
required for an Ordinary Hazard Group 2 occupancy when
using a non-storage sprinkler design?
✅ Answer: 0.20 gpm/ft² over 1500 ft² (or 0.20/1500).
🧠 Rationale: NFPA 13 Table 19.2.3.1.1 specifies 0.20 gpm/ft²
for OH2 over a minimum design area of 1500 ft², subject to
area adjustments for quick-response sprinklers.
Q3 [SCENARIO]: A 50,000 ft² warehouse stores expanded
Group A plastics on single-row racks up to 20 ft high. What is
the minimum commodity classification?
✅ Answer: Class IV.
,Page 3 of 45
🧠 Rationale: Expanded plastics are high-challenge fuels; even
with limited rack height, expanded Group A typically requires at
least Class IV rating, often exceeding ordinary hazard.
Q4. In Minnesota, which building types require automatic
sprinkler systems regardless of size, per 2020 Minnesota State
Building Code?
✅ Answer: Group R-2 and R-3 residential buildings exceeding
two stories or having more than 16 units.
🧠 Rationale: Minnesota amendments to IBC 903.2 mandate
sprinklers in all new Group R-2 and R-3 buildings with ≥3 stories
or >16 dwelling units, with limited exceptions.
Q5. Which of the following is the minimum required fire
flow for a building requiring a sprinkler system under IFC 2024
(adopted by MN)?
✅ Answer: 1500 gpm for 2 hours.
, Page 4 of 45
🧠 Rationale: IFC Table B105.1 sets a minimum fire flow of
1500 gpm for buildings with sprinklers unless a fire flow
reduction study is approved; the duration is 120 minutes.
Q6–30 (selected topics):
Q6: Difference between pipe schedule and hydraulically
calculated systems – pipe schedule is obsolete for new
installations under MN code.
Q7: Light Hazard occupancy examples – offices, churches,
classrooms.
Q8: Extra Hazard Group 2 – spray painting areas, aircraft
hangars.
Q9: Minimum working pressure at the most remote
sprinkler – 7 psi (0.48 bar).
Q10: Area/density curve basis – *room of origin + 3
adjacent compartments*.
